sargentcrunch
Plastic
- Joined
- Sep 3, 2019
When you guys heat 4140, do you put the part in the cold oven and bring up to austenitizing temperature? Or do you preheat the oven to austenitizing temperature and then put the part in, and wait for the part to reach temperature. Or do you preheat the oven below austenitizing temperature, put the part in, let it equalize, then ramp up?