TU 14-1-927-74
THE MINISTRY OF FERROUS METALLURGY OF THE USSR
INV. No. 020−1026а EKZ no.
STATE THE STANDARDS COMMITTEE 19.06.74 No. 120063 Agreed: /Stroganov, G. B./ «14».05.74 |
UDC 669.14−410.2−122.2 Group B34 Claim: Chief engineer Glavspetsstroi /A V. S. Kultygin/ 28.02.74 |
Cold-rolled strips of heat-resistant steels and alloys
Specifications
THAT 14−1-927−74
(Instead CMTU 1−96−67)
The introduction with According to: Chief engineer of the plant «Hammer and sickle» /Popov E. F./ Head. laboratory standardization /Kolyasnikova R. I./ |
Developed by: Head of laboratory /Berenson VF/ |
1974
Sheet 1
THAT 14−1-927−74
These specifications apply to cold rolled strip of heat-resistant steels and alloys.
1. Assortment
1.1. Tape is produced with thickness from 0.2 to 1.2 mm, width 400 mm band Dimensions shall be as specified in GOST 4986−70 specified in the order.
1.2. The allowable deviation in size of the tape shall not exceed those specified in GOST 4986−70.
1.3. Warpage of the strip should not exceed under GOST 4986−70.
1.4. Tape is supplied in rolls mill. The distance between welds in a coil shall not be less than 3 m.
By agreement is possible to supply the tape, welded from shorter strips.
2. Technical requirements
2.1. Chemical composition of steels and alloys shall be those specified in table. 1.
2.2. Tape is supplied in a heat treated (soft) state. Recommended mode of heat treatment of the tape are shown in table. 2.
2.3. The mechanical properties of the tape as supplied shall be as specified in table. 3.
Sheet 2
THAT 14−1-927−74
| Steel grade, alloy | The content of elements, % | ||||||||||||
| Carbon | Manganese | Silicon | Glands | Bor | Sulfur | Phosphorus | Chrome | Nickel | Aluminium | Titan | Tungsten | Other items | |
| no more | |||||||||||||
| HN77TYUR (EI437BU) | 0,07 | 0,4 | 0,6 | 1,0−4,0 | 0,01 | 0,007 | 0,015 | 19,0−22,0 | Basis | 0,6−1,0 | 2.4 to 2.8 | - | Lead not more than 0.001, cerium is not more than 0.02 |
| KHN75MBTJU (ЭИ602) | 0,1 | 0,4 | 0,8 | 3,0 | - | 0,012 | 0,020 | 19,0−22,0 | Basis | 0,35−0,75 | 0,35−0,75 | - | Niobium is 0.9 to 1.3, molybdenum 1,8−2,3 |
| KHN38VT (ЭИ703) | 0,06−0,12 | 0,7 | 0,8 | Basis | - | 0,02 | 0,030 | 20,0−23,0 | 35,0−39,0 | n. b. 0,50 | 0,70−1,2 | 2.8 to 3.5 | Cerium is not more than 0.05 |
| KHN60VT (ЭИ868) | 0,10 | 0,5 | 0,8 | 4,0 | - | 0,013 | 0,013 | 23,5−26,5 | Basis | n. b. 0,50 | 0,3−0,7 | 13,0−16,0 | - |
| Х12Н20Т2Р (ЭИ696А) | 0,10 | 1,0 | 1,0 | Basis | 0,008 | 0,020 | 0,030 | 10,0−12,5 | 18,0−21,0 | n. b. 0,50 | Of 2.3−2.8 | - | - |
Notes:
1. Allowed the presence of residual molybdenum in the alloy ЭИ868 not more than 1.5%, the steel ЭИ703 no more than 0.8%.
2. Allowed presence of residual copper in steel is not more than 0.2%, in Nickel-based alloys is not more than 0.07%
3. Boron and deoxidizers (cerium, calcium, barium) is introduced into the metal by calculation and by chemical analysis is not defined.
4. By agreement of the parties of the steel supply ЭИ696А with estimated boron 0,003−0,005%.
5. At the request of the consumer ЭИ703 steel instead of titanium introduced niobium in the range of 1.2−1.7 percent
6. In the alloy EI437BU presence of antimony, tin, bismuth, arsenic within 1st point of the scale spectral analysis.
Sheet 3
THAT 14−1-927−74
Table 2
| Steel grade, alloy | The recommended treatment |
| HN77TYUR (EI437BU) | Quenching with 1080−1120° in water or air |
| KHN75MBTJU (ЭИ602) | Quenched from 1050−1080° in water or air |
| KHN38VT (ЭИ703) | Quenching with 1100−1140° in water or air |
| KHN60VT (ЭИ868) | Quenching with 1150−1200° in water or air |
| Х12Н20Т2Р (ЭИ696А) | Quenching with 1020−1060° in water or air |
Table 3
| Steel grade, alloy | Mechanical properties | |
| Rupture strength, σ0 kgf/mm2, not more | Relative elongation δ5, %, not less | |
| HN77TYUR (EI437BU) | 90 | 30 |
| KHN75MBTJU (ЭИ602) | 95 | 40 |
| KHN38VT (ЭИ703) | 85 | 35 |
| KHN60VT (ЭИ868) | 100 | 35 |
| Х12Н20Т2Р (ЭИ696А) | 75 | 30 |
Sheet 4
THAT 14−1-927−74
2.4. The tape comes with etched and bleached surfaces. The tape surface should be clean, without oxides and traces of Pererva. On both sides of the tape allowed the individual crayons scratches, nadava from the rolls, nicks and gentle Stripping with the depth of the defects, not exceeding ½ the length limit deviation on thickness. The presence of a common light rabini depth not exceeding ¼ of the maximum deviations in thickness and not bringing the tape beyond the minimum thickness, not a rejection symptom. The belt can have a matte surface with different shades and a gray coating after etching, and the streak in the form of shades.
3. Acceptance rules, test methods, marking, packaging
3.1. All acceptance rules, test methods, marking, packaging, documentation must conform to the GOST 4986−70 with the following additions: test menswallet produced by th GOST 1497−61, in parallel, to accumulate the data, performed the test according to GOST 11701−66 on short samples having a width of 12.5 mm.
3.2. Sutunce comes in CMTU 1−460−68: for steel grade EI437BU with II-nd group of the surface, for steel ЭИ696А — IV-Oh group of the surface. The billet comes in CMTU 1−459−68 in Ø125 mm for steel ЭИ602 IV-Oh group of the surface, for steel ЭИ702 with II-nd group of the surface; for the alloy ЭИ868 — in the form of a strip 60х140 mm with IV-th group of the surface.
4. The order of payment for products.
4.1. Prices are set according to the application.
Joined:
Head. the technical Department of TSNIICHM /Kaplan A. S./
-5-
The Annex to THAT 14−1-927−74
Chemical composition and technical requirements on strip steel grades: HN77TYUR (EI437BU), KHN75MBTJU (ЭИ602), KHN38VT (ЭИ703), ХН69В (ЭИ868, ВИ98), and Х12Н20Т2Р (ЭИ696А) TU 14−1-927−74 fully complies with the composition and technical requirements on the same brand for CMTU 1−96−67.
Therefore, the wholesale price of the above brand are set at the level approved in Supplement No. 3 to the price list 01−05, p. 4, namely:
| Tape dimensions in mm | Wholesale price, roubles per ton ribbon of steel grades: | ||||
| HN77TYUR (EI437BU) | KHN75MBTJU (ЭИ602) | KHN38VT (ЭИ703) | ХН60В (ЭИ868, ВИ98) | Х12Н20Т2Р (ЭИ696А) | |
| 0,2x400 | 10290 | 11420 | 4400 | 12320 | 3610 |
| 0,3х400 | 9600 | 10930 | 4050 | 11800 | 3200 |
| 0,4x400 | 9170 | 10660 | 3890 | 11520 | 2990 |
| 0,5х400 | 9040 | 10400 | 3780 | 11250 | 2960 |
| 0,6х400 | 8700 | 10210 | 3750 | 11050 | 2710 |
| 0,7х400 | 8650 | 10110 | 3720 | 101910 | 2700 |
| 0,8х400 | 8610 | 10070 | 3690 | 10870 | 2670 |
| 0,9х400 | 8350 | 9820 | 3670 | 10620 | 2480 |
| 1,0х400 | 8320 | 9730 | 3640 | 10530 | 2450 |
| 1,1х400 | 8290 | 9690 | 3630 | 10490 | 2400 |
| 1,2x400 | 8290 | 9690 | 3630 | 10490 | 2400 |
Supplier: The plant «Hammer and Sickle» |
User: Zam. chief of VIAM /Sklyarov N. M./ |
Agreed:
Head. Department cost
profitability and pricing of ICM (Kaplanov V. I.)
THE MINISTRY OF FERROUS METALLURGY OF THE USSR
STATE THE STANDARDS COMMITTEE 11.5.78 No. 125432 Agreed: G. B. Stroganov «21».02.1978 |
UDC Group B34 Claim: Chief engineer VPO V. S. Kultygin «31».03.1978 |
COLD-ROLLED STRIPS OF
HEAT RESISTING STEELS AND ALLOYS
Specifications
THAT 14−1-927−74
Amendment No. 1
The introduction:
1. The validity of technical conditions is extended to 01.01.83year.
2. On the ribbon, steel grade KHN75MBTJU (ЭИ602) provided with the state seal of Quality, mechanical properties in the delivery condition shall be as follows:
| Rupture strength, σin kgf/mm2 | Relative elongation, δ10, % |
| not more than 90 | not less than 40 |
3. Section 3 «acceptance Rules, test methods, marking, packaging," add paragraph 3.3 as follows:
«When you assign the metal quality Mark marking and documentation shall be in accordance with GOST 1.9−67».AGREED: Chief engineer of the plant Head. laboratory standardization |
DEVELOPED by: Zam. chief of VIAM V. M. Sklyarov «15».11.1978 V. F. Berenson |
Was in Tsniichermet:
Head. Department of standardization of ferrous metallurgy L. V. Meander
THE MINISTRY OF FERROUS METALLURGY OF THE USSR
AGREED: A. G. Bratukhin «18».10.1982 |
UDC «3.1.1. The thickness of the tape is checked with a micrometer GOST 6507−78, width — roulette GOST 7502−80 or line GOST 427−75».
Was in Tsniichermet: The Ministry of ferrous metallurgy of the USSR
COLD-ROLLED STRIPS OF HIGH-TEMPERATURE SPECIFICATIONS Amendment No. 5 The holder of the original of TSNIICHM The introduction: 1. The validity of technical conditions is extended 2. From the preamble, delete the words about the category of quality. 3. Paragraph 2.4 complement: «the Class of surface quality In-G GOST 4986−79». 4. Note the technical conditions to be stated in a new wording: «Wholesale prices for the products shall be approved by the state Committee for prices of the USSR Council of Ministers and published in the price lists and additions to them."
Was in Tsniichermet: The Ministry of ferrous metallurgy of the USSR
COLD-ROLLED STRIPS OF HIGH-TEMPERATURE SPECIFICATIONS Amendment No. 6 The holder of the original of TSNIICHM The introduction: 1. In tables 1, 2, 3 count «steel, alloy» to complement the brand KHN38VT-VD (ЭИ703-VD). 2. Paragraph 3.1 add sub-3.1.2 as follows: «Leaves from ЭИ703 alloy produced by vacuum-arc remelting, additionally marked with the index «VD».".
Was in Tsniichermet: The Ministry of ferrous metallurgy of the USSR
COLD-ROLLED STRIPS OF HIGH-TEMPERATURE SPECIFICATIONS Amendment No. 7 The introduction:
1. The validity of the technical conditions to extend up to 01.01.2000. 2. Preamble. Delete the sentence about the category of quality. 3. 2.1. In table 1 and note 4 to table 1 the word «content» to replace «mass fraction». 4. 3.3. to exclude. 5. Replace links to: GOST 6507−78, GOST 7592−80 on 6507−90 GOST, GOST 7502−89, respectively. 6. Note the technical specifications for the prices to exclude. Examination conducted Tsniichermet: THE STATE COMMITTEE STANDARDS
AND W IN E SHCH E N AND E N 8On the extension of technical conditions TU 14−1-927−74 Technical conditions TU 14−1-927−74 extended 2.3. Replace units: MPa to N/mm2. On the basis of the letter of JSC «Moscow metallurgical plant» Hammer and Sickle No. 7/41 from Director of the Center for standardization Tsentr snabzheniya Stroitel’nymi materialami was Tsniichermet: Central scientific |
