A.S.T.M. A48 Gray Iron
A.S.T.M. A536 Ductile Iron
A.S.T.M. A395 Ductile Iron
A.S.T.M. A439 Austenitic Ductile Iron
A.S.T.M. A436 Austenitic Gray Iron
A.S.T.M. A897 Austempered Ductile Iron