ASTM Cast Iron Specifications

CAST IRON
Product	ASTM Specification
Gray Iron	A48, Class 40
Ductile Iron	A536

CAST IRON

Product

ASTM Specification

Gray Iron

A48, Class 40

Ductile Iron

A536

ASTM Explanation
ASTM Specification	Brief Explanation
A-48	This specification covers gray iron castings intended for general engineering use where tensile strength is a major consideration. Castings are classified on the basis of the tensile strength of the iron in separately cast test bars. Click here to access Dura-Bar's ASTM policy.
A-536	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.

ASTM Explanation

ASTM Specification

Brief Explanation

A-48

This specification covers gray iron castings intended for general engineering use where tensile strength is a major consideration. Castings are classified on the basis of the tensile strength of the iron in separately cast test bars.
Click here to access Dura-Bar's ASTM policy.

A-536

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.

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ASTM Cast Iron Specifications

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