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I'm hoping someone on here will know a good range of rockwell hardness numbers for H and I beam steel rods and the same for a decent forged steel crankshaft If I'm remembering correctly the first batch of Ohio Forged Steel Crankshaft CO. I bought where between 22 and 25C rockwell The crank grinders and machine shop I used at that time in SO CA thought that was to soft, I didn't have those reheat treated I have one of those cranks in my 505 C.I. bracket motor and found out recently there is a heat treating company near by, so I thought I would ask on here first and see about having that crankshaft reheat treated next winter, if it really needs it One other question, what do you guys pay for heat treating a B-RB forged steel stroker crank and for a set of 8 rods?



22-25 rockwell C is like butter....a file is 62 Rc
and I would think good quality steel is 45-50 Rc...
you dont want them too hard but no where near 25Rc
EDIT
Axles range from 57-59 Rc

Last edited by MR_P_BODY; 01/21/13 12:14 AM.