SAE AMS 6431N

This specification covers a premium aircraft-quality, low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.These products have been used typically for ultra-high-strength structural applications requiring a through-hardening, weldable steel for use up to 600 mDF (316 mDC), but usage is not limited to such applications.

This product replaces:SAE AMS 6431M - Steel, Bars, Forgings, and Tubing 1.05Cr 0.55Ni 1.0Mo 0.11V (0.45-0.50C) Vacuum Consumable Electrode Melted