ASME/ASTM Standard
Stainless Steel Pipe
Standard
ASTM A312/A312M 05a
ASTM A269 04
Application
ASTM A269 04 is used for general corrosive and low or high temperature condition service.
ASTM A312/A312M 05a is used for high temperature and general corrosive condition service.
Main Steel Tube Grades
TP304, TP304L, TP321, TP316, TP316L, TP347, TP347H
Chemical Composition
| Steel Grade | Chemical Composition % | |||||||
| C | Mn | P | S | Si | Cr | Ni | Mo | |
| TP304 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 18.0-20.0 | 8.0-11.0 | / |
| TP304L | 0.035 | 2.00 | 0.045 | 0.030 | 0.75 | 18.0-20.0 | 8.0-13.0 | / |
| TP304H | 0.04-0.10 | 2.00 | 0.045 | 0.030 | 0.75 | 18.0-20.0 | 8.0-11.0 | / |
| TP316 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 16.0-18.0 | 11.0-14.0 | 2.00-3.00 |
| TP316L | 0.035 | 2.00 | 0.045 | 0.030 | 0.75 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 |
| TP316H | 0.04-0.10 | 2.00 | 0.045 | 0.030 | 0.75 | 16.0-18.0 | 11.0-14.0 | 2.00-3.00 |
| TP321 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 17.0-19.0 | 9.0-12.0 | / |
| TP347 | 0.08 | 2.00 | 0.040 | 0.030 | 0.75 | 17.0-20.0 | 9.0-13.0 | / |
| TP347H | 0.04-0.10 | 2.00 | 0.040 | 0.030 | 0.75 | 17.0-20.0 | 9.0-13.0 | / |
Mechanical Properties
| Steel Grade | Mechanical Properties | ||
| Tensile Strength MPa | Yield Strength MPa | Elongation % | |
| TP304 | ≥515 | ≥205 | ≥35 |
| TP304L | ≥485 | ≥170 | ≥35 |
| TP304H | ≥515 | ≥205 | ≥35 |
| TP316 | ≥515 | ≥205 | ≥35 |
| TP316L | ≥485 | ≥170 | ≥35 |
| TP316H | ≥515 | ≥205 | ≥35 |
| TP321 | ≥515 | ≥205 | ≥35 |
| TP347 | ≥515 | ≥205 | ≥35 |
| TP347H | ≥515 | ≥205 | ≥35 |
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