AMS6327M Steel Bars and Forgings 0.50Cr - 0.55Ni - 0.25Mo (0.38 - 0.43C) (SAE 8740) Heat Treated, 125 ksi (862 MPa) Tensile Strength

Revised

06/13/2024

Features
Issuing Committee
Scope
Content
This specification covers an aircraft-quality, low-alloy steel in the form of bars and forgings 1.50 inches or less in diameter or least distance between parallel sides (thickness).
Rationale
Content
AMS6327M is the result of a Five-Year Review and update of the specification. The revision updates compostiion testing and reporting (see 3.1 and 3.1.2), addresses grain size requirements based on composition (see 3.1.1, 3.4.1, 4.2.1, 4.2.2, 4.4.1, and 8.4), addresses exceptions based on size (see 1.1, Table 2, 3.4.4.2, 3.7, 4.3.4, 5.2.1, and 8.7), updates the heat-treatment specification (see 3.2.2), addresses macrostructure requirements (see 3.4.2.1 and 8.8), updates decarburization test methods (see 3.4.3.3.1 and 3.4.3.3.2), updates based on changes in AMS2301 (see 4.2.1 and 4.4.4), adds note based on finish (see 8.5), and allows prior revision (see 8.6).
Meta TagsDetails
DOI
https://doi.org/10.4271/AMS6327M
Pages
9
Citation
SAE International Material Specification, Steel Bars and Forgings 0.50Cr - 0.55Ni - 0.25Mo (0.38 - 0.43C) (SAE 8740) Heat Treated, 125 ksi (862 MPa) Tensile Strength, SAE Standard AMS6327M, Revised June 2024, Reaffirmed October 2000, Issued September 1942, https://doi.org/10.4271/AMS6327M.
Additional Details
Publisher
Published
Jun 13
Product Code
AMS6327M
Content Type
Material Specification
Status
Revised
Language
English