High-strength, high-temperature martensitic steel
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.18 | 0.24 | ||
| Si | 0.10 | 0.50 | ||
| Mn | 0.30 | 0.80 | ||
| P | - | 0.035 | ||
| S | - | 0.035 | ||
| Cr | 11.00 | 12.50 | ||
| Ni | 0.30 | 0.80 | ||
| Mo | 0.80 | 1.20 | ||
| V | 0.25 | 0.35 |
High-strength, high-temperature martensitic steel
| 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) |
|---|---|---|---|---|---|---|
| 813 (≥) | 632 (≥) | 31 | 44 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 423 |
| 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 |
|---|---|---|---|---|---|---|---|
| 682 (≥) | 195 (≥) | 33 | 32 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 122 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 531 | 627 | 129 |
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