USA AMS SA-249/SA-249M, SA-249 S30615 Specialsteel Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application | 
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | SA-249 S30615 | Austenite | AMS | USA | Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes | 
| C | Si | Mn | P | S | Cr | Ni | Al | 
|---|---|---|---|---|---|---|---|
| 0.16 -0.24 | 3.20 -4.00 | ≤2.00 | ≤0.03 | ≤0.03 | 17.0 -19.5 | 13.5 -16.0 | 0.80 -1.50 | 
| Yield Rp0.2 (MPa) | Tensile Rm (MPa) | Impact KV/Ku (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) | 
|---|---|---|---|---|---|---|
| 646 (≥) | 356 (≥) | 43 | 21 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 333 | 
| Temperature (°C) | Modulus of elasticity (GPa) | Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) | Specific thermal capacity (J/kg·°C) | Specific electrical resistivity (Ω mm²/m) | Density (kg/dm³) | Poisson’s coefficient, ν | 
|---|---|---|---|---|---|---|---|
| 11 | - | - | 0.22 | - | |||
| 334 | 785 | - | 43.3 | 344 | - | ||
| 796 | - | 23 | 33.2 | 143 | 214 | 
Heat treated : 1717°C - 1637°C
| SA-249/SA-249M | Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes | SA-249-SA-249M.pdf | 
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