AMS6317L Steel Bars and Forgings 1.8Ni - 0.25Mo (0.38 - 0.43C) (4640) Heat Treated, 125 ksi (862 MPa) Tensile Strength

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).