USA SAE SAE J 1249 (2000), EX 45 Specialsteel Former SAE standard and former SAE Ex-steels and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | EX 45 | Precipitation-Hardening | SAE | USA | Former SAE standard and former SAE Ex-steels |
C | Si | Mn | Cr | Ni | Mo | Co | W | Al | Cu | Ti | Fe | B |
---|---|---|---|---|---|---|---|---|---|---|---|---|
≤0.25 | ≤ ≥ | ≤ ≥ | ≤25.50 | ≤10.50 | ≤ ≥ | ≤55.00 | ≤7.00 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤2.00 | ≤0.01 |
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) |
---|---|---|---|---|---|---|
694 (≥) | 697 (≥) | 23 | 21 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 343 |
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 |
---|---|---|---|---|---|---|---|
11 | - | - | 0.34 | - | |||
996 | 977 | - | 44.3 | 334 | - | ||
887 | - | 11 | 11.2 | 443 | 442 |
Heat treated : 1132°C - 1568°C
SAE J 1249 (2000) | Former SAE standard and former SAE Ex-steels | SAE-J-1249-(2000).pdf |
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