HEAT TREAT Recipe 4140
HEAT TREAT Recipe 4140
(OP)
The Material is 4140 steel, 1.50 thick about 50 lbs each.
The target is to heat treated to Rc 32/38.
We are planning on quenching with water. Can anyone help with a Recipe?
The target is to heat treated to Rc 32/38.
We are planning on quenching with water. Can anyone help with a Recipe?





RE: HEAT TREAT Recipe 4140
RE: HEAT TREAT Recipe 4140
Seriously, though, you'll be better off finding an oil quench for these parts. If oil just cannot be used, consider polymer. As a last resort, I think I'd try a high-volume fan blowing on the load (with the parts carefully spaced to maximize cooling) before I used a water bath.
Also, some steel mills like to spheriodize anneal 4140. This can be slow to austenitize, meaning that you might want to use the high-end of the austenitizing range (1600 F) to get consistent results.
rp