ASTM A249/ASME SA249 Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
| Specification | ASTM A249/ASME SA249 Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes |
| Standard | ASTM A249, ASME SA249 |
| Equivalents | |
| Materials | TP347H, S34709 |
Chemistry Composition of ASTM A249/ASME SA249 TP347H, S34709
| C, % | Si, % | Mn, % | P, % | S, % | Cr, % | Ni, % | Nb, % |
| 0.04-0.10 | 1.00 max | 2.00 max | 0.045 max | 0.030 max | 17.0-19.0 | 9.0-13.0 | 8*C-1.1 |
Mechanical Properties of ASTM A249/ASME SA249 TP347H, S34709
| Tensile Strength , MPa | Yield Strength, MPa | Elongation, % | Hardness, HRB |
| 515 min | 205 min | 35 min | 90 max |