BEHAVIOR OF IRON ACCORDING TO TEMPERATURE GRADIENTS
Gray iron | Ductile iron | Low carbon steel castinhg | Low Alloy steel casting | |
Basic thermal resistance parameter (Eα/k) | 24 | 67 | 55 | 89 |
Sheer thermal resistance parameter [U / (Eα/k)] | 9 | 7 | 9 | 7 |
Estimated thermal stress 1200°F | Good | Average | Average / Good | Average / Good |
Thermal shock | Bad / Average | Average | Good | Good |
Thermal constraints Mechanical endurance at 1200°F | Bad / Average | Average | Good | Good / Very good |
High temperature resistance (Ksi) | 4 | 6 | 9 | 14 - 30 |
