ASTM A249 TP305 Welded stainless steel pipe specification for welded austenitic steel boiler,superheater,heat-exchanger,and condenser tubes.
ASTM A249 TP305 covers nominal-wall-thickness welded tubes and heavily cold worked welded tubes made from the austenitic steels.
ASTM A249 TP305 chemical composition
| Grade | C | Mn | P | S | Si | Cr |
| TP305 | 0.12 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 |
ASTM A249 TP305 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 |
| TP305 | S30500 | 75[515] | 30[205] | 35 | B90 |
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