SAE AMS6551B

Steel Bars, Forgings, Mechanical Tubing and Forging Stock 1.75Cr - 4.0Ni - 0.5Mo - (0.35 - 0.40C) Premium Aircraft Quality Consumable Electrode Vacuum Remelted

STANDARD published on 1.9.2026

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The information about the standard:

Designation standards: SAE AMS6551B
Publication date standards: 1.9.2026
Country: American technical standard
Category: Technical standards SAE

Annotation of standard text SAE AMS6551B :

This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.

SUBFILE: Aerospace
TYPE OF DOCUMENT: Aerospace Material Specification