USA AMS SA-249/SA-249M, SA-249 S30815 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 S30815 | Austenite | AMS | USA | Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes |
C | Si | Mn | P | S | Cr | Ni | N | Ce |
---|---|---|---|---|---|---|---|---|
0.05 -0.10 | 1.40 -2.00 | ≤0.80 | ≤0.04 | ≤0.03 | 20.0 -22.0 | 10.00 -12.0 | 0.14 -0.20 | 0.03 -0.08 |
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) |
---|---|---|---|---|---|---|
747 (≥) | 356 (≥) | 41 | 44 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 242 |
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 |
---|---|---|---|---|---|---|---|
44 | - | - | 0.44 | - | |||
765 | 284 | - | 11.3 | 144 | - | ||
254 | - | 14 | 22.2 | 221 | 443 |
Heat treated : 1883°C - 1849°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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