Steel Pipes - ASTM A312
| Specifications | Range |
| Out Diameter | 1/8"-30" |
| Wall Thickness | less 3/8" |
ASTM A312 covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.
Table X1.1 lists the standardized dimensions of welded and seamless stainless steel pipe as shown in ANSI B36.19. These dimensions are also applicable to heavily cold worked pipe. Pipe having other dimensions is permitted to be ordered
Nominal Pipe Size (NPS): 1/8, 1/4, 3/8, 1/2, 3/4, 1, 11/4, 11/2, 2, 21/2 inch
Outside Diameter: 10,3 - 73 mm (0,405 - 2,875 inch)
Wall Thickness: 1,73 - 7,01 (0,068 - 0,276 inch)
Notes:
Steel Grades - TP 304, TP 304L, TP 316, TP 321
- Size of pipes in accordance with ANSI/ASME B36. 19M.
- All technical requirements in accordance with ASTM A530.
- Length tolerance of measured pipes is not greater than +10 mm.
- The quality of pipes is ensured by manufacturing process and non-destructive test.
- Intergranular corrosion test in accordance with ASTM A262, Practice E is available.
| Sizes | |||
|
inch
|
OD, mm
|
Wall Thickness,
|
Max. Length, м
|
|
1/8
|
10,3
|
1,73; 2,11
|
12
|
|
1/4
|
13,7
|
2,24; 3,02
|
|
|
3/8
|
17,1
|
2,31; 3,20
|
|
|
1/2
|
21,3
|
2,11; 3,73
|
|
|
3/4
|
26,7
|
2,87; 3,91
|
|
|
1
|
33,4
|
3,38; 4,55; 6,35
|
10
|
|
1 1/4
|
42,4
|
3,56; 4,85; 6,35
|
|
|
1 1/2
|
48,3
|
3,68; 5,03; 7,14
|
|
|
2
|
60,3
|
3,58; 3,91; 4,37; 4,78; 6,35; 6,94; 7,14
|
|
|
2 1/2
|
73,0
|
3,58; 3,95; 4,37; 4,78; 5,16; 5,49; 6,35; 7,01
|
|
| Mechanical properties | |||
|
Steel Grade
|
Tensile Strength, N/mm2 (min)
|
Yield Strength, N/mm2 (min)
|
Elongation, % (min)
|
|
TP304
|
515
|
205
|
35
|
|
TP304L
|
485
|
170
|
35
|
|
TP316
|
515
|
205
|
35
|
|
TP316L
|
485
|
170
|
35
|
|
TP321
|
OD < 17,1 mm - 515;
OD > 17,1 mm - 485 |
OD < 17,1 mm - 205;
OD > 17,1 mm - 170 |
35
|
| Chemical Composition (%, max) | ||||||||
|
Steel Grade
|
C
|
Si
|
Mn
|
Cr
|
Ni
|
Mo
|
S
|
P
|
|
TP304
|
0,08
|
0,75
|
2
|
18 - 20
|
8 - 11
|
-
|
0,03
|
0,04
|
|
TP304L
|
0,035
|
0,75
|
2
|
18 - 20
|
8 - 13
|
-
|
0,03
|
0,04
|
|
TP316
|
0,08
|
0,75
|
2
|
16 - 18
|
11 - 14
|
2 - 3
|
0,03
|
0,04
|
|
TP316L
|
0,035
|
0,75
|
2
|
16 - 18
|
10 - 15
|
2 - 3
|
0,03
|
0,04
|
|
TP321
|
0,08
|
0,75
|
2
|
17 - 20
|
9 - 13
|
-
|
0,03
|
0,04
|
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