| Type | GH4099-produced by EIGA | |||||
chemical composition wt.% | Ni | O | Cr | Fe | Mo | Al |
| Bal. | ≤0.02 | 18.5 | ≤2.0 | 4.2 | 2.0 | |
| Ti | C | Si | Mn | P | S | |
| 1.2 | ≤0.08 | ≤0.5 | ≤0.4 | ≤0.015 | ≤0.015 | |
| B | Co | Mg | Ce | W | ||
| ≤0.005 | 6.5 | ≤0.01 | ≤0.02 | 6.0 | ||
physical properties | size distribution μm | hall flow s/50g | apparent density g/cm3 | oxygen content ppm | nitrogen content ppm | sphericity % |
| 15-53 | ≤15 | ≥4.5 | ≤150 | ≤100 | ≥90 | |
mechanical properties (after heat treatment) | test temperatur | tensile strength MPa | yield strength MPa | elongation % | ||
normal | 1080-1160 | 720-730 | ≥30 | |||
| 700℃ | 1000-1050 | 710-730 | ≥18 | |||
| 900℃ | 480-500 | 400-420 | ≥16 | |||
| 950℃ | 300-320 | 230-250 | ≥25 | |||
| 1000℃ | 150-180 | 120-140 | ≥28 | |||
high temperature endurance performance | ||||||
test temperature | test stress MPa | duration h | elongation % | |||
| 900℃ | 98 | ≥6 | ≥25 | |||
| SEM |  | |||||
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