UK B.S. BS 1449-1-1.4, HR50/45 Specialsteel Steel plate, sheet and strip. Carbon and carbon-manganese plate, sheet and strip. Specification for hot rolled wide material based on specified minimum strength and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Specialsteel | HR50/45 | B.S. | UK | Steel plate, sheet and strip. Carbon and carbon-manganese plate, sheet and strip. Specification for hot rolled wide material based on specified minimum strength |
| C | Si | Mn | P | S | Cr | Ni | Mo | Co | Ti | Fe | Al | Cu | B | Bi | Pb | Ag |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.08 -0.15 | ≤1.00 | ≤1.00 | ≤ ≥ | ≤0.020 | 18.00 -21.00 | ≤remaining | ≤ ≥ | ≤5.00 | 0.20 -0.60 | ≤5.00 | ≤ ≥ | ≤0.50 | ≤ ≥ | ≤ ≥ | ≤0.0050 | ≤ ≥ |
| 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) |
|---|---|---|---|---|---|---|
| 849 (≥) | 536 (≥) | 12 | 44 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 214 |
| 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 | - | - | 0.43 | - | |||
| 168 | 367 | - | 31.3 | 434 | - | ||
| 339 | - | 43 | 42.2 | 331 | 311 |
Heat treated : 1132°C - 1589°C
| BS 1449-1-1.4 | Steel plate, sheet and strip. Carbon and carbon-manganese plate, sheet and strip. Specification for hot rolled wide material based on specified minimum strength | BS-1449-1-1-4.pdf |
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