Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.38 | 0.43 | ||
| Si | 0.20 | 0.40 | ||
| Mn | 0.50 | 0.70 | ||
| Cr | - | - | ||
| Ni | 0.30 | 0.40 | ||
| Mo | - | - | ||
| Co | - | - | ||
| W | 0.95 | 1.30 | ||
| Al | - | - | ||
| Cu | - | - | ||
| Ti | - | - | ||
| Fe | - | - |
Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 787 (≥) | 429 (≥) | 12 | 13 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 424 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 466 (≥) | 731 (≥) | 44 | 13 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 143 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 488 | 351 | 142 |
We can customize the production of A 646 Grade Nit. 135 grade, contact us for the best solution.
–sales@specificsteel.com