USA SAE A 249/A 249M (2010), A 249 S20910 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 S20910 | Austenite | SAE | USA | Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes |
C | Mn | Si | P | S | Cr | Ni | Mo | N | Nb | V |
---|---|---|---|---|---|---|---|---|---|---|
≤0.06 | 4.00 -6.00 | ≤1.00 | ≤0.04 | ≤0.03 | 20.50 -23.50 | 11.50 -13.50 | 1.50 -3.00 | 0.20 -0.40 | 0.10 -0.30 | 0.10 -0.30 |
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) |
---|---|---|---|---|---|---|
129 (≥) | 219 (≥) | 14 | 32 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 414 |
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 |
---|---|---|---|---|---|---|---|
21 | - | - | 0.12 | - | |||
316 | 423 | - | 43.3 | 344 | - | ||
631 | - | 32 | 14.2 | 144 | 232 |
Heat treated : 1175°C - 1228°C
Grade | Standard | Country | Application |
---|---|---|---|
NITRONIC 20 | |||
NITRONIC 30 | |||
NITRONIC 32 | |||
NITRONIC 33 | |||
NITRONIC 40 | |||
NITRONIC 50 | |||
NITRONIC 60 | |||
S20910 | |||
S20910 | |||
S20910 | |||
S20910 | |||
S20910 | |||
S20910 | |||
S20910 |
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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