UK B.S. BS 2056, 301S81 Specialsteel Specification for stainless steel wire for mechanical springs and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Specialsteel | 301S81 | B.S. | UK | Specification for stainless steel wire for mechanical springs |
C | Si | Mn | P | S | Cr | Mo | Ni | Al |
---|---|---|---|---|---|---|---|---|
≤0.09 | ≤1.00 | ≤1.00 | ≤0.045 | ≤0.030 | 16.00 -18.00 | ≤ ≥ | 6.50 -7.75 | 0.75 -1.50 |
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) |
---|---|---|---|---|---|---|
389 (≥) | 913 (≥) | 22 | 33 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 142 |
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 |
---|---|---|---|---|---|---|---|
14 | - | - | 0.42 | - | |||
668 | 668 | - | 24.3 | 111 | - | ||
879 | - | 12 | 43.2 | 423 | 233 |
Heat treated : 1632°C - 1116°C
BS 2056 | Specification for stainless steel wire for mechanical springs | BS-2056.pdf |
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