1. Scope

1.1 This specification covers iron-chromium and iron-chromium-nickel alloy castings for general corrosion-resistant application. The grades covered by this specification represent types of alloy castings suitable for broad ranges of application which are intended for a wide variety of corrosion environments.

Note 1For alloy castings for severe corrosion-resistant service, reference should be made to Specification A744/A744M . For general heat-resistant alloy castings, reference should be made to Specification A297/A297M . For nickel alloy castings for corrosion-resistant service, reference should be made to Specification A494/A494M .

1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. Inch-pound units are applicable for material ordered to Specification A743 and SI units for material ordered to Specification A743M.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels

A297/A297M Specification for Steel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat Resistant, for General Application

A370 Test Methods and Definitions for Mechanical Testing of Steel Products

A494/A494M Specification for Castings, Nickel and Nickel Alloy

A744/A744M Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service

A781/A781M Specification for Castings, Steel and Alloy, Common Requirements, for General Industrial Use

A890/A890M Specification for Castings, Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General Application

A957 Specification for Investment Castings, Steel and Alloy, Common Requirements, for General Industrial Use

Keywords

?corrosion resistant; iron-chromium; iron-chromium-nickel; steel castings;

ICS Code

ICS Number Code 77.140.80 (Iron and steel castings)

DOI: 10.1520/A0743_A0743M-06R10

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