The Armour Archive

Hi folks,

I'm still hunting for the 4340 hardening details. I have some annealed stock that I want to make a press form with.

Waveicle

Never mind, found it.

"Heat to 830 oC - 860 oC, hold until temperature is uniform throughout the section, soak for 10 - 15 minutes per 25 mm section, and quench in oil, water, or polymer as required.
*Temper immediately while still hand warm."

Here:


http://www.interlloy.com.au/