Iron Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings 29Fe - 22Cr - 21Ni - 18.5Co - 3.2Mo - 2.8W - 0.78Ta - 0.30Al - 0.05La - 0.20N Solution Heat Treated
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.05 | 0.15 | ||
| Si | 0.20 | 0.80 | ||
| Mn | 0.50 | 2.00 | ||
| Ni | 19.00 | 22.50 | ||
| Cr | 21.00 | 23.00 | ||
| Al | 0.10 | 0.50 | ||
| Cu | - | - | ||
| Ti | - | - | ||
| Fe | - | remaining | ||
| Mo | 2.50 | 4.00 | ||
| Co | 16.00 | 21.00 | ||
| W | 2.00 | 3.50 |
Iron Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings 29Fe - 22Cr - 21Ni - 18.5Co - 3.2Mo - 2.8W - 0.78Ta - 0.30Al - 0.05La - 0.20N Solution Heat Treated
| 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) |
|---|---|---|---|---|---|---|
| 874 (≥) | 983 (≥) | 34 | 42 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 123 |
| 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 |
|---|---|---|---|---|---|---|---|
| 454 (≥) | 561 (≥) | 12 | 21 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 144 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 653 | 287 | 634 |
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