This specification covers a magnesium alloy in the form of direct chill strand cast round material up to 9.0 inch diameter and rectangular material up to 10 inch by 27.5 inch cross-section (see 8.4) for the purpose of machine from solid applications (see 8.2.1).
Rationale: AMS4431A results from a Five-Year Review and update of this specification. This standard is being reviewed as part of the SAE Five-Year Review policy. The committee will look at possible changes to ordering information and other potential updates throughout the standard.
