• ASTM A312 Stainless Steel Pipe
  • ASTM A312 Stainless Steel Pipe
  • ASTM A312 Stainless Steel Pipe

ASTM A312 Stainless Steel Pipe

Application: ASTM A312 covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.

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  • Introduction
  • Specification
  • Application
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Introduction:

  

Specifications Range
Out Diameter 1/8"-30"
Wall Thickness less 3/8" 
 

Specification:

Optional supplementary requirements are provided for pipe where a greater degree of testing is desired. These supplementary requirements call for additional tests to be made and, when desired, it is permitted to specify in the order one or more of these supplementary requirements. 


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

  1. Size of pipes in accordance with ANSI/ASME B36. 19 M.
  2. All technical requirements in accordance with ASTM A530.
  3. Length tolerance of measured pipes is not greater than +10 mm.
  4. The quality of pipes is ensured by manufacturing process and non-destructive test.
  5. 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

Application:

 ASTM A312 covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.

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