SAE AMS6317L PDF

This specification covers an aircraft-quality, low-alloy steel in the form of heat treated bars and forgings 1.00 inches (25.4 mm) and under in nominal cross section or diameter and for hexagonal shapes, least distance between parallel sides.

AMS6317L is the result of a Five-Year Review and update of the specification. The revision prohibits unauthorized exceptions, including a clarification of the size limits (1.1, Table 2, 3.5, 3.8, 4.4.2, 5.2, 8.7, 8.9), updates composition testing (3.1), incorporates updates to grain refinement requirements (3.1.1, 3.4.2, 4.2.1, 4.2.2, 4.4.1, 8.5), updates decarburization testing (3.4.3.3), adds updates based on changes in AMS2301 (4.2.1, 4.4.1, 4.4.4), provides guidances on use of AS1182 (8.8), and allows for prior revisions (8.6).