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SAE AMS6446 Revision E, July 1, 2006
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Steel, Bars, Forgings, and Tubing 1.0Cr (0.98 - 1.10C) (SAE 51100) Electroslag Remelted
Includes all amendments and changes through Cancellation Notice , July 2006
Additional Comments: NONCURRENT * CNCL NO S/S
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AIA/NAS Aerospace Standards

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


Primarily for bearing components, with thickness under 0.50 inch (12.7 mm), requiring a throughhardening steel, usually with hardness of approximately 60 HRC, and subject to very rigid inspection standards.