ASTM A249 TP310S welded stainless steel pipe specification for welded austenitic steel boiler,superheater,heat-exchanger,and condenser tubes.
ASTM A249 TP310S chemical composition
| Grade | C | Mn | P | S | Si | Cr |
| TP310S | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 24.0-26.0 |
ASTM A249 TP310S tensile and hardness requirements
| Grade | UNS | Tensile strength min,ksi mpa | Yield strength min,ksi mpa | Elongation in 2in.or 50mm min% | Rockwell hardness number,max |
| TP310S | S31008 | 75[515] | 30[205] | 35 | B90 |
Grade TP304H,TP309H,TP309HCb,TP310H,TP310HCb,TP316H, TP321H,TP347H and TP348H are modifications of grade TP304, TP309S,TP309Cb,TP310S,TP310Cb,TP316,TP321,TP347 and TP348 and are intened for high-temperature service such as superheaters and reheaters.
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