This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, flash welded rings, and stock for forging or flash welded rings. These products have been used typically for parts, 0.75 inch (19.0 mm) and under in nominal section thickness at the time of heat treatment, requiring a through-hardening steel capable of developing hardness as high as 40 HRC when properly hardened and tempered and for parts of greater thickness but requiring proportionally lower hardness but usage is not limited to such applications.
SAE AMS6320N-2012 Referenced Document
ASTM A255-10 Standard Test Methods for Determining Hardenability of Steel*, 2024-04-20 Update
ASTM A370-12 Standard Test Methods and Definitions for Mechanical Testing of Steel Products*, 2024-04-20 Update
ASTM E112-10 Standard Test Methods for Determining Average Grain Size*, 2024-04-20 Update
ASTM E381-01 Standard Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings*, 2024-04-20 Update
ASTM E384-11 Standard Test Method for Knoop and Vickers Hardness of Materials*, 2024-04-20 Update