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SAE AMS 6479E-2020
Steel, Bars, Forgings, and Tubing 1.45Cr (0.93-1.05C) (SAE 52100) Special Aircraft-Quality Cleanliness
This specification covers a special aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
Society of Automotive Engineers [sae]