USA SAE A 581/A 581M (2009), A 581 S18200 Specialsteel Free-Machining Stainless Steel Wire and Wire Rods and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | A 581 S18200 | Ferrite | SAE | USA | Free-Machining Stainless Steel Wire and Wire Rods |
| C | Mn | Si | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|
| ≤0.08 | ≤2.50 | ≤1.00 | ≤0.04 | 0.15 - ≥ | 17.50 -19.50 | ≤ ≥ | 1.50 -2.50 |
| 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) |
|---|---|---|---|---|---|---|
| 653 (≥) | 418 (≥) | 41 | 44 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 133 |
| 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 | - | - | 0.31 | - | |||
| 161 | 915 | - | 31.3 | 144 | - | ||
| 547 | - | 14 | 11.2 | 124 | 441 |
Heat treated : 1332°C - 1232°C
| A 581/A 581M (2009) | Free-Machining Stainless Steel Wire and Wire Rods | A-581-A-581M-(2009).pdf |
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