ASTM A439/A439M-15 PDF

Scope: 1.1 This specification covers austenitic ductile iron castings, which are used primarily for their resistance to heat, corrosion, and wear, and for other special purposes.

1.2 Austenitic ductile iron, also known as austenitic nodular iron or austenitic spheroidal iron, is characterized by having its graphite substantially in a spheroidal form and substantially free of flake graphite. It contains some carbides and sufficient alloy content to produce an austenitic structure.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

ASTM A439/A439M-15 Referenced Document

ASTM A247 Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings
ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM E10 Standard Test Method for Brinell Hardness of Metallic Materials
ASTM E30
ASTM E351 Standard Test Methods for Chemical Analysis of Cast Iron-All Types
ASTM E59
ASTM E8 Standard Test Methods for Tension Testing of Metallic Materials

2022 ASTM A439/A439M-18(2022) Standard Specification for Austenitic Ductile Iron Castings
2018 ASTM A439/A439M-18 Standard Specification for Austenitic Ductile Iron Castings
2015 ASTM A439/A439M-15 Standard Specification for Austenitic Ductile Iron Castings
1983 ASTM A439-83(2009) Standard Specification for Austenitic Ductile Iron Castings
1983 ASTM A439-83(2004) Standard Specification for Austenitic Ductile Iron Castings
1999 ASTM A439-83(1999) Standard Specification for Austenitic Ductile Iron Castings