USA SAE B 427 (2009), B 427 C91700 Specialsteel Gear Bronze Alloy Castings and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | B 427 C91700 | Precipitation-Hardening | SAE | USA | Gear Bronze Alloy Castings |
| C | Si | Mn | P | S | Ni | Cr | Al | Cu | Ti | Fe | Mo | Co |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.01 | ≤0.05 | ≤1.50 | ≤0.04 | ≤0.01 | ≤remaining | 0.50 -1.50 | 0.10 -0.50 | ≤0.50 | ≤ ≥ | 1.00 -6.00 | 26.00 -30.00 | ≤2.50 |
| 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) |
|---|---|---|---|---|---|---|
| 693 (≥) | 497 (≥) | 31 | 14 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 234 |
| 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 |
|---|---|---|---|---|---|---|---|
| 14 | - | - | 0.22 | - | |||
| 127 | 489 | - | 23.3 | 223 | - | ||
| 133 | - | 11 | 41.2 | 142 | 311 |
Heat treated : 1455°C - 1315°C
| B 427 (2009) | Gear Bronze Alloy Castings | B-427-(2009).pdf |
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