USA SAE ASTM A 581 / A 581M, A 581 Type 303Se Specialsteel Free machining stainless and heat resisting steel wire and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | A 581 Type 303Se | Austenite | SAE | USA | Free machining stainless and heat resisting steel wire |
C | Si | Mn | P | S | Cr | Ni | Se |
---|---|---|---|---|---|---|---|
≤0.15 | ≤1.00 | ≤2.00 | ≤0.2 | ≤0.06 | 17.0 -19.0 | 8.00 -10.0 | 0.15 - ≥ |
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) |
---|---|---|---|---|---|---|
369 (≥) | 891 (≥) | 23 | 11 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 422 |
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 |
---|---|---|---|---|---|---|---|
42 | - | - | 0.32 | - | |||
174 | 892 | - | 14.3 | 214 | - | ||
992 | - | 14 | 11.2 | 224 | 241 |
Heat treated : 1388°C - 1839°C
ASTM A 581 / A 581M | Free machining stainless and heat resisting steel wire | ASTM-A-581---A-581M.pdf |
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