Wrought steels for use at elevated temperatures in engines
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.17 | 0.25 | ||
| Si | - | 0.50 | ||
| Mn | - | 1.00 | ||
| P | - | 0.035 | ||
| S | - | 0.030 | ||
| Cr | 11.00 | 12.50 | ||
| Mo | 0.70 | 1.20 | ||
| Ni | 0.30 | 1.00 | ||
| V | 0.20 | 0.35 |
Wrought steels for use at elevated temperatures in engines
| 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) |
|---|---|---|---|---|---|---|
| 267 (≥) | 549 (≥) | 33 | 11 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 241 |
| 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 |
|---|---|---|---|---|---|---|---|
| 733 (≥) | 862 (≥) | 43 | 31 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 312 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 761 | 369 | 352 |
We can customize the production of X21CrMoNiV12-2 grade, contact us for the best solution.
–sales@specificsteel.com