Steels for larger forgings for components in turbine and generator installations
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.20 | 0.26 | ||
| Si | - | 0.50 | ||
| Mn | 0.30 | 0.80 | ||
| P | - | 0.025 | ||
| S | - | 0.020 | ||
| Cr | 11.00 | 12.50 | ||
| Mo | 0.80 | 1.20 | ||
| Ni | 0.30 | 0.80 | ||
| V | 0.25 | 0.35 |
Steels for larger forgings for components in turbine and generator installations of X21CrMoV12-1
| 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) |
|---|---|---|---|---|---|---|
| 231 (≥) | 118 (≥) | 12 | 34 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 321 |
| 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 |
|---|---|---|---|---|---|---|---|
| 541 (≥) | 793 (≥) | 24 | 22 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 441 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 775 | 526 | 528 |
We can customize the production of X21CrMoV12-1 grade, contact us for the best solution.
–sales@specificsteel.com