STEEL BARS AND FORGINGS 0.50Cr - 0.55Ni - 0.25Mo (0.38 - 0.43C) (SAE 8740)
|Publication Date:||31 January 1964|
FORM: Bars, forgins, and forging stock.
APPLICATION: Parts with sections 0.375 in. or less in thickness at the time of heat treatment which require a through-hardening steel capable of developing hardness as high as Rockwell C 50 when properly hardened and tempered and also parts of greater thickness but requiring proportionately lower hardness.