USA SAE A 249/A 249M (2010), A 249 N08367 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 N08367 | Austenite | SAE | USA | Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes | 
| C | Mn | Si | P | S | Cr | Ni | Mo | N | 
|---|---|---|---|---|---|---|---|---|
| ≤0.03 | ≤2.00 | ≤1.00 | ≤0.04 | ≤0.03 | 20.00 -22.00 | 23.50 -25.50 | 6.00 -7.00 | 0.18 -0.25 | 
| 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) | 
|---|---|---|---|---|---|---|
| 618 (≥) | 264 (≥) | 23 | 13 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 134 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 41 | - | - | 0.23 | - | |||
| 771 | 627 | - | 21.3 | 334 | - | ||
| 345 | - | 43 | 34.2 | 244 | 242 | 
Heat treated : 1662°C - 1892°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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