USA SAE A 249/A 249M (2010), A 249 S30415 Specialsteel 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 | A 249 S30415 | Austenite | SAE | USA | Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes | 
| C | Mn | Si | P | S | Cr | Ni | Mo | N | Ce | 
|---|---|---|---|---|---|---|---|---|---|
| ≤0.05 | ≤0.60 | ≤1.30 | ≤ ≥ | ≤ ≥ | ≤18.5 | ≤9.50 | ≤ ≥ | ≤0.15 | ≤0.04 | 
| 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) | 
|---|---|---|---|---|---|---|
| 953 (≥) | 631 (≥) | 14 | 14 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 431 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 14 | - | - | 0.13 | - | |||
| 171 | 984 | - | 12.3 | 444 | - | ||
| 679 | - | 24 | 43.2 | 143 | 344 | 
Heat treated : 1269°C - 1846°C
| A 249/A 249M (2010) | Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes | A-249-A-249M-(2010).pdf | 
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