tempering tempreture

[Rich]

What temp. and time should be used to temper/anneal an L&R cock that was heated to dull red and air cooled (after bending)?

[cunninmp]

If you did not quench it, it's already soft.I don't think they
are using air hardening tool steel on the cock.
Did you call them to see what kind of steel they are
using on their cocks?
Once the steel is known, then a quenching medium and
a temperature for tempering can be figured out.
Mike C.
 

[Bob Roller]

What did you bend on the L&R lock??

Bob Roller

[Bob Roller]

Bill Cox told me that they use 8620 for plates and cocks and 52-100
for the frizzens. The 8620 can be case hardened or left as is.

Bob Roller

[Rich]

I'm installing a replacement cap lock for a Thompson Center for a friend. The barrel was previously replaced. The cock didn't line up with the nipple and also clipped the fence behind the nipple. The cock had to be adjusted a very small amount so it would line up with the nipple and not hit the fence on the way down. I heated it to a dull red and tweeked the cock (a very tiny amount). It now lines up. I just want to make sure it won't crack with use.

I never saw the original lock. It could be that it didn't line up with the replacement barrel either and that's why the owner was having problems.

[Acer Saccharum]

If you can file it after heating and bending, it's not hard.