USA SAE A 249/A 249M (2010) , A 249 S30909 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 S30909 | Austenite | SAE | USA | Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes |
C | Si | Mn | P | S | Cr | Ni |
---|---|---|---|---|---|---|
≤0.08 | ≤0.75 | ≤2.00 | ≤0.045 | ≤0.030 | 22.0 -24.0 | 12.0 -15.0 |
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) |
---|---|---|---|---|---|---|
654 (≥) | 513 (≥) | 23 | 42 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 114 |
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 |
---|---|---|---|---|---|---|---|
33 | - | - | 0.14 | - | |||
961 | 675 | - | 41.3 | 421 | - | ||
812 | - | 44 | 24.2 | 234 | 423 |
Heat treated : 1775°C - 1731°C
Grade | Standard | Country | Application |
---|---|---|---|
309HD | |||
309HCb | |||
309H | |||
309HCb | |||
TP309H | |||
TP309HCb | |||
TP309H | |||
TP309HCb | |||
TP309H | |||
TP309HCb | |||
S30909 | |||
S30909 | |||
S30909 | |||
S30909 | |||
S30909 |
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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