UK B.S. BS 1554, BS 2056, 904S14 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 | 904S14 | B.S. | UK | Specification for stainless steel wire for mechanical springs |
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | N |
|---|---|---|---|---|---|---|---|---|---|
| ≤0.03 | ≤1.00 | ≤2.00 | ≤0.04 | ≤0.03 | 19.50 -22.00 | 4.00 -5.00 | 24.00 -27.00 | 1.00 -2.00 | ≤0.06 |
| 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) |
|---|---|---|---|---|---|---|
| 491 (≥) | 772 (≥) | 12 | 12 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 134 |
| 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 |
|---|---|---|---|---|---|---|---|
| 24 | - | - | 0.23 | - | |||
| 991 | 784 | - | 43.3 | 133 | - | ||
| 669 | - | 14 | 42.2 | 233 | 442 |
Heat treated : 1746°C - 1935°C
| BS 1554 | Specification for stainless and heat-resisting steel round wire | BS-1554.pdf |
| BS 2056 | Specification for stainless steel wire for mechanical springs | BS-2056.pdf |
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