Cast Iron Allowable Stress
Cast Iron Allowable Stress
(OP)
Are the cast iron allowable stress factors - 10 for tensile, 6.67 for bending and 5 for compression - set to minimize permanent distortion? The factors for cast iron are considerably greater than those for steel (3.5 currently).





RE: Cast Iron Allowable Stress
depending on the grade, cast iron can fail abruptly and for this reason is assigned a lower allowable stress than a grade that yields gradually.
There are a couple of good web sites dealing with cast iron. The foundaries are a pretty good source.
you might try the Iron Casting Research organization or the Ductile Iron Institue.