Heat-resistant steels
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.08 | ||
| Si | 0.75 | 1.50 | ||
| Mn | - | 2.00 | ||
| P | - | 0.030 | ||
| S | - | 0.030 | ||
| Cr | 17.00 | 20.00 | ||
| Ni | 34.00 | 37.00 | ||
| Cu | - | 1.00 | ||
| Pb | - | 0.005 | ||
| Sn | - | 0.025 |
Heat-resistant steels
| 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) |
|---|---|---|---|---|---|---|
| 914 (≥) | 718 (≥) | 23 | 32 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 111 |
| 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 |
|---|---|---|---|---|---|---|---|
| 856 (≥) | 788 (≥) | 34 | 31 | 34 | 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 |
|||||
| 895 | 876 | 333 |
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