GOST 9941. Seamless Cold-Finished and Warm-Finished Stainless Steel Tubes of Corrosion
Resistant Steel
Outside Diameter: 5 - 95 mm
(up to 25 mm - step 1 mm; next: 27; 28; 30; 32; 34; 35; 36; 38; 40; 42; 45; 48;
50; 51; 53; 54; 56; 57; 60; 63; 65; 68; 70; 73; 75; 76; 80; 83; 85; 89; 90; 95)
Wall Thickness: 0,2 - 8,5 mm
(0,2; 0,3; 0,4; 0,5; 0,6; 0,8; 1; 1,2; 1,4; 1,5; 1,8; 2; 2,2; 2,5; 2,8; 3; 3,5;
4; 4,5; 5; 5,5; 6; 6,5; 7; 7,5; 8; 8,5)
Tolerances:
OD:
D 5 - 10 mm: ord acc. ?0,3 mm; inc. acc. ?0,2 mm; high acc. ?0,15 mm
D 11 - 30 mm: ord acc. ?0,4 mm; inc. acc. ?0,3 mm; high acc. ?0,2 mm
D 32 - 95 mm: ord. acc. ?1,2%; inc. acc. ?1%; high acc. ?0,8%.
WT
S 0,2 mm: ord. acc. ?0,05 mm; inc. acc. ?0,03 mm
S 0,3 - 0,4 mm: ord. acc. ?0,07 mm; inc. acc. ?0,05 mm
S 0,5 - 1 mm: ord.acc. ?0,15 mm; inc. acc. ?0,1 mm
S 1,2 - 3 mm: ord.acc. + 12,5% - 15%; inc.acc. . ?12,5%; high acc. + 12,5% -
10%
S 3,5 - 7 mm: ord.acc. ?12,5%; inc.acc. + 12,5% - 10%; high acc. ?10%
S 7,5 - 8,5 mm: ord.acc. + 12,5% - 10%; inc.acc. ?10%.
Notes:
- Steel grades: 04Cr18Ni10, 08Cr20Ni14Si2, 10Cr17Ni13Mo2Ti, 08Cr18Ni12Ti,12Cr18Ni12T,
08Cr18Ni10, 12Cr18Ni9, 10Cr23Ni18, 12Cr18Ni10Ti, 08Cr18Ni10Ti.
- The Stainles Steel Pipes from steel grades: 08XCr17Ti, 08Cr13,12Cr13,12Cr17, 15Cr25Ti, 08Cr18Ni12Nb,
08Cr17Ni15Mo3Ti, 17Cr18Ni9, 08Cr22Ni6Ti, 06CrNi28MoCuTi are produced subject to
agreement.
- Random length from 0,75 to 12,5 m. Fixed length - up to 7 m, over 7 m - subject
to agreement.
- Delivery of Stainless Steel pipes with control of inner diameter and wall thickness, cold-hardened
(without heat treatment), with test of mechanical properties at 350, on expanding,
on flattening, on stability against intercrystal corrosion, with non-destructive
test - is available subject to agreement.
|
| Sizes |
|
OD, mm
|
WT, mm |
OD, mm
|
WT, mm |
OD, mm
|
WT, mm |
|
5
|
0,2 - 1 |
25 - 28
|
0,3 - 4,5 |
60
|
0,5 - 8,5 |
|
6 - 7
|
0,2 - 1,5 |
30 - 35
|
0,3 - 5,5 |
63 - 75
|
1,5 - 8,5 |
|
8 - 9
|
0,2 - 2 |
36
|
0,4 - 5,5 |
76 - 85
|
3 - 8,5 |
|
10 - 13
|
0,2 - 2,5 |
38 - 45
|
0,4 - 6 |
89 - 90
|
4 - 8,5 |
|
14 - 17
|
0,2 - 3 |
48 - 50
|
0,4 - 7,5 |
95
|
4 - 5 |
|
18 - 19
|
0,2 - 3,5 |
51 - 56
|
0,5 - 7,5 |
|
|
|
20
|
0,2 - 4 |
57
|
0,5 - 8 |
|
|
|
21 - 24
|
0,3 - 4 |
|
|
|
|
| Mechanical properties |
|
Steel Grade |
Tensile Strength, N/mm2 (min) |
Yield Strength, N/mm2 (min)
|
Elongation, % (min) |
|
04Cr18Ni10
|
490 |
- |
45 |
|
08Cr18Ni10T
|
549 |
- |
37 |
|
08Cr18Ni12T
|
549 |
- |
37 |
|
08Cr20Ni14Si2
|
510 |
- |
35 |
|
10Cr17Ni13Mo2T
|
529 |
- |
35 |
|
10Cr23Ni18
|
529 |
- |
35 |
|
12Cr18Ni9
|
549 |
- |
37 |
|
12Cr18Ni10T
|
549 |
- |
35 |
|
12Cr18Ni12T
|
549 |
- |
35 |
| Chemical Composition (%, max) |
|
Steel Grade
|
C
|
Si
|
Mn
|
Cr
|
Ni
|
Mo
|
S
|
P
|
Ti
|
V
|
|
04Cr18Ni10
|
0,04
|
0,8
|
2
|
17-19
|
9-11
|
-
|
0,02
|
0,03
|
-
|
-
|
|
08Cr18Ni10T
|
0,08
|
0,8
|
2
|
17-19
|
9-11
|
-
|
0,02
|
0,035
|
5*C-0,7
|
-
|
|
08Cr18Ni12T
|
0,08
|
0,8
|
2
|
17-19
|
11-13
|
-
|
0,02
|
0,035
|
5*C-0,6
|
-
|
|
10Cr17Ni13Mo2T
|
0,10
|
0,8
|
2
|
16-18
|
12-14
|
2-3
|
0,02
|
0,035
|
-
|
5*C-0,7
|
|
10Cr23Ni18T
|
0,10
|
1
|
2
|
22-25
|
17-20
|
-
|
0,02
|
0,035
|
-
|
-
|
|
12Cr18Ni9T
|
0,12
|
0,8
|
2
|
17-19
|
8-10
|
-
|
0,02
|
0,035
|
-
|
-
|
|
12Cr18Ni10T
|
0,12
|
0,8
|
2
|
17-19
|
9-11
|
-
|
0,02
|
0,035
|
5*C-0,8
|
-
|
|
12Cr18Ni12T
|
0,12
|
0,8
|
1-2
|
17-19
|
11-13
|
-
|
0,02
|
0,03
|
0,5-0,7
|
-
|
|
08Cr17T
|
0,08
|
0,8
|
0,8
|
16-18
|
-
|
-
|
0,025
|
0,035
|
5*C-0,8
|
-
|
|
12Cr13
|
0,09-0,15
|
0,8
|
0,8
|
12-14
|
-
|
-
|
0,025
|
0,03
|
-
|
-
|
|
15Cr25T
|
0,15
|
1
|
0,8
|
21-37
|
-
|
-
|
0,025
|
0,035
|
5*C-0,9
|
-
|
|
08Cr18Ni12T
|
0,08
|
0,8
|
2
|
17-19
|
11-13
|
-
|
0,02
|
0,035
|
5*C-0,6
|
-
|
|
08Cr22Ni6T
|
0,08
|
0,8
|
0,8
|
21-23
|
5,3-6,3
|
-
|
0,025
|
0,035
|
5*C-0,65
|
-
|
|
