| Type | GH5188-produced by EIGA | |||||
chemical composition wt.% | Ni | O | Cr | Fe | C | Si |
| 22.0 | ≤0.02 | 22.0 | ≤3.0 | 0.1 | 0.35 | |
| Mn | P | S | B | Co | W | |
| ≤1.25 | ≤0.02 | ≤0.015 | ≤0.015 | Bal. | 14.0 | |
| Cu | La | |||||
| ≤0.07 | 0.08 | |||||
| physical properties | size distribution μm | hall flow s/50g | apparent density g/cm3 | oxygen content ppm | nitrogen content ppm | sphericity % |
| 15-53 | ≤15 | ≥5.0 | ≤150 | ≤100 | ≥90 | |
| mechanical properties (after heat treatment) | test temperature | tensile strength MPa | yield strength MPa | elongation % | ||
| normal | 900-1064 | 500-609 | ≥45 | |||
| 650℃ | 670-746 | 348-378 | ≥50 | |||
| 980℃ | 200-230 | 163-198 | ≥50 | |||
| high temperature endurance performance | ||||||
| test temperature | test stress MPa | duration h | elongation % | |||
| 927℃ | 90 | ≥30 | ≥30 | |||
| SEM |  | |||||
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