UK B.S. BS 1449-1-1.4, HR50F45 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 | HR50F45 | 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) | 
|---|---|---|---|---|---|---|
| 312 (≥) | 129 (≥) | 42 | 42 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 333 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 44 | - | - | 0.44 | - | |||
| 496 | 165 | - | 23.3 | 424 | - | ||
| 699 | - | 32 | 31.2 | 213 | 114 | 
Heat treated : 1689°C - 1959°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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