Creep resisting steels, nickel and cobalt alloys
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.18 | 0.24 | ||
| Si | - | 0.50 | ||
| Mn | 0.40 | 0.90 | ||
| P | - | 0.025 | ||
| S | - | 0.015 | ||
| Cr | 11.00 | 12.50 | ||
| Ni | 0.30 | 0.80 | ||
| Mo | 0.80 | 1.20 | ||
| V | 0.25 | 0.35 |
Creep resisting steels, nickel and cobalt alloys
| 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) |
|---|---|---|---|---|---|---|
| 133 (≥) | 593 (≥) | 24 | 44 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 143 |
| 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 |
|---|---|---|---|---|---|---|---|
| 313 (≥) | 695 (≥) | 22 | 32 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 221 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 656 | 848 | 236 |
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