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SAE AMS6423K

Name: SAE AMS6423K PDF | Request Standard
SKU: d29bab90b71a

Steel Bars, Forgings, Mechanical Tubing and Forging Stock, 0.92Cr - 0.75Ni - 0.52Mo - 0.003B - 0.04V (98BV40), Aircraft Quality

Standard by SAE International, 2025-10-23

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SAE AMS6423K.PDFSecure PDF
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Language: English
License Type: Single User
Updates: Not Included

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Language: English
License Type: Enterprise / Multi User
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About This Item

This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock. AMS6423K is the result of a Five-Year Review and update of the specification. The revision updates the Title to include quality and product forms and corrects the common name (see 8.7), revises grain size requirements based on composition (see 3.1.1, 3.3.2, 4.2.2, 4.4.1, and 8.4), updates reporting of additional elements (see 3.1.2), adds finish option (see 3.2.1.2), adds heat-treatment controls (see 3.2.2 and 3.3.5), clarifies macrostructure requirements (see 3.3.1 and 8.9), revises decarburization testing (see 3.3.4.5), adds strain rate control (see 3.3.5.1), incorporates changes to AMS2301 (see 4.2.1, 4.4.1, and 4.4.5), clarifies bar requirements (see 4.4.2), adds forging stock properties (see 4.4.3), updates the exclusion requirements (see 4.4.4), and provides guidance on stock removal (see 8.6).

SKU: d29bab90b71a

Publication Date: 2025-10-23

Standard Status: latest

Publisher: SAE International

Document Type: Aerospace Material Specification

Subject: Forging, Steel, Aircraft, Hoses and tubes, , , , ,

Official SAE: Doi link

This Version: AMS6423K (2025-10-23)
Previous Version: AMS6423J (2021-03-01)
Previous Version: AMS6423H (2016-04-18)
Previous Version: AMS6423G (2014-02-13)
Previous Version: AMS6423F (2010-04-19)
Previous Version: AMS6423E (2004-07-12)
Previous Version: AMS6423D (2000-10-01)
Previous Version: AMS6423C (1983-04-01)
Previous Version: AMS6423B (1975-06-15)
Previous Version: AMS6423A (1969-11-01)
Previous Version: AMS6423 (1958-05-15)

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