MIL-I-46182, MILITARY SPECIFICATION: IRON CASTINGS, SPHEROIDAL GRAPHITE (EXTRA TOUGH( (23-FEB-1982)

MIL-I-46182, MILITARY SPECIFICATION: IRON CASTINGS, SPHEROIDAL GRAPHITE (EXTRA TOUGH( (23-FEB-1982)., This specification covers heat-treated spheroidal graphite iron castings for use where spheroidal graphite iron (also known as ductile iron and modular iron) with maximum notch toughness is required.