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GOST 12169-82

STATE STANDARD P 54301-2011 GOST 5521-93 GOST 4728-96 GOST 22366-93 GOST 17066-94 GOST 16523-89 GOST 8787-68 GOST 8786-68 GOST 82-70 GOST 19851-74 GOST 21427.1-83 GOST 28870-90 GOST 12766.5-90 GOST 19904-90 GOST 15891-70 GOST 3560-73 GOST 19903-2015 GOST 8559-75 GOST 6765-75 GOST 3559-75 GOST 9235-76 GOST 10234-77 GOST 21427.4-78 GOST 5497-80 GOST 12169-82 GOST 21427.2-83 GOST 14117-85 GOST 2590-88 GOST 14637-89 GOST 30246-2016 GOST 15146-69 GOST 808-70 GOST 1133-71 GOST 103-76 GOST 21996-76 GOST 24244-80 GOST 13345-85 GOST 10533-86 GOST 12766.2-90 GOST 6009-74 GOST 8851-75 GOST 21997-76 GOST 21937-76 GOST 14080-78 GOST 23522-79 GOST 2284-79 GOST 14792-80 GOST 2591-88 GOST 2879-88 GOST 19281-89 GOST 12766.4-90 GOST 28831-90 GOST 7419-90 GOST 6713-91 GOST 8568-77 GOST 503-81 GOST 535-2005 GOST P 52146-2003 GOST P 52246-2016 GOST 8560-78 GOST 27772-88 GOST 14918-80

GOST 12169−82 Billet steel, cut the oxygen cutting. Allowances

GOST 12169−82
Group G12

INTERSTATE STANDARD

BILLET STEEL, CUT OXYGEN CUTTING

Allowances

Steel blanks for oxigen cutting. Allowances

ISS 25.160
77.140.50
OKP 09 1000

Date of introduction 1983−07−01

Resolution of the USSR State Committee on standards of June 16, 1982 N 2406 date of introduction is established 01.07.83
Limitation of actions taken by Protocol No. 2−92 of the Interstate Council for standardization, Metrology and certification (ICS 2−93)
REPLACE GOST 12169−66

REPRINTING. December 2002

1. This standard specifies the dimensions allowances for machining of workpieces of low carbon, medium carbon, low alloy and medium alloy steels, cut oxygen cutting with subsequent mechanical processing.

The standard does not establish the margins of steel billets, cut oxygen cutting will be Assembly or welding without machining.

2. The amount of the allowance includes:

— error cutting (grooves, local digs, deviation of cut surface from perpendicularity etc.), resulting in the cutting process of the workpiece;

— mechanical and electrical errors of the machine or manual cutting method;

the metal layer when cutting medium-carbon and medium alloy steels, in which by heating and rapid cooling, and diffusion processes occurring at the cut edges, changed the structure and chemical composition;

thermal deformations in the metal, under condition of observance of prescribed technological cutting sequence;

technological inaccuracies associated with the installation of workpieces on machine tools for the subsequent removal of the allowance and details within the drawing dimensions.

3. Margins are set depending on the steel grade, thickness of metal, size of workpiece and cutting way.

4. When cutting blanks from the sheet, sections and forgings of carbon and low-alloy steels, the sizes of allowances and tolerances him on the side shall be as specified in table.1.

Table 1

mm

The way of cutting
 The nominal dimensions of the workpieces The thickness of the cut steel
From 4 to 10
 SV. 10 to 20
 SV. 20 to 40
 SV. 40 to 60
The margins on the side and limit deviations
But-
min.
 Pred. off.
 But-
min.
 Pred. off.
 But-
min.
 Pred. off.
 But-
min.
 Pred. off.
On stationary machines From 20 to 500
 3
 A 1.0
 3
 -1,5
 4
 To 2.0
 5
 -2,5
SV. 500 «1000
 3
 -1,5
 4
 To 2.0
 5
 -2,5
 6
 Is 3.0
«1000» 2000
 4
 To 2.0
 5
 -2,5
 6
 Is 3.0
 7
 -3,5
«2000» 5000
 5
 -2,5
 6
 Is 3.0
 7
 -3,5
 8
 -4,0
«5000» 10000
 6
 Is 3.0
 7
 -3,5
 8
 -4,0
 9
 -5,0
On portable machines From 20 to 500
 4
 To 2.0
 5
 -2,5
 6
 Is 3.0
 7
 -3,5
SV. 500 «1000
 5
 -2,5
 6
 Is 3.0
 7
 -3,5
 8
 -4,0
«1000» 2000
 6
 Is 3.0
 7
 -3,5
 8
 -4,0
 9
 -5,0
«2000» 5000
 7
 -4,0
 8
 -4,0
 9
 -5,0
 10
 -6,0
«5000» 10000
 8
 -5,0
 9
 -5,0
 10
 -6,0
 11
 -7,0
Manual
 From 20 to 500
 5
 Is 3.0
 6
 -4,0
 7
 -5,0
 8
 -6,0
SV. 500 «1000
 6
 -4,0
 7
 -5,0
 8
 -6,0
 9
 -7,0
«1000» 2000
 7
 -5,0
 8
 -6,0
 9
 -7,0
 11
 -8,0
«2000» 5000
 8
 -6,0
 9
 -7,0
 11
 -8,0
 13
 -9,0
«5000» 10000
 9
 -7,0
 11
 -8,0
 13
 -9,0
 15
 -10,0
The way of cutting
 The nominal dimensions of the workpieces The thickness of the cut steel
From 60 to 80
 SV. 80 to 100
 SV. 100 to 200
 SV. 200 to 300
The margins on the side and limit deviations
But-
min.
 Pred. off.
 But-
min.
 Pred. off.
 But-
min.
 Pred. off.
 But-
min.
 Pred. off.
On stationary machines From 20 to 500
 6
 Is 3.0
 7
 -3,5
 8
 -4,0
 9
 -5,0
SV. 500 «1000
 7
 -3,5
 8
 -4,0
 9
 -5,0
 10
 -6,0
«1000» 2000
 8
 -4,0
 9
 -5,0
 10
 -6,0
 11
 -7,0
«2000» 5000
 9
 -5,0
 10
 -6,0
 11
 -7,0
 12
 -8,0
«5000» 10000
 10
 -6,0
 11
 -7,0
 12
 -8,0
 -
 -
On portable machines From 20 to 500
 8
 -4,0
 9
 -5,0
 10
 -6,0
 11
 -7,0
SV. 500 «1000
 9
 -5,0
 10
 -6,0
 11
 -7,0
 12
 -8,0
«1000» 2000
 10
 -6,0
 11
 -7,0
 12
 -8,0
 13
 -9,0
«2000» 5000
 11
 -7,0
 12
 -8,0
 13
 -9,0
 14
 -10,0
«5000» 10000
 12
 -8,0
 13
 -9,0
 14
 -10,0
 -
 -
Manual
 From 20 to 500
 9
 -7,0
 11
 -8,0
 13
 -9,0
 15
 -10,0
SV. 500 «1000
 11
 -8,0
 13
 -9,0
 15
 -10,0
 17
 -11,0
«1000» 2000
 13
 -9,0
 15
 -10,0
 17
 -11,0
 19
 -12,0
«2000» 5000
 15
 -10,0
 17
 -11,0
 19
 -12,0
 21
 -13,0
«5000» 10000
 17
 -11,0
 19
 -12,0
 21
 -13,0
 -
 -

5. When cutting blanks from the sheet, sections and forgings of medium carbon and medium alloy steel dimensions clearances and permissible deviations thereon shall be as specified in table.1 with the addition thereto of an additional allowance that takes into account the depth of the zone of thermal influence of cutting on the structure and chemical composition of the cutting edges, are given in table.2.

Table 2

mm

The thickness of the cut steel
 From 4 to 20
 SV. 20 to 100
 SV. 100 to 300
The size of the additional stock on the side
 1
 2
 3

6. When cutting cast billets of carbon and low alloy steels the size of allowances increased twice in comparison with specified in the table.1.

7. When cutting cast billets from medium carbon and medium alloy steel margins are doubled in comparison with specified in the table.1 with the addition doubled the size of the allowance specified in table.2.

8. When cutting workpieces of medium carbon and medium alloy steel parts and structures operating in the marine environment, the allowances established in table.1 and 2 doubles.



The electronic text of the document
prepared by JSC «Code» and checked by:
the official publication of the
M.: IPK Publishing house of standards, 2003