AMS6381K: Steel, Mechanical Tubing 0.95Cr - 0.20Mo (0.38 - 0.43C) (SAE 4140) - Material Specification

Features

Issuing Committee: AMS E Carbon and Low Alloy Steels Committee

Scope

Content: This specification covers an aircraft-quality, low-alloy steel in the form of mechanical tubing.

Rationale

Content: AMS6381K is the result of a Five-Year Review and update of the specification. The revision includes updates in composition testing and reporting (3.1, 3.1.2), revision of test procedures (3.2), prohibition of unauthorized exceptions, adds macrostructure requirements (3.3.1, 8.8) adds information on jominy testing (3.3.3), updates decarburization test methods (3.3.4.4), addresses changes in AMS2301 (4.2.1, 4.4.3), adds a note on surface finish (8.5), and allows prior revisions (8.6).

Meta Tags

Topics: Steel
Hoses and tubes
Materials properties
Coatings, colorants and finishes
Heat treatment
Metal finishing
Aluminum
Alloys
Test procedures
Manganese
Nickel

Details

DOI: https://doi.org/10.4271/AMS6381K

Pages: 7

Citation: SAE International Material Specification, Steel, Mechanical Tubing 0.95Cr - 0.20Mo (0.38 - 0.43C) (SAE 4140), SAE Standard AMS6381K, Revised November 2022, Reaffirmed April 2008, Issued December 1942, https://doi.org/10.4271/AMS6381K.

Additional Details

Publisher: SAE International

Published: Nov 2, 2022

Product Code: AMS6381K

Content Type: Material Specification

Status: Revised

Language: English

Historical