wrought steels used in aeronautical constructions
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.22 | 0.29 | ||
| Si | 0.10 | 0.25 | ||
| Mn | 0.50 | 0.80 | ||
| P | - | 0.020 | ||
| S | - | 0.015 | ||
| Cr | 0.90 | 1.20 | ||
| Mo | 0.15 | 0.25 | ||
| Ni | - | 0.30 |
25CD4S Air 9160C wrought steels used in aeronautical constructions
| 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) |
|---|---|---|---|---|---|---|
| 992 (≥) | 284 (≥) | 41 | 33 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 442 |
| 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 |
|---|---|---|---|---|---|---|---|
| 565 (≥) | 988 (≥) | 33 | 12 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 111 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 924 | 262 | 441 |
We can customize the production of 25CD4S Air 9160/C grade, contact us for the best solution.
–sales@specificsteel.com