Gray iron | Ductile iron | Low carbon steel castinhg | Low Alloy steel casting | |
Shape stability | Excellent | Average | Bad | Average |
Creep, (%/hr at 800°F, 25 Ksi) | Excelent .001 - .01 | Average .02 - .20 | Bad / Average .05 - .5 | Bad / Average .005 - .05 |
Resistance to swelling | Bad | Good | Good / Very Good | Very Good |