USA SAE A 473 (2009) , A 473 S21904 Specialsteel nless Steel Forgings and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | A 473 S21904 | Austenite | SAE | USA | nless Steel Forgings |
C | Si | Mn | P | S | Cr | Ni | N |
---|---|---|---|---|---|---|---|
≤0.04 | ≤1.00 | 8.00 -10.0 | ≤0.06 | ≤0.03 | 19.0 -21.5 | 5.50 -7.50 | 0.15 -0.40 |
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) |
---|---|---|---|---|---|---|
861 (≥) | 422 (≥) | 31 | 44 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 234 |
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 | - | - | 0.12 | - | |||
649 | 518 | - | 23.3 | 343 | - | ||
311 | - | 42 | 23.2 | 121 | 141 |
Heat treated : 1858°C - 1936°C
A 473 (2009) | nless Steel Forgings | A-473--(2009)-.pdf |
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