ASTM A 536 - 84 (Reapproved 2009) Standard Specification for Ductile Iron Castings

American Society for Testing and Materials (ASTM). Current edition approved May 1, 2009. Published August 2009. 5 p. This specification covers castings made of ductile iron, also known as spheroidal or nodular iron, that is described as cast iron with the graphite substantially spheroidal in shape and essentially free of other forms of graphite, as defined in Terminology A644.