AK builders, how do you heat treat your recievers?

[SOMIS 13]

my friends and I bought all the tools, parts and parts kits to build 11 AK's on our own. but we need to know what you guys do to heat treat your recievers. please tell us tempretures and method of reaching those temps. and quenching style( brine, oil, air etc.) thanks

[69Mach1]

Oil or brine solution.
Brine: 5 gallons of water. 1 pound of salt. 6 oz of liquid soap.

http://www.calguns.net/calgunforum/showthread.php?t=292985

[email]

Is used motor oil OK? (15w40)

[69Mach1]

Yeah, we used to use it. But it made a huge mess, and the smell....

[email]

Gotcha.

What's the best gas to use to heat? Propane? Butane /map?

[69Mach1]

Mapp is what we use, just because it's hotter than propane.

[Flying Sig]

Is it necessary to heat treat the entire receiver or is only treating the holes sufficient?

[killathrilla]

...

[Flying Sig]

That's what I was thinking. Thanks for the links

[WTSGDYBBR]

http://www.youtube.com/watch?v=GyQsSv8KX0g

This will help

[SOMIS 13]

one of the guys in our group is slightly anal and wants to send the recievers out to a heat treating facility and have them hardened to 40 rockwell... is that over kill? I'm thinking so after reading your responses.

[winxp_man]

one of the guys in our group is slightly anal and wants to send the recievers out to a heat treating facility and have them hardened to 40 rockwell... is that over kill? I'm thinking so after reading your responses.

Yes it is. I have had my first build only since November and its running strong and nothing wrong at all. Some guys here way way longer than me with no issues.

Its like killathrilla said it.

[ott1]

one of the guys in our group is slightly anal and wants to send the recievers out to a heat treating facility and have them hardened to 40 rockwell... is that over kill? I'm thinking so after reading your responses.

If the person wants to do that, might as well get a Nodak receiver.

[SOMIS 13]

10 4