UK B.S. BS 1503, BS 6258, BS 970-1, BS 970-3, 310S31 Specialsteel Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Specialsteel | 310S31 | B.S. | UK | Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes |
| C | Si | Mn | P | S | Cr | Mo | Ni |
|---|---|---|---|---|---|---|---|
| ≤0.15 | ≤1.50 | ≤2.00 | ≤0.045 | ≤0.03 | 24.00 -26.00 | ≤ ≥ | 19.00 -22.00 |
| 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) |
|---|---|---|---|---|---|---|
| 683 (≥) | 729 (≥) | 24 | 44 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 112 |
| 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 |
|---|---|---|---|---|---|---|---|
| 43 | - | - | 0.11 | - | |||
| 921 | 332 | - | 31.3 | 243 | - | ||
| 568 | - | 31 | 41.2 | 221 | 414 |
Heat treated : 1619°C - 1367°C
| BS 1503 | Specification for steel forgings for pressure purposes | BS-1503.pdf |
| BS 6258 | Specification for hollow steel bars for machining | BS-6258.pdf |
| BS 970-1 | Specification for wrought steels for mechanical and allied engineering purposes. General inspection and testing procedures and specific requirements for carbon, carbon manganese, alloy and stainless steels | BS-970-1.pdf |
| BS 970-3 | Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes | BS-970-3.pdf |
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