ASTM A312/A999. Seamless Austenitic Stainless Steel Pipes

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:
  1. Steel Grades - TP 304, TP 304L, TP 316, TP 321
  2. Size of pipes in accordance with ANSI/ASME B36. 19M.
  3. All technical requirements in accordance with ASTM A530.
  4. Length tolerance of measured pipes is not greater than +10 mm.
  5. The quality of pipes is ensured by manufacturing process and non-destructive test.
  6. Intergranular corrosion test in accordance with ASTM A262, Practice E is available.
Sizes
NPS, inch
OD, mm
Wall Thickness, mm
Max. Length, ì
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