Premium Quality Alloy Steel Blooms and Billets for Aircraft and Aerospace Forgings
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.40 | ||
| Si | - | 1.60 | ||
| Mn | - | 0.75 | ||
| P | - | - | ||
| S | - | - | ||
| Ni | - | 0.40 | ||
| Cr | - | 1.85 | ||
| Al | - | - | ||
| Cu | - | - | ||
| Ti | - | - | ||
| Fe | - | remaining | ||
| N | - | - | ||
| Mo | - | - | ||
| V | - | 0.08 |
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) |
|---|---|---|---|---|---|---|
| 389 (≥) | 296 (≥) | 11 | 24 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 242 |
| 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 |
|---|---|---|---|---|---|---|---|
| 387 (≥) | 492 (≥) | 44 | 31 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 323 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 658 | 375 | 931 |
We can customize the production of A 646 Grade 300M grade, contact us for the best solution.
–sales@specificsteel.com