This specification covers an aircraft-quality, low-alloy steel in the form of bars. These bars have been used typically for parts, 0.50 inch (12.7 mm) and under in section thickness at time of heat treatment, requiring a through-hardening steel capable of developing hardness as high as 35 HRC when properly hardened and tempered and also parts of greater thickness but requiring proportionately lower hardness, but usage is not limited to such applications.
Original price was: $61.00.$30.00Current price is: $30.00.
Steel, Bars 0.95Cr – 0.20Mo (0.28 to 0.33C) (SAE 4130) Normalized
SAE International , 10/10/2013
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