GOST 33229-2015

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  ГОСТ 33229-2015

GOST 33229−2015 Pipe for boiler and heat exchange equipment. Specifications. Part 1. Seamless steel tubes for operating under pressure is not more than 6.4 MPa and at temperature not higher than 400 °C

GOST 33229−2015

INTERSTATE STANDARD

TUBES FOR BOILER AND HEAT EXCHANGE EQUIPMENT

Specifications

Part 1

Seamless steel tubes for operating under pressure is not more than 6.4 MPa and at temperature not higher than 400°C

Tubes for boiler and heat exchanging equipment. Technical specifications. Part 1. Seamless steel pipes to work under pressure not more than 6.4 MPa and at temperatures not exceeding 400°C

ISS 77.140.75

Date of introduction 2016−08−01

Preface

Purpose and principles the basic procedure for interstate standardization have been established in GOST 1.0−92 «interstate standardization system. Basic provisions» and GOST 1.2−2009 «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. Rules of development, adoption, application, renewal and cancellation"

Data on standard

1 DEVELOPED by the Technical Committee for standardization TC 357 «Steel and cast iron pipes and cylinders», Open joint stock company «Russian scientific research Institute of pipe industry» (JSC «RosNITI»)

2 SUBMITTED by the Technical Committee for standardization TC 357 «Steel and cast iron pipes and cylinders"

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (minutes dated January 30, 2015 No. 74-P)

The adoption voted:

Short name of the country on MK (ISO 3166) 004−97	Country code MK (ISO 3166) 004−97	Abbreviated name of the national authority for standardization
Belarus	BY	Gosstandart Of The Republic Of Belarus
Kazakhstan	KZ	Gosstandart Of The Republic Of Kazakhstan
Kyrgyzstan	KG	Kyrgyzstandard
Russia	EN	Rosstandart

4 by Order of the Federal Agency for technical regulation and Metrology dated December 25, 2015 2204 N-St inter-state standard GOST 33229−2015 introduced as a national standard of the Russian Federation from August 1, 2016.

5 this standard was developed based on the national standard of Russian Federation GOST R 55442−2013 «Pipe for boiler and heat exchange equipment. Specifications. Part 1. Seamless steel tubes for operating under pressure is not more than 6.4 MPa and at temperatures not above 400°C».

By order of the Federal Agency for technical regulation and Metrology dated December 25, 2015 2204 N-St GOST R 55442−2013 abolished from 1 August 2016.

6 INTRODUCED FOR THE FIRST TIME

Information about the changes to this standard is published in the annual reference index «National standards», and the text changes and amendments — in monthly information index «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in the monthly information index «National standards». Relevant information, notification and lyrics are also posted in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet (www.gost.ru)

Introduction

This standard was developed in connection with necessity of creation of normative base on pipe for boiler and heat exchange equipment and eliminating the supply of such pipes according to various standards improper purpose, does not fully meet the requirements of the Rules of design and safe operation of boiler and heat exchange equipment.

This standard is developed on the basis of special technical conditions TU 14−3-190−2004 «seamless steel Tubes for boilers and pipelines» with the addition of steel grades 09G2S and 10G2, the manufacture of pipes for boiler and heat exchange equipment provided by the Rules according to GOST 8731 «Pipe seamless hot-deformed steel. Specifications» and TU 14−3-1128−82* «seamless hot deformed steel Pipes for gas pipelines of gas-lift systems."
This standard is part of a complex of standards of tubes for boiler and heat exchange equipment.
Compared to the previously applied documents on the pipe to the specified destination in this standard clearly sets out the scope of pipe, set out the requirements on the mode of heat treatment of tubes, supplemented with the possibility of testing hardness of metal tubes, tensile tests at various elevated temperatures and testing the impact strength at various low temperatures.

1 Scope

This standard applies to cold-deformed and hot-deformed seamless steel pipe, carbon and low-alloy steels, intended for boiler, heat-exchange equipment and pipelines working under pressure of not more than 6.4 MPa and at temperatures not above 400 °C.

2 Normative references

This standard uses the regulatory references to the following standards:

GOST 166−89 (ISO 3599−76) Calipers. Specifications
GOST 1050−2013 steel Products of non-alloy structural quality and special steels. General specifications
GOST 2015−84 smooth unregulated Gauges. Technical requirements
GOST 2216−84 Gauges-adjustable bracket smooth. Specifications
GOST 3728−78 Pipe. Test method for bend
GOST 3845−75 Pipe metal. Test method hydraulic pressure
GOST 4543−71 rolled alloy structural steel. Specifications
GOST 6507−90 Micrometers. Specifications
GOST 7502−98 metallic measuring tape. Specifications
GOST 7565−81 Iron, steel and alloys. Sampling method for determination of chemical composition
GOST 8026−92 Line calibration. Specifications
GOST 8694−75 Pipe. The test method for distribution
GOST 8695−75 Pipe. Test method for flattening
GOST 9012−59 Metals. Method of measuring hardness Brinell hardness
GOST 9454−78 Metals. Test method for impact strength at low, room and elevated temperatures
GOST 10006−80 Pipe metal. Test method tensile
GOST 10243−75 Steel. Test method and evaluation of the macrostructure
GOST 10692−2015 Pipe steel, cast iron and fittings to them. Acceptance, marking, packing, transportation and storage
GOST 11358−89 Thickness and stenkomer indicator with a scale division of 0.01 and 0.1 mm. specifications
GOST 12359−99 Steels carbon, alloyed and high alloy. Methods for determination of nitrogen
GOST 14810−69 plug Gauges smooth two-sided with inserts of diameter over 3 to 50 mm. Design and dimensions
GOST 17410−78 nondestructive testing. The seamless cylindrical metal pipe. Methods of ultrasonic flaw detection
GOST 18360−93 Gauges-bracket sheet for diameters from 3 to 260 mm. Dimensions
GOST 18365−93 Gauges bracket sheet with changeable lips for diameters over 100 to 360 mm. Dimensions
GOST 18895−97 Steel. Method of photoelectric spectral analysis
GOST 19040−81 Pipe metal. Method of tensile tests at elevated temperatures
GOST 19281−89 rolled steel with increased strength. General specifications
GOST 22536.0−87 carbon Steel and unalloyed cast iron. General requirements for methods of analysis
GOST 22536.1−88 carbon Steel and unalloyed cast iron. Methods for determination of total carbon and graphite
GOST 22536.2−87 carbon Steel and unalloyed cast iron. Methods of determining sulphur
GOST 22536.3−88 carbon Steel and unalloyed cast iron. Methods for determination of phosphorus
GOST 22536.4−88 carbon Steel and unalloyed cast iron. Methods for determination of silicon
GOST 22536.5−87 carbon Steel and unalloyed cast iron. Methods for determination of manganese
GOST 22536.6−88 carbon Steel and unalloyed cast iron. Methods for determination of arsenic
GOST 22536.7−88 carbon Steel and unalloyed cast iron. Methods for determination of chromium
GOST 22536.8−87 carbon Steel and unalloyed cast iron. Methods for determination of copper
GOST 22536.9−88 carbon Steel and unalloyed cast iron. Methods for determination of Nickel
GOST 22536.10−88 carbon Steel and unalloyed cast iron. Methods for determination of aluminium
GOST 22536.11−87 carbon Steel and unalloyed cast iron. Methods for determination of titanium
GOST 26877−91 metal Products. Methods of measuring form deviations of
GOST 27809−95 Cast iron and steel. Methods for spectrographic analysis
GOST 28548−90 of steel Pipe. Terms and definitions
GOST 31458−2015 (ISO 10474:2013) steel Pipes, of iron and fittings to them. Documents on acceptance inspection
GOST 32528−2013 of seamless hot deformed steel Pipes. Specifications

Note — When using this standard appropriate to test the effect of reference standards in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet or in the annual information index «National standards» published as on January 1 of the current year, and the editions of the monthly information index «National standards» for the current year. If the reference standard is replaced (changed), when using this standard should be guided by replacing (amended) standard. If the reference standard is cancelled without replacement, then the situation in which the given link applies to the extent that does not affect this link.

3 Terms and definitions

This standard applies the terminology according to GOST 28548 and terms [1] in respect of surface defects.

4 Symbols and abbreviations

In this standard the following notation and abbreviations:

D — outer diameter;

S — wall thickness of the pipe;

M — weight of 1 m pipe;

 — carbon equivalent;

, , , ultimate strength, yield strength, relative elongation and relative narrowing of the mechanical properties of the metal, determined in the tensile test;

KCV — impact strength — mechanical property of the metal, determined at test for impact strength.

5 Assortment

5.1 Types of pipes and delivery condition

Tubes manufactures seamless hot-wrought or cold-drawn.

Tubes put in a condition after heat treatment.

5.2 steel grades

Tubes are made of carbon steel grades 10 and 20 to GOST 1050, from low-alloyed steel grades 10G2 GOST 4543 and 09G2S GOST 19281.

5.3 Dimensions

Pipe manufactured by outside diameter and wall thickness dimensions specified for hot-deformed pipes in table 1, for cold-deformed tubes in table 2, normal and high precision on diameter and/or wall thickness (see tables 7 and 8).

By agreement between the manufacturer and the customer the tubes can be made of intermediate sizes not specified in tables 1 and 2.

By agreement between manufacturer and customer hot tubes can be manufactured with dimensions according to GOST 32528, over the specified in this standard.

By agreement between the manufacturer and the customer produce pipe internal diameter and wall thickness, inner and outer diameter.

5.4 Length

The length of the pipe manufacture:

a) of random length in the range from 4.0 to 12.5 mm;

b) measuring length within off-gage length;

in) dimensional length within off-gage length with an allowance for each cut to 5 mm if the other stock is not specified in the order.

By agreement between the manufacturer and the customer pipe lengths and dimensional length may be a length not covered in this standard.


Table 1 — outside diameter, wall thickness and theoretical weight of 1 m ofhot-deformed pipes

The outer diameter of pipes, mm	Theoretical weight of 1 m pipe, kg, at wall thickness, mm
	2,5	3,0	3,5	4,0	4,5	5,0	5,5	6,0	6,5	7,0	7,5	8,0	9,0	10,0	11,0	12,0	13,0	14,0	15,0	16,0	17,0	18,0
25	1,39	1,63	1,86	2,07	2,28	2,47	2,65	Of 2.81	2,97	3,11	3,24	3,35	-	-	-	-	-	-	-	-	-	-
28	1,57	1,85	2,11	2,37	2,62	Of 2.84	3,05	3,26	3,45	3,63	3,79	3,95	-	-	-	-	-	-	-	-	-	-
30	1,70	Of 2.00	2,29	2,57	Of 2.83	Is 3.08	3,32	3,55	3,77	Of 3.97	4,16	4,34	-	-	-	-	-	-	-	-	-	-
32	Of 1.82	2,15	2,46	2,76	3,05	3,33	3,59	3,85	4,09	4,32	A 4.53	4,74	-	-	-	-	-	-	-	-	-	-
38	2,19	2,59	Of 2.98	3,35	3,72	4,07	4,41	4,74	5,05	5,35	5,64	5,92	-	-	-	-	-	-	-	-	-	-
40	2,31	Of 2.74	3,15	3,55	3,94	4,32	4,68	5,03	5,37	5,70	6,01	6,31	-	-	-	-	-	-	-	-	-	-
42	2,44	2,89	3,32	3,75	4,16	4,56	4,95	Of 5.33	5,69	Of 6.04	6,38	Of 6.71	7,32	7,89	-	-	-	-	-	-	-	-
45	2,62	3,11	3,58	Of 4.04	4,49	4,93	5,36	5,77	6,17	6,56	Of 6.94	7,30	7,99	8,63	-	-	-	-	-	-	-	-
50	2,93	3,43	Of 4.01	4,54	5,05	5,55	Of 6.04	Of 6.51	Of 6.97	7,42	7,86	8,29	9,11	9,87	-	-	-	-	-	-	-	-
51	-	3,55	4,10	A 4.64	5,16	5,67	6,17	Of 6.66	7,13	7,60	8,04	8,48	9,32	10,11	-	-	-	-	-	-	-	-
54	-	3,77	4,36	4,93	5,49	Of 6.04	Of 6.58	7,10	Of 7.61	8,11	8,60	Of 9.08	9,99	10,85	11,67	-	-	-	-	-	-	-
57	-	Of 4.00	4.62 a	Of 5.23	5,83	Of 6.41	6,99	7,55	8,10	8,63	9,16	Of 9.67	10,65	At 11.59	12,48	Of 13.32	Of 14.11	-	-	-	-	-
60	-	4,22	4,88	5,52	6,16	Of 6.78	7,39	7,99	8,58	9,15	Of 9.71	Of 10.26	To 11.32	Of 12.33	Of 13.29	Of 14.21	Of 15.07	15,88	-	-	-	-
76	-	5,40	6,26	7,10	Of 7.94	8,76	9,56	10,36	11,14	11,91	12,67	13,42	14,87	16,28	17,63	Of 18.94	20,20	21,41	22,57	23,68	Of 24.74	25,75
83	-	-	6,86	7,79	Of 8.71	9,62	10,51	11,39	12,26	13,12	13,96	14,80	16,43	18,00	19,53	21,01	Of 22.44	23,82	25,16	Of 26.44	Of 27.67	The 28.85
89	-	-	Of 7.38	Of 8.39	Of 9.38	10,36	Of 11.33	12,28	Of 13.23	14,16	Of 15.07	15,98	17,76	19,48	Loss of 21.16	22,70	24,37	25,90	27,37	28,81	30.19 mm	31,52
102	-	-	8,50	Of 9.67	10,82	11,96	Of 13.09	Of 14.21	15,31	16,40	Of 17.48	18,55	20,64	22,69	24,69	26,63	28,53	30,38	32,18	From 33.93	Of 35.64	37,29
108	-	-	-	Of 10.26	11,49	12,70	13,90	Of 15.09	16,27	17,44	To 18.59	19 and 73	Of 21.97	24,17	26,31	28,41	Of 30.46	Of 32.46	34,40	36,30	38,15	39,95
114	-	-	-	10,85	12,15	Of 13.44	14,72	15,98	17,23	18,47	19,70	20 and 91	From 23.31	25,65	27,94	30.19 mm	Of 32.38	34 to 53	36,62	Of 38.67	40,67	42,62
121	-	-	-	11,54	12,93	14,30	Of 15.67	Of 17.02	18,35	19,68	20,99	22,29	24,86	27,37	Of 29.84	32,26	To 34.62	36,94	39,21	41,63	43,60	And 45.72
133	-	-	-	The 12.73	14,26	15,73	Of 17.29	13,79	Of 20.23	21,75	Of 23.21	Of 24.66	27,52	30,33	33,10	35,81	38,47	Of 41.09	43,65	46,17	43,63	51,05
140	-	-	-	-	15,04	16,65	18,24	Of 19.83	21,40	22,96	24,51	26,04	A 29.08	Of 32.06	35,00	37,88	40,72	Of 43.50	Of 46.24	48,93	51,57	54,16
146	-	-	-	-	15,70	17,39	19,06	Of 20.72	22 and 36	24,00	Of 25.62	27,23	30,41	As 33.54	36,62	39,66	42,64	Of 45.57	48,46	From 51.30	54,08	56,82
152	-	-	-	-	Of 16.37	Of 18.13	19,87	21,60	Of 23.32	25,03	26,73	28,41	31,74	35,02	38,25	41,43	44,56	47,65	50,68	53,66	56,60	59,48
159	-	-	-	-	17,15	Of 18.99	20,82	22,64	24,45	26,24	To 28.02	Of 29.79	33,29	Of 36.75	40,15	Of 43.50	46,81	50,06	53,27	56,43	59,53	62,59
168	-	-	-	-	-	20,10	22,04	Of 23.97	25,89	27,79	29,69	31,57	35,29	38,97	42,59	46,17	49,69	53,17	56,60	59,98	63,31	66,59
194	-	-	-	-	-	From 23.31	25,57	27,82	30,06	Of 32.28	34,50	Of 36.70	From 41.06	45,38	49,64	Of 53.86	58,03	62,15	66,22	70,24	74,21	78,13
203	-	-	-	-	-	-	-	29,15	31,50	33,84	Of 36.16	38,47	43,06	47,60	52,09	56,52	60,91	Of 65.25	69,55	73,79	77,98	82,12
219	-	-	-	-	-	-	-	31,52	34,06	36,60	Of 39.12	41,63	Of 46.61	51,54	56,43	61,26	66,04	70,78	75,46	80,10	84,69	89,23
245	-	-	-	-	-	-	-		38,23	Of 41.09	43,93	46,76	52,38	57,95	63,48	68,95	74,38	79,76	85,08	90,36	95,59	100,77
273	-	-	-	-	-	-	-	-	42,72	45,92	49,11	52,28	58,60	64,86	71,07	77,24	83,36	89,42	95,44	101,41	107,33	113,20
299	-	-	-	-	-	-	-	-	-	-	53,92	57,41	64,37	71,27	78,13	84,93	91,69	98,40	Of 105.06	111,67	118,23	124,74
325	-	-	-	-	-	-	-	-	-	-	53,73	Of 62.54	70,14	77,68	To RUB 85.18	92,63	100,03	107,38	114,68	121,93	129,13	136,28
351	-	-	-	-	-	-	-	-	-	-	-	67,67	75,91	84,10	92,23	100,32	108,36	116,35	124,29	132,19	140,03	147,82
377	-	-	-	-	-	-	-	-	-	-	-	-	81,68	90,51	99,29	108,02	116,70	125,33	133,91	142,45	150 and 93	159,36
426	-	-	-	-	-	-	-	-	-	-	-		92,56	102,59	112,68	122,62	132,41	142,25	152,04	161,78	171,47	181,11
Theoretical weight of 1 m pipe is given for reference. Note — a Theoretical weight of 1 m pipe, kg, calculated according to the following formula: . (1)

Table 2 — Outer diameter, wall thickness and theoretical weight of 1 mcold-deformed tubes

The outer diameter of pipes, mm	Theoretical weight of 1 m pipe, kg, at wall thickness, mm
	0,3	0,4	0,5	0,6	0,8	1,0	1,2	1,4	1,5	1,6	1,8	2,0	2,2	2,5	2,8	3,0	3,2	3,5
5	0,035	0,045	0,056	0,065	0,083	0,099	0,112	0,124	0,129	-	-	-	-	-	-	-	-	-
6	0,042	0,055	0,068	0,080	The 0.103	0,123	0,142	0,159	0,166	0,174	0,186	0.197 inch	-	-	-	-	-	-
7	0,050	0,065	0,030*	0,095	0,122	0,148	And 0.172	0,193	0,203	0,213	0,231	0,247	Is 0.260	0,277	-	-	-	-
___________________ * Consistent with the original. — Note the manufacturer’s database.
8	0,057	0,075	0,093	0,110	0,142	0,173	0,201	0,228	0,240	0,253	0,275	0,296	0,315	0,339	-	-	-	-
9	0,064	Of 0.085	0,105	0,124	0,162	0.197 inch	0,231	0,262	0,277	0,292	0,320	0,345	0,369	0,401	-	-	-	-
10	0,072	0,095	0,117	0,139	0,182	0,222	0,26	0,297	0,314	0,332	0,364	0,395	0,426	0,462	0,497	0,513	0,537	0,561
11	0,079	0,105	0,129	0,154	0,201	0,247	0,29	0,331	0,351	0,371	0,408	0,444	0,477	0,524	0,566	0,592	0,616	0,647
12	0,087	0,114	0,142	0,169	0,221	0,271	0,32	0,366	0,388	0,410	0,453	0,493	0,532	0,586	0,635	0,666	0,694	0,734
13	0,094	0,124	0,154	0,184	0,241	0,296	0,349	0,401	0,425	0,450	0,497	0,543	0,586	0,647	0,704	0,740	0,773	0,820
14	0,101	0,134	0,166	0,198	Is 0.260	0,321	0,379	0,435	0,462	0,489	0,542	0,592	0,640	0.709 inch	0,773	0,314	0,852	0,906
15	0,109	0,144	0,179	0,213	0,280	0,345	0,408	0,470	0,499	0,529	0,586	0,641	0,694	0,771	0,842	0,888	0,931	0,993
16	0,116	0,154	0,191	0,228	0,300	0,370	0,438	0,504	0,536	0,568	0,630	0,691	0,749	0,832	0,911	0,962	1,010	1,079
17	0,124	0,164	0,203	0,243	0,32	0,395	0,468	0,539	0,573	It was 0.608	0,675	0,740	0,803	0,894	0,981	1,036	1,089	1,165
18	0,131	0,174	0,216	0,258	0,339	0,419	0,497	0,573	0,610	0,647	0,719	0,739	0,857	0,956	1,050	1,110	1,168	1,252
19	0,138	0,183	0,228	0,272	0,359	0,444	0,527	It was 0.608	0,647	0,687	0,764	0,838	0,911	1,017	1,119	1,184	1,247	1,338
20	Of 0.146	0,193	0,240	0,287	0,379	0,469	0,556	0,642	0,684	0,726	0,308	0,838	0,966	1,079	1,188	1,258	1,326	1,424
21	-	0,203	0,253	0,302	0,399	0,493	0,536	0,677	0,721	0,765	0,352	0,937	One thousand twenty	1,141	1,257	1,332	1,405	1,511
22	-	0,213	0,265	0,317	0,418	0,518	0,616	0,711	0,758	0.305 per	0,397	0,936	1,074	1,202	1,326	1,406	1,484	1,597
23	-	0,223	0,277	0,331	0,438	0,543	0,645	0,746	0,795	0,344	0,941	1,036	1,129	1,264	1,395	1,480	1,563	1,683
24	-	0,233	0,290	0,346	0,458	0,567	0,675	0,780	0,832	0,384	0,985	1,035	1,183	1,326	1,464	1,554	1,641	1,769
25	-	0,243	0,302	0,361	0,477	0,592	0,704	0,815	0,869	0,923	1,030	1,134	1,237	1,387	1,533	1,628	1,720	1,856
26	-	0,253	0,314	0,376	0,497	0,617	0,734	0,849	0,906	0,963	1,074	1,184	1,291	1,449	1,602	1,702	1,800	1,942
27	-	0,262	0,327	0,391	0,517	0,641	0,764	0,884	0,943	1,002	1,119	1,233	1,346	1,346	1,671	1,776	1,878	2,028

Continuation of table 2

The outer diameter of pipes, mm	Theoretical weight of 1 m pipe, kg, at wall thickness, mm
	4,0	4,5	5,0	5,5	6,0	6,5	7,0	7,5	8,0	8,5	9,0	9,5	10,0	11,0	12,0	14,0	16,0	18,0
5	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
6	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
7	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
9	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
10	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
11	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
12	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
13	0,888	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
14	0,986	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
15	1,085	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
16	1,184	1,276	1,356	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
17	1,282	1,387	1,480	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
18	1,381	1,498	1,603	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
19	1,480	1,609	1,726	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
20	1,578	1,720	1,850	1,967	2,072	-	-	-	-	-	-	-	-	-	-	-	-	-
21	1,677	1,831	1,973	2,102	2,220	-	-	-	-	-	-	-	-	-	-	-	-	-
22	1,776	1,942	2,096	2,238	2,368	-	-	-	-	-	-	-	-	-	-	-	-	-
23	1,874	2,053	2,220	2,374	2,515	-	-	-	-	-	-	-	-	-	-	-	-	-
24	1,973	2,164	2,343	2,509	2,663	2,805	-	-	-	-	-	-	-	-	-	-	-	-
25	2,072	2,275	2,466	2,645	2,811	2,965	3,107	-	-	-	-	-	-	-	-	-	-	-
26	2,170	2,386	2,589	2,781	2,959	3,125	3,280	-	-	-	-	-	-	-	-	-	-	-
27	2,269	2,497	2,713	2,916	3,107	3,286	3,453	-	-	-	-	-	-	-	-	-	-	-

Continuation of table 2

The outer diameter of pipes, mm	Theoretical weight of 1 m pipe, kg, at wall thickness, mm
	0,3	0,4	0,5	0,6	0,8	1,0	1,2	1,4	1,5	1,6	1,8	2,0	2,2	2,5	2,8	3,0	3,2	3,5
28	-	0,272	0,339	0,405	0,537	0,666	0,793	0,918	0.980-x	1,042	1,163	1,232	1,400	1,400	1,740	1,850	1,957	2,115
30	-	0,292	0,364	0,435	0,576	0,715	0,852	0,987	1,054	1,121	1,252	1,331	1,508	1,508	1,878	1,998	2,115	2,287
32	-	0,312	0,388	0,465	0,616	0,764	0,911	1,056	1,128	1,200	1,341	1,430	1,617	1,617	2,016	2,146	2,273	2,460
34	-	0,331	0,413	0,494	0,655	0,814	0,971	1,126	1,202	1,278	1,429	1,578	1,725	1,725	2,154	2,294	2,430	2,633
35	-	0,341	0,425	0,509	0,675	0,838	1,000	1,160	1,239	1,318	1,474	1,628	1,780	1,780	2,223	2,367	2,510	2,719
36	-	0,351	0,438	0,524	0,694	0,863	1,030	1,195	1,276	1,357	1,518	1,677	1,834	1,834	2,293	2,441	2,588	2,805
38	-	0,371	0,462	0,553	0,734	0,912	1,039	1,264	1,350	1,436	1,607	1,776	1,942	1,942	2,431	2,589	2,746	2,978
40	-	0,391	0,487	0,583	0,773	0,962	1,148	1,333	1,424	1,515	1,696	1,874	2,051	2,051	2,569	2,737	2,904	3,150
42	-	-	-	-	-	1,011	1,207	1,402	1,498	1,594	1,785	1,973	2,159	2,435	2,707	2,885	3,062	3,323
45	-	-	-	-	-	1,085	1,296	1,505	1,609	1,712	1,918	2,121	2,322	2,620	2,914	3,107	3,299	3,582
48	-	-	-	-	-	1,159	1,385	1,609	1,720	1,831	2,051	2,269	2,435	2,805	3,121	3,329	3,535	3,841
50	-	-	-	-	-	1,208	1,444	1,678	1,794	1,910	2,140	2,368	2,594	2,929	3,259	3,477	3,693	4,014
51	-	-	-	-	-	1,233	1,474	1,712	1,831	1,949	2,184	2,417	2,648	2,990	3,328	3,551	3,772	4,100
53	-	-	-	-	-	1,282	1,533	1,782	1,905	2,028	2,273	2,515	2,756	3,114	3,466	3,699	3,930	4,273
54	-	-	-	-	-	1,307	1,563	1,816	1,942	2,068	2,317	2,565	2,810	3,175	3,535	3,773	4,009	4,359
56	-	-	-	-	-	1,356	1,622	1,885	2,016	2,147	2,406	2,663	2,919	3,298	3,674	3,921	4,167	4,532
57	-	-	-	-	-	1,381	1,651	1,920	2,053	2,186	2,450	2,713	2,973	3,360	3,743	3,995	Of 4.246	4,618
60	-	-	-	-	-	1,455	1,740	2,023	2,164	2,304	2,584	2,861	3,136	3,545	3,950	4,217	4,482	4,877
63	-	-	-	-	-	1,529	1,829	2,127	2,275	2,423	2,717	3,009	3,499	3,730	4,157	4,439	4,719	5,136
65	-	-	-	-	-	1,578	1,833	2,196	2,349	2,502	2,806	3,107	3,407	3,853	4,295	4,587	4,877	5,308
68	-	-	-	-	-	1,652	1,977	2,299	2,460	2,620	2,939	3,255	3,570	4,033	4,502	4,809	5,113	5,567
70	-	-	-	-	-	1,702	2,036	2,368	2,534	2,699	3,027	3,354	3,673	4,162	4,640	4,957	5,271	5,740
73	-	-	-	-	-	1,776	2,125	To 2.472	2,645	2,817	3,161	3,502	3,841	4,347	4,847	5,179	5,508	5,999
75	-	-	-	-	-	1,825	2,184	2,541	2,719	2,896	3,249	3,601	3,930	4,470	4,986	5,327	5,666	6,172
76	-	-	-	-	-	1,850	2,214	2,576	2,756	2,936	3,294	3,650	4,004	4,532	5,055	5,401	5,745	6,258

Continuation of table 2

The outer diameter of pipes, mm	Theoretical weight of 1 m pipe, kg, at wall thickness, mm
	4,0	4,5	5,0	5,5	6,0	6,5	7,0	7,5	8,0	8,5	9,0	9,5	10,0	11,0	12,0	14,0	16,0	18,0
28	2,368	2,608	2,836	3,052	3,255	3,446	3,625	-	-	-	-	-	-	-	-	-	-	-
Thirty	2,565	2,830	3,083	3,323	3,551	3,767	3,971	4,162	4,34	-	-	-	-	-	-	-	-	-
32	2,762	3,052	3,329	3,594	3,847	4,087	4,316	4,531	4,735	-	-	-	-	-	-	-	-	-
34	2,959	3,274	3,576	3,366	4,143	4,408	4,661	4,901	5,129	-	-	-	-	-	-	-	-	-
35	3,058	3,385	3,699	4,001	4,291	4,568	4,834	5,086	5,327	-	-	-	-	-	-	-	-	-
36	3,157	3,496	3,822	4,137	4,439	4,728	5,006	5,271	5,524	-	-	-	-	-	-	-	-	-
38	3,354	3,718	4,069	4,408	4,735	5,049	5,352	5,641	5,919	6,184	6,437	-	-	-	-	-	-	-
40	3,551	3,940	4,316	4,680	5,031	5,369	5,697	6,011	6,313	6,603	6,881	-	-	-	-	-	-	-
42	3,749	4,162	4,562	4,951	5,327	5,690	6,042	6,381	6,708	7,023	7,324	-	-	-	-	-	-	-
45	4,044	4,495	4,932	5,353	5,771	6,171	Susan: 6.560	6,936	7,300	7,651	7,990	8,317	8,632	-	-	-	-	-
48	4,340	4,327	5,302	5,765	6,215	6,652	7,078	7,491	7,892	8,280	8,656	9,020	9,371	-	-	-	-	-
50	4,533	5,049	5,549	6,036	6,511	6,972	7,423	7,861	8,286	8,699	9,110	9,489	9,865	10,580	11,246	-	-	-
51	4,636	5,160	5,672	6,172	6,659	7,132	7,596	8,046	8,484	8,909	9,322	9,723	10,111	10,851	11,542	-	-	-
53	4,834	5,382	5,919	Of 6, 443	6,955	7,453	7,941	8,416	8,378	9,328	9,766	10,191	10,604	11,394	12,133	-	-	-
54	4,932	5,493	6,042	6,573	7,103	7,613	8,114	8,601	9,075	9,538	9,988	10,426	10,851	11,665	12,429	-	-	-
56	5,130	5,715	6,289	6,850	7,398	7,934	8,459	8,971	9,470	9,957	10,432	10,394	11,345	12,207	13,021	-	-	-
57	5,228	5,826	6,412	6,985	7,546	8,095	8,632	9,156	9,667	10,167	10,654	11,128	11,591	12,479	13,317	-	-	-
60	5,524	6,159	6,782	7,392	7,990	8,575	9,149	9,710	10,259	10,796	To 11.32	11,331	12,331	13,293	14,205	-	-	-
63	5,820	6,492	7,152	7,799	8,434	9,056	9,667	10,265	10,851	11,424	11,985	12,534	13,070	14,106	15,093	-	-	-
65	6,017	6,714	7,398	8,070	8,730	9,377	10,013	10,635	11,246	11,844	12,429	13,003	13,564	14,649	15,685	-	-	-
68	6,313	7,047	7,768	3,477	9,174	9,857	10,530	11,190	11,838	12,473	13,095	13,706	14,304	15,463	16,573	-	-	-
70	6,511	7,269	8,015	3,749	9,470	10,178	10,876	11,560	12,232	12,892	13,539	14,174	14,797	16,005	17,164	-	-	-
73	6,807	7,602	8,385	9,156	9,914	10,659	11,394	12,115	12,824	13,521	14,205	14,877	15,537	16,819	18,052	-	-	-
75	7,004	7,324	8,631	9,427	10,210	10,930	11,739	Make 12 485	13,219	13,940	14,649	15,345	16,030	17,362	18,644	-	-	-
76	7,103	7,935	8,755	9,562	10,358	11,140	11,911	12,670	13,416	14,150	14,871	15,580	16,276	17,633	18,940	-	-	-

Continuation of table 2

The outer diameter of pipes, mm	Theoretical weight of 1 m pipe, kg, at wall thickness, mm
	0,3	0,4	0,5	0,6	0,8	1,0	1,2	1,4	1,5	1,6	1,8	2,0	2,2	2,5	2,8	3,0	3,2	3,5
80	-	-	-	-	-	-	2,331	2,714	2,904	3,094	3,471	3,847	4,221	4,778	5,331	5,697	6,060	6,603
83	-	-	-	-	-	-	2,420	2,817	3,015	3,212	3,605	3,995	4,383	4,963	5,538	5,919	6,298	6,862
85	-	-	-	-	-	-	2,430	2,886	3,089	3,291	3,693	4,094	4,492	5,086	5,676	6,067	6,455	7,035
89	-	-	-	-	-	-	2,593	3,024	3,237	3,449	3,871	4,291	4,709	5,333	5,952	6,363	6,771	7,380
90	-	-	-	-	-	-	2,623	3,059	3,274	3,488	3,915	4,340	4,763	5,395	6,021	6,437	6,850	7,466
95	-	-	-	-	-	-	2,776	3,232	3,459	3,685	4,137	4,587	5,034	5,703	6,367	6,867	7,244	7,898
100	-	-	-	-	-	-	-	-	3,644	3,883	4,359	4,834	5,306	6,011	6,712	7,176	7,639	8,329
102	-	-	-	-	-	-	-	-	3,718	3,962	4,448	Of 4.933	5,414	6,135	6,850	7,324	7,797	8,502
103	-	-	-	-	-	-	-	-	3,940	4,198	4,714	5,223	5,740	6,504	7,264	7,768	8,270	9,020
110	-	-	-	-	-	-	-	-	4,014	4,277	4,803	5,327	5,849	6,623	7,402	7,916	9,428	9,193
120	-	-	-	-	-	-	-	-	4,384	4,672	5,247	5,820	6,391	7,244	8,093	8,656	9,217	10,056
130	-	-	-	-	-	-	-	-	4,754	5,066	5,691	6,313	6,934	7,861	8,783	9,396	10,007	10,919
140	-	-	-	-	-	-	-	-	-	5,461	5,135	6,807	7,476	8,477	9,474	10,136	10,796	11,782
150	-	-	-	-	-	-	-	-	-	-	6,579	7,300	8,019	9,094	10,164	10,876	11,584	12,645
160	-	-	-	-	-	-	-	-	-	-	-	7,793	8,561	9,710	10,855	11,616	12,374	13,508
170	-	-	-	-	-	-	-	-	-	-	-	8,286	9,104	10,327	11,546	12,355	13,163	Fourteen thousand three hundred seventy one
180	-	-	-	-	-	-	-	-	-	-	-	8,779	9,647	10,944	12,236	13,095	13,952	15,235
190	-	-	-	-	-	-	-	-	-	-	-	-	-	-	12,927	13,835	14,742	16,098
200	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	14,575	15,531	16,961
210	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	15,315	16,320	17,824
220	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	16,055	17,109	18,687
240	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
250	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

End of table 2

The outer diameter of pipes, mm	Theoretical weight of 1 m pipe, kg, at wall thickness, mm
	4,0	4,5	5,0	5,5	6,0	6,5	7,0	7,5	8,0	8,5	9,0	9,5	10,0	11,0	12,0	14,0	16,0	18,0
80	7,497	8,379	9,248	10,105	10,95	11,731	12,602	13,410	14,205	14,988	15,759	16,517	17,263	18,718	20,124	-	-	-
83	7,793	8,712	9,618	10,512	11,394	12,263	13,120	13,965	14,797	15,617	16,425	17,220	18,003	19,532	21,012	-	-	-
85	7,990	8,934	9,865	10,783	11,690	12,584	13,465	14,334	15,191	16,036	16,868	17,688	18,496	20,074	21,603	-	-	-
89	8,385	9,378	10,358	11,326	12,281	13,225	14,156	15,074	15,981	16,375	17,756	18,626	19,483	21,160	22,787	-	-	-
90	8,484	9,489	10,481	11,461	12,429	13,385	14,328	15,259	16,178	17,084	17,978	18,360	19,729	21,431	23,083	-	-	-
95	8,977	10,043	11,098	12,140	13,169	14,187	15,191	16,184	17,164	18,132	19,088	20,031	20,962	22,787	24,563	-	-	-
100	9,470	10,598	11,714	12,818	13,909	14,938	16,055	17,109	18,151	19,180	20,198	21,203	22,192	24,144	26,043	29,692	33,145	36,400
102	9,667	10,820	11,961	13,089	14,205	15,308	16,400	17,479	18,545	19,600	20,642	21,671	22,689	24,686	26,634	30,383	33,934	37,288
103	10,259	11,486	12,701	13,903	15,093	16,269	17,436	18,589	19,729	20,357	21,973	23,077	24,168	26,314	28,410	32,455	36,302	39,952
110	10,456	11,708	12,947	14,174	15,389	16,590	17,781	18,959	20,124	21,277	22,417	23,546	24,662	26,856	29,002	33,145	37,091	40,839
120	11,443	12,818	14,180	15,531	16,868	18,193	19,507	20,308	22,097	23,373	24,637	25,388	27,128	29,569	31,961	36,598	41,037	45,278
130	12,429	13,928	15,413	16,887	18,348	19,796	21,233	22,658	24,070	25,469	26,856	Twenty eight thousand two hundred thirty one	29,504	32,282	34,921	40,050	44,983	49,718
140	13,416	15,037	16,646	18,243	19,828	21,400	22,960	24,507	26,043	27,565	29,076	30,574	32,060	34,995	37,880	43,503	48,928	54,157
150	14,402	16,147	17,880	19,600	21,308	23,003	24,686	26,357	28,016	29,662	31,295	32,917	34,526	37,707	40,839	46,955	52,874	58,596
160	15,389	17,257	19,113	20,956	22,787	24,606	26,412	28,207	29,988	31,758	33,515	35,260	36,992	40,420	43,799	50,408	56,820	63,035
170	16,375	18,367	20,346	22,312	24,267	26,209	28,139	30,056	31,961	33,854	35,733	37,603	39,458	43,133	46,758	53,861	60,766	67,174
180	17,362	19,476	21,579	23,669	25,747	27,812	29,865	31,906	33,934	35,950	37,954	39,945	41,925	45,346	49,713	57,313	64,712	74,913
190	18,348	20,586	22,812	25,025	27,226	29,415	31,591	33,755	35,907	38,046	40,174	42,288	44,391	48,558	52,677	60,766	68,658	76,352
200	19,335	21,696	24,045	26,332	23,706*	31,013	33,313	35,605	37,880	40,143	42,393	44,631	46,857	51,271	55,636	64,218	72,603	80,791
210	20,321	22,806	25,278	27,733	30,136	32,621	35,044	37,455	39,853	42,239	44,613	46,974	49,323	53,984	58,596	67,671	76,549	85,230
220	21,308	23,915	26,511	29,094	31,665	34,224	36,770	39,304	41,826	44,335	46,832	49,317	51,789	56,697	61,555	71,124	80,495	89,669
240	-	26,135	28,977	31,307	34,625	37,430	40,223	43,003	45,772	48,528	51,271	54,002	56,721	62,122	67,474	78,029	88,387	98,547
250	-	27,244	30,210	33,164	36,104	39,033	41,949	44,353	47,744	50,624	53,491	56,345	59,183	64,335	70,433	31,431	92,333	102,986
Theoretical weight of 1 m pipe is given for reference. Note — a Theoretical weight of 1 m pipe, kg, is calculated by the formula (1). * Consistent with the original. — Note the manufacturer’s database.

5.5 Examples of symbols pipes

Examples of symbols:

Cold-deformed pipes (X), outer diameter 32 mm, normal precision, with a wall thickness of 4.5 mm normal precision, measuring length 5000 mm of steel grade 20 according to GOST 33229−2015:

Tube — X — 324,55000 — 20 — GOST 33229−2015

Hot-deformed pipes (D), an outer diameter of 168 mm high accuracy, with a wall thickness of 10.0 mm high precision, with length a multiple of 1500 mm, of steel grade 20 according to GOST 33229−2015:

Pipe — G — 168п10p1500кр — 20 — GOST 33229−2015

Cold-deformed pipes (X), of an external diameter of 32 mm of high accuracy, with a wall thickness of 4.5 mm normal precision, length 6000 mm, of steel grade 09G2S, GOST 33229−2015:

Tube — X — 32P4,56000 — 09G2S GOST 33229−2015

Cold-deformed pipes (X), an inner diameter of 32 mm, normal precision, with a wall thickness of 3.5 mm the usual precision of random length, of steel 10G2 GOST 33229−2015:

Tube — X — вн323,5 — 10G2 GOST 33229−2015

Cold-deformed pipes (X), of an external diameter of 36 mm, normal precision, with internal diameter 32 mm normal precision, measuring length 5000 mm of steel grade 20 according to GOST 33229−2015:

Tube — X — 36вн325000 — 20 — GOST 33229−2015

5.6 the Information provided in the order

5.6.1 When ordering pipe, manufactured in accordance with this standard, the customer must specify in the order the following required information:

a) designation of this standard;

b) pipes: hot-or cold-formed (see 5.1);

in) steel grade (see 5.2);

g) sizes of pipes;

d) accuracy of production (see 5.3, 6.6.1);

e) length of the pipe (see 5.4).

g) method of nondestructive flaw detection monitoring (see 6.8.2).

5.6.2 If necessary, the customer may specify in the order the following additional requirements:

a) the manufacture of pipes dimensional length, with allowance for the cut, not stipulated in this standard (see 5.4);

b) production of steel pipes with restriction in the chemical composition of the mass fraction of sulfur and phosphorus (see 6.2.2);

C) the type of technological tests for pipes with outside diameter of less than 108 mm, wall thickness more than 9 mm (see 6.5.1);

g) flattening test on pipes with diameter up to 60 mm, inclusive, with a wall thickness of not more than 15% of the outer diameter (see 6.5.2);

d) delivery of pipes with a wall thickness of not less than 5.0 mm with an outer chamfer (see 6.9.2);

e) delivery of pipes with outer diameter of 108 mm and less, with safety fittings on the ends of the pipe (see 6.10.3);

g) control chemical composition of metal pipes (see 8.3, table 10);

I) issuance of a document of acceptance inspection, not covered by this standard (see 8.5).

5.6.3 If necessary between the manufacturer and the customer can be agreed and specified in the order, the following additional requirements:

a) the manufacture of pipes intermediate sizes not specified in tables 1 and 2 (see 5.3);

b) production of pipes with size more than specified in this standard, according to GOST 32528 (see 5.3);

C) the manufacture of pipes internal diameter and wall thickness (see 5.3, 6.6.1);

g) the manufacture of pipes inner and outer diameter (see 5.3, 6.6.1);

d) the manufacture of pipe lengths and dimensional length not covered in this standard (see 5.4);

e) the manufacture of pipes with standard yield strength of pipe metal at 350 °C (see 6.3.2);

g) the manufacture of pipes with standard of the yield strength of the metal pipe at a temperature of 400 °C and the harmonization of standards (see 6.3.2);

I) the manufacture of pipes with wall thickness of 12.0 mm or more, with rationing of the impact toughness of metal of pipes at one or more temperatures: minus 20 °C, minus 40 °C or -60°C (see 6.3.2);

K) the manufacture of pipes with wall thickness over 10,0 mm, with regulation of the hardness of the metal pipe (see 6.3.2);

l) manufacture of tubes other limit deviations for outer, inner diameter and pipe wall thickness (see 6.6.1);

m) the manufacture of pipe lengths and dimensional length, with a reduced or increased limit deviations of length (see 6.6.2);

n) the manufacture of pipes with standard General straightness and alignment rules (see 6.6.4);

p) applying temporary conservation cover (see 6.10.4);

R) packing the pipes into materials with volatile corrosion inhibitors (see 6.10.5);

C) delivery of pipes with optional marking (see 6.10.6);

t) delivery tubes in a special package (see 6.10.7);

u) the control of wall thickness throughout the length of the pipe by ultrasonic method (see 8.3, table 10);

f) the dimensions of longitudinal rectangular risks for non-destructive radiographic inspection of pipes with wall thickness of 2.0 mm or less internal diameter of 10 mm and less (see 9.13, table 12).

6 Technical requirements

6.1 Method of production

6.1.1 For the production of pipes to be used rolled, forged or concast billets. Allowed the use of ingots melted using electroslag remelting.

6.1.2 Pipes shall be seamless and manufactured by hot or cold deformation.

6.1.3 Pipe must be subjected to normalization at temperatures specified in table 3.

Allowed the normalization of the hot-deformed pipes with heating rolling temperature end of rolling is not below 890 °C.

Allowed normalization accelerated sprayer or fan cooling. Be conducted after normalization, high-temperature tempering.


Table 3 — Temperature normalization

Temperature normalization °C (±10°C)
under normal heating	during fast heating
900−950	900−1050

6.2 Chemical composition

6.2.1 the Chemical composition of steel grades 10 and 20 should correspond to GOST 1050, steel 10G2 GOST 4543, steel 09G2S GOST 19281.

6.2.2 At the request of the customer the pipes are made of steel with a restriction in the chemical composition of the mass fraction of sulphur not more than 0,020%, phosphorus not more than 0,025%.

6.2.3 the Value of carbon equivalent for the steel grades 09G2S and 10G2, calculated according to the following formula, shall not exceed 0,43%*:
___________________
* The text of the document matches the original. — Note the manufacturer’s database.

, (2)

where, Mn is the mass fraction of carbon and manganese, %.

6.3 Mechanical properties

6.3.1 Mechanical properties of pipe metal at room temperature shall be as specified in table 4.


Table 4 — Mechanical properties of pipe metal at room temperature

Steel grade	Tensile strength , N/mm	Yield strength, N/mm	Elongation,%	The relative narrowing , %	Impact toughnessKCV, j/cm
		not less than
10	353−550	215	24	55	40
20	410−590	245	21	45	40
10G2	Not less than 421	265	21	50	40
09G2S	At least 470	265	21	50	Forty
In the determination of mechanical properties on samples in the form of a segment or of a segment of pipe of total cross section allowed the reduction of elongation at three units from the established norm, the relative narrowing of not normalized. Impact strength normalized for pipes with a wall thickness of 12.0 mm or more.

6.3.2 by agreement between the manufacturer and the customer pipes manufactured with one or more additional requirements for mechanical properties specified in table 5.


Table 5 — Additional requirements for mechanical properties of pipe metal

Steel grade	Yield strength , N/mm, at a temperature		Impact toughnessKCV, j/cmat a temperature of			Brinell hardness number, HB
	350°C	400°C	minus 20°C	minus 40 °C	minus 60 °C
	not less than					no more
10	130		25			137
20	160		25	156
10G2	180		25	197
09G2S	180		25	197
Impact strength normalized for pipes with a wall thickness of 12.0 mm or more. The normalized hardness for pipes with a wall thickness of more than 10.0 mm. The norm is determined by agreement between the manufacturer and the customer.

6.4 Macrostructure

In the macrostructure of the metal pipes with a wall thickness of 12.0 mm and more are not allowed cracks, rolled Pousada the porosity, subcortical bubbles of gas, bloat peel, delamination, flocs, foreign metal and non-metallic inclusions, visible without using the magnifying devices.

The manufacturer can ensure that the macrostructure of the metal pipes to the specified requirements without carrying out control on the basis of the technology of production of pipes.

6.5 Technological properties

6.5.1 Tubes, depending on outer diameter and wall thickness to withstand one of the technological tests listed in table 6.

If the table 6 for the order of the outer diameter and wall thickness of tubes are two possible types of tests required test indicated by the customer, and in the absence of such specification, the manufacturer chooses.

6.5.2 According to customer’s requirement pipe external diameter up to 60 mm, inclusive, with a wall thickness of not more than 15% of the outer diameter to withstand the test of flattening.


Table 6 — technological tests of tubes

External diameter, mm	Wall thickness, mm	Type of test
Up to 60 incl.	To 9 incl.	Bend or distribution
	9 more	Bend
SV. 60 to 108 incl.	To 9 incl.	Distribution or flattening
	More than 9 but not more than 15% of the outer diameter	Flattening
	More than 9 and more than 15% of the outer diameter	Bend
SV. 108 to 273 mm incl.	Not more than 15% of the outer diameter	Flattening
	More than 15% of the outer diameter	Bend
SV. 273	Any	Bend

6.6 maximum deviations of diameter, wall thickness, length and geometric tolerances

6.6.1 maximum deviations of external diameter and wall thickness shall not exceed the limit deviation specified in tables 7 and 8.

Maximum deviations of the internal diameter of the pipe shall not exceed extreme deviations are set to equal the outer diameter in tables 7 and 8.

By agreement between manufacturer and customer can be set different tolerances for inner and outer diameter and wall thickness pipes.


Table 7 — Limit deviations of dimensions of hot-deformed pipes

The size of the pipes, mm	Maximum deviations in precision manufacturing
	normal	high
The outer diameter
To 50 incl.	±0.5 mm	-
SV. 50 to 95 incl.	±1,00%	±0,75% (but not less than ±0.5 mm)
SV. 95 to 140 incl.	±1,00%	±0,80%
SV. 140 to 245 incl.	±1,00%	±0,90%
SV. 245 to 299 incl.	±1,25%	±0,90%
SV. 299	±1,25%	±1,00%
Wall thickness outer diameter up to 108 mm incl.
To 7.0 incl.	+12,5% -15,0%	±12,5%
SV. 7.0 to 15.0 incl.	+12,5% -15,0%	+10,0% -12.5 percent
SV. 15,0	±12,5%	±10,0%
The wall thickness of the outer diameter 108 St. to 299 mm incl.
All	+12,5% -15,0%	±12,5%
Wall thickness outer diameter 299 mm St
To 15.0 incl.	+12,5% -15,0%	-
SV. 15,0	±12,5%	-

Table 8 — Limit deviations of dimensions of cold-drawn pipes

The size of the pipes, mm	Maximum deviations in precision manufacturing
	normal	high
The outer diameter
To 10 incl.	±0.15 mm	-
SV. 10 to 30 incl.	±0.30 mm	-
SV. 30 to 50 incl.	±0.40 mm	±0,60% (but not less than ±0.25 mm)
SV. 50 to 120 incl.	±0,80%
SV. 120	±0,80%	±0,75%
Wall thickness
And 1.0 incl.	±0,12 mm	-
SV. 1.0−5.0 incl.	±10,00%	-
SV. 5,0	±8,00%	-

6.6.2 Limit deviations of length of pipes lengths and dimensional length should not exceed the values given in table 9.

By agreement between the manufacturer and the customer pipe lengths and dimensional length, manufactured with a reduced or increased limit deviations of length.


Table 9 — Limit deviations of the length of the pipes

Dimensions are in millimeters

Length of tubes, m	Maximum deviations at the outer diameter
	to 168 incl.	St. 168
To 6.0 incl.	+10	+15
SV. Of 6.0 to 12.0 incl.	+15	+15
SV. 12,0	+25	+25

6.6.3 Ovality and thickness variation should not print the diameter and wall thickness of pipes for valid values for a given precision of manufacture.

6.6.4 pipe Deviation from straightness on any segment with a length of 1 m must not exceed:

— for pipes with external diameter up to 10 mm inclusive to 2.0 mm;

— for pipes with external diameter over 10 mm to 1.5 mm.

If between the manufacturer and the customer agreed to manufacture pipes with sizes churchyard 32528, over the specified in this standard, the deviation of the pipe from straightness on any segment with a length of 1 m shall be those specified in GOST 32528.

Between the manufacturer and the customer may be agreed upon requirements for General straightness of pipes.

6.7 surface Quality

6.7.1 On the outer and inner pipe surface imperfections are not allowed, deducing the diameter or wall thickness for valid values and also the following defects: cracks, slivers, flaws, and sunsets.

6.7.2 remove imperfections and defects of solid abrasive cleaning, grinding, polishing, boring or turning, provided that they do not derive the diameter and wall thickness for valid values.

Remove imperfections and defects local abrasive cleansing provided that it does not display wall thickness for valid values. The local sweep should move smoothly into the adjacent surface of the pipe.

The repair of pipes by welding is not allowed.

6.7.3 On the surface of the pipe permitted individual imperfections: dents, risks, rabiza, other imperfections caused by method of production, and traces of Stripping if they do not take wall thickness for valid values.

On the surface of the pipes allowed traces of loose scale and technological lubrication, preventing the surface quality control.

6.8 the Continuity of metal

6.8.1 Pipe shall withstand the hydrostatic test pressure is calculated by the formula specified in GOST 3845, when permitted by the tension in the pipe wall equal to 40% of the minimum value of the time resistance for a given grade of steel, but not greater than 20 MPa.

The manufacturer may guarantee the ability of pipes to withstand the test pressure without hydrostatic testing. The ability of the pipe to resist the hydrostatic pressure test is ensured by the technology of production of pipes.

6.8.2 Pipe must undergo non-destructive defectoscopy one of the methods: ultrasonic, magnetic or eddy current, is specified in the order.

6.9 Finishing of pipe ends

6.9.1 the pipe Ends should be square-cut and cleaned of burrs. When deburring allowed the formation of the chamfer.

6.9.2 According to customer’s requirement on the ends of pipes with a wall thickness of 5.0 mm and more must be done external chamfer at an angle of 35°+5° to-end pipe with end ring width of from 1 to 3 mm To ensure that the width of the end rings allowed the formation of the inner chamfer.

6.10 Labeling and packaging

6.10.1 General requirements for marking and packaging of pipes should correspond to GOST 10692 with the additions given in 6.10.2−6.10.5.

6.10.2 Marking of pipes with a diameter of 273 mm and more in addition to the basic marking must contain:

— number of melt;

— the batch number;

room tubes;

— the designation of this standard;

a sign of service quality.

6.10.3 the requirement of the customer, the ends of each pipe with a diameter of 108 mm and less shall be tightly closed with a special safety items (plugs, stoppers, caps).

6.10.4 agreed between the manufacturer and the customer on the pipe to be applied in temporary preservative coating that provides surface protection of pipes against corrosion during transport indoor transport and storage in the dry (which is allowed in an unheated) rooms up to 6 months.

6.10.5 agreed between the manufacturer and the customer, the pipes should be Packed in materials with volatile corrosion inhibitors for surface protection of pipes against corrosion for the period of transportation and storage of OCTG, provided transportation covered trucks and stored in dry premises (allowed in an unheated) rooms up to 6 months.

6.10.6 By agreement between manufacturer and customer can be performed by the additional marking pipes.

6.10.7 By agreement between manufacturer and customer can be made special packing tubes.

7 safety Requirements and environmental protection

Steel pipe fireproof, explosion-proof, elektrobezopasen, non-toxic, do not represent a radiation hazard and do not provide harm to the environment and human health during test, storage, transportation, operation and disposal.

8 Rules of acceptance

8.1 Pipe take parties.

The party should consist of pipes of the same diameter, same wall thickness, must be of the same bottoms, same grade of steel, one kind of heat treatment.

8.2 the Number of tubes in the party should be.:

— 400 — for pipes with external diameter up to 76 mm inclusive;

— 200 — for pipes of an external diameter exceeding 76 mm.

8.3 To check the conformity of the pipes with the requirements of this standard, the manufacturer conducts acceptance tests.

Types of control and testing standards selection of pipes, samples and specimens from the party or briefs shall be as specified in table 10.


Table 10 — Types of inspection and testing, selection norms

Test status	Kind of test or control	The volume control or test
		Rule selection of pipes from the party	The rate of sampling from each selected pipe
Mandatory	Control of the chemical composition and carbon equivalent (bucket sample)	1 sample	-
	Tensile test at room temperature	2	1
	Testing the impact strength at room temperature	2	3
	Control of macrostructure	2	1
	Technological test (for the distribution, flattening, bend)	2	1
	Control of diameter, wall thickness, length	100%	-
	Control of ovality and thickness variation		-
	Alignment control	100%	-
	Visual inspection of surface quality	100%	-
	Hydrostatic testing	100%
	Non-destructive defectoscopy	100%	-
	Control trim ends		-
Additional	Control chemical composition of metal pipe	3	1
	Testing the impact strength at a temperature of minus 20 C, minus 40 °C or -60°C	2	3 for each test temperature
	Tensile test at 350 °C and 400°C	2	1 for each test temperature
	Hardness control	2	1
	Test flattening of pipes with diameter up to 60 mm incl.	2	1
	Control of geometrical parameters of the chamfer		-
	The control of wall thickness by ultrasonic method	100%	-
Allowed acceptance according to the manufacturer steel. According to the technical documentation of the manufacturer. Provided according to diameter and wall thickness requirements.

8.4 Upon receipt of unsatisfactory results, at least one of the types of sample tests for him to repeat the test at twice the number of pipes selected from the same batch, except the pipe does not pass test. Satisfactory results of re tests spread to the entire party.

If unsatisfactory results of repeated testing at least one of the samples of all the pipes of the party subjected to the test, except for pipe that does not pass tests or are subjected to processing.

Redesigned tube to impose acceptance as a new party.

Allowed re-heat treatment (up to three) rejected lot of pipes from presenting them for acceptance as a new party. Vacation is not considered as reheat treatment.

8.5, adopted On party tubes draw up a document on acceptance inspection: certificate of technical control «3.1» according to GOST 31458.

At the request of the customer issue other documents on acceptance inspection according to GOST 31458.

The document on acceptance inspection must contain the following information:

— the designation of this standard;

— types of pipes: hot or cold;

— pipe dimensions, accuracy of manufacture;

— length and length in mm;

— steel grade;

— chemical composition of the steel;

— carbon equivalent (for steel grades 09G2S and 10G2);

— document symbol on billets and the name of the manufacturer;

— the batch number;

— number of melt;

— information about the performed heat treatment, including heating, rolling, with the range of temperature normalization in accordance with table 3;

— the results of all tests and monitoring, including additional;

— information on the conduct of non-destructive flaw detection control as to the method of control;

— information on the conduct hydrostatic testing or guarantee the ability of pipes to withstand a hydrostatic test pressure;

— guarantee the compliance of the macrostructure.

9 Methods of inspection and testing

9.1 Chemical composition of steel determined by chemical analysis according to GOST 12359, GOST 22536.0 to GOST 22536.11, GOST 27809. Samples are taken according to GOST 7565.

Allowed to apply other methods of analysis, providing the necessary accuracy corresponding to the specified standards.

The differences in the evaluation of the chemical composition of the used methods of chemical analysis.

9.2 tensile Test is carried out at room temperature according to GOST 10006, at a temperature of 350 °C and 400 °C according to GOST 19040 on the longitudinal proportional samples.

9.3 the Test for impact strength is carried out according to GOST 9454 longitudinal samples of type 11.

Impact toughness is defined as the arithmetic average of the results of tests of three samples. One unit permitted reduction in impact toughness is not more than 10 j/cmfrom the established norm.

9.4 hardness Control is carried out according to GOST 9012. Allowed to control the hardness of the samples is designed to test tensile or impact strength.

9.5 are allowed to control mechanical properties non-destructive methods for the relevant documentation. The differences in the evaluation of test results carried out by the methods specified in 9.2 to 9.4.

9.6 Control of the macrostructure of metal is carried out according to GOST 10243 on ProTrainer cross ring sample.

9.7 Test bend is carried out according to GOST 3728.

9.8 expansion Testing is carried out according to GOST 8694 on the mandrel with the taper angle 12° to increase the outer diameter of the pipe to the value specified for each grade of steel in table 11.

Carrying out tests on the mandrel with a taper angle of 30°.


Table 11 — Values distribution

Steel grade	The increase in external diameter of a pipe, %, wall thickness, mm
	up to 4.0 incl.	St. 4,0
10	10	6
20	8	5
10G2	8	5
09G2S	8	5

9.9 Test for flattening is carried out according to GOST 8695 to obtain sludinajumi between surfaces distance, mm calculated by the formula:

, (3)

where  — coefficient of deformation, equal 0,09 — for steel of grade 10 and 0.08 for the other steel grades.

9.10 the diameter of the pipes controlled by a caliper according to GOST 166, micrometer according to GOST 6507 or caliber-clip 2216 GOST, GOST and GOST 18360 18365.

The measurement of the outer diameter in places local Stripping of defects and imperfections is not carried out.

Inner diameter caliber control according to GOST 2015 or caliber of the tube graveyard 14810.

The wall thickness of the pipe is controlled micrometer according to GOST 6507, flat santomera or thickness gauge according to GOST 11358 both ends of the pipe.

By agreement between the manufacturer and the customer control of the wall thickness is carried out by ultrasonic technique along the entire length of pipe at the manufacturer’s documentation.

The deviation from straightness of a pipe segment with a length of 1 m is measured with a straight edge according to GOST 8026 and a set of probes according to the normative document.

The deviation from straightness over the entire length of the pipe is determined according to GOST 26877.

Control the length of the pipes is carried out the measuring tape according to GOST 7502.

Control of geometrical parameters of the chamfer is carried out according to the manufacturer’s documentation.

Allowed to control other measuring instruments, metrological characteristics which provide the required measurement accuracy.

If there is disagreement in the evaluation of the measurement results is carried out according to specified standards.

9.11 surface Quality of pipes is controlled visually without the use of magnifying instruments.

The depth of the imperfections and areas of Stripping is determined by the manufacturer’s documentation.

9.12 Hydrostatic testing carried out according to GOST 3845 with aging pipes under pressure of not less than 10 s.

9.13 non-destructive flaw detection testing is carried out:

— ultrasonic method for the manufacturer’s documentation, developed in accordance with the requirements of GOST 17410;

— eddy-current method according to the manufacturer’s documentation;

— magnetic method according to the manufacturer’s documentation.

The setting of the sensitivity of the apparatus, corresponding to the level of culling, carried out according to standard sample with artificial defects, the location, orientation, type, and dimensions of which are listed in table 12.

10 Transportation and storage

Transportation and storage of pipes is carried out according to GOST 10692.

11 manufacturer’s Warranty

The manufacturer guarantees the conformity of the pipes with the requirements of this standard subject to the rules and regulations of transportation, storage tubes and matching conditions purpose pipes.


Table 12 — Location, orientation, type and size of artificial defects

Control method	The type and size of pipes	The location, orientation, type and size of artificial defect
		Longitudinal rectangular risk				Radial drill hole
		Surface	Depth	Length, mm (±10%)	Width, mm	Diameter, mm
Ultra- the sound method	Gracidea- armirovanye, 5	The outer and inner	(12,50±1.25) is% S, but not less than 0.5 mm and not more than 2.0 mm	25	Not more than 1.5	-
	Gracidea- armirovanye, 5		(20,0±2,0)% S, but not less than 1.0 mm and not more than 3.0 mm	25	Not more than 1.5	-
	Holodnogo- armirovanye, 5		(10,0±1,0)% S, but not less than 0.3 mm and not more than 2.0 mm	25	Not more than 1.5	-
	Holodnogo- armirovanye, 5		(15,0±1,5)% S, but not less than 0.5 mm and not more than 2.5 mm	25	Not more than 1.5	-
Wireto- copy method:
equipment tion with clearance converted the user	Any	-	-	-	-	2,0±0,2 at20 3,0±0,2 at 2060 4,0±0,2, with 60127 5,0±0,2, with127
equipment tion with patch converted the user	Any	Exterior	(12,50±1.25) is% S, but not less than 0.3 mm and not more than 2.0 mm	25	Not more depth	-
Magnetic method	Any	Exterior	(12,50±1.25) is% S, but not less than 0.3 mm and not more than 2.0 mm	25	Not more than twice the depth, but not more than 1.0 mm	2,0±0,2 at20 3,0±0,2 at 2060 4,0±0,2, with 60127 5,0±0,2, with127
For pipes with wall thickness of 2.0 mm or less internal diameter of 10 mm or less, the dimensions of longitudinal rectangular risks determined by agreement between the manufacturer and the customer. The standard sample should be performed three holes that are offset relative to each other around the circumference of the sample at 120°. The distance between the holes in the longitudinal direction should be sufficient to make them independent and clearly distinguishable indications. Allowed the use of a standard sample with one hole. While adjusting the equipment is carried out in dynamic mode, standard flowing the sample through the equipment in the hole position 0°, 90°, 180° and 270°. Control is carried out while adjusting the sensitivity of the apparatus to a single type of artificial defect: longitudinal risk of a rectangular or radial drilled hole.