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ASTM A409/A409M Standard Specification for Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature Service.
This specification covers straight seam or spiral seam electric-fusion-welded, light-wall, austenitic chromium-nickel alloy steel pipe for corrosive or high-temperature service. The sizes covered are NPS 14 to 30 with extra light (Schedule 5S) and light (Schedule 10S) wall thicknesses.
Chemical Composition
|
|
C |
Mn |
P |
S |
Si |
Ni |
Cr |
|
|
MAX |
MAX |
MAX |
MAX |
MAX |
|
|
|
TP304 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
8-11 |
18-20 |
|
TP304L |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
8-12 |
18-20 |
|
TP309Cb |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
12-16 |
22-24 |
|
TP309S |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
12-15 |
22-24 |
|
TP310Cb |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
19-22 |
24-26 |
|
TP310S |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
19-22 |
24-26 |
|
TP316 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
10-14 |
16-18 |
|
TP316L |
0.035 |
2.00 |
0.045 |
0.030 |
1.00 |
10-14 |
16-18 |
|
TP317 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
11-15 |
18-20 |
|
TP321 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
9-12 |
17-19 |
|
TP347 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
9-12 |
17-19 |
|
TP348 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
9-12 |
17-19 |
Mechanical Properties
|
Grade |
Tensile Strength |
Yield Strength |
|
min Mpa |
min Mpa |
|
|
TP304 |
515 |
205 |
|
TP304L |
485 |
170 |
|
TP309Cb |
515 |
205 |
|
TP309S |
515 |
205 |
|
TP310Cb |
515 |
205 |
|
TP310S |
515 |
205 |
|
TP316 |
515 |
205 |
|
TP316L |
485 |
170 |
|
TP317 |
515 |
205 |
|
TP321 |
515 |
205 |
|
TP347 |
515 |
205 |
|
TP348 |
515 |
205 |
Pipe Dimesions
|
NPS Designator |
Wall thickness |
|||
|
|
Schedule 5S |
Schedule 10S |
||
|
|
in |
mm |
in |
mm |
|
14 |
0.156 |
3.96 |
0.188 |
4.78 |
|
16 |
0.165 |
4.19 |
0.188 |
4.78 |
|
18 |
0.165 |
4.19 |
0.188 |
4.78 |
|
20 |
0.188 |
4.78 |
0.218 |
5.54 |
|
22 |
0.188 |
4.78 |
0.218 |
5.54 |
|
24 |
0.218 |
5.54 |
0.250 |
6.35 |
|
30 |
0.250 |
6.35 |
0.312 |
7.92 |
