.311 hole in 4140 that needs heat treating
#9
Thanks for the comments guys.

Tom - I was thinking more of keeping oxygen away from the surface of the bore than introducing more carbon.

Al - I live in Perth, where everything is either unavailable or expensive. This is why I load up as much as I can when I get to the US. Having said that. There are some options now on eBay. Last time I looked (a while back), it was going to cost a couple of hundred bucks for a roll.

Edit - most stuff I see is .02mm (.0008") thick. Is that going to hold up to the temps required (~860°C / 1580°F)?
Hunting American dentists since 2015.
Reply
Thanks given by:


Messages In This Thread
RE: .311 hole in 4140 that needs heat treating - by Mayhem - 03-02-2016, 08:38 AM



Users browsing this thread: 3 Guest(s)