USA SAE A 249/A 249M (2010), A 249 S33228 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 S33228 | Austenite | SAE | USA | Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes |
C | Mn | Si | P | S | Cr | Ni | Ce | Nb | Al |
---|---|---|---|---|---|---|---|---|---|
0.04 -0.08 | ≤1.00 | ≤0.30 | ≤0.02 | ≤0.015 | 26.0 -28.0 | 31.0 -33.0 | 0.05 -0.10 | 0.10 -1.00 | ≤0.025 |
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) |
---|---|---|---|---|---|---|
948 (≥) | 823 (≥) | 41 | 14 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 444 |
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 |
---|---|---|---|---|---|---|---|
22 | - | - | 0.14 | - | |||
962 | 667 | - | 32.3 | 122 | - | ||
466 | - | 44 | 32.2 | 423 | 424 |
Heat treated : 1384°C - 1889°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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