Degradation of mechanical properties of iron according to temperature
| GRAY IRON |
DUCTILE IRON | LOW CARBON STEEL CASTING | LOW ALLOY STEEL CASTING | ||
| 1 | Degradation of tensile strength at 750°F | <15% | <15% | <15% | <15% |
| 2 |
Degradation of yield strength
at 750°F
|
- | <15% | <15% | <15% |
| 3 | Degradation of elongation strength at 750°F | - | <15% | <15% | <15% |
| 4 | Degradation of resistance at 1100°F | <50% | <50% | >90% | >50% |
| 5 | Degradation of resistance at 1300°F | >75% | >75% | >95% | >80% |
| 6 | QI | < 500 | 38000 | 55000 | 50000/85000 |
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