This mighht be difficult to answer but how hot does steel need to get before it damages the temper? I stupidly allowed a blade to get a bit hot. Not too hot for me to touch it, but it was definitely warm. Will this do anything to the temper?
Knives and heat
- Thread starter heath
- Start date
robin wood
Bushcrafter (boy, I've got a lot to say!)
around 250 degrees c would do it or a bit hotter than it is possible to get in a domestic oven. If it has happened you will see some colour on the bit that got hot...if its a straw colour you are still ok, bronze (260 degrees ish) and its getting a bit on the soft side, blue (300 degrees ish) and it would significantly reduce the edge holding ability. No colour=no damage.
I'd agree that you didn't damage it, though it is possible to temper a blade at domestic oven temperatures. It's an old blacksmith/bladesmith joke/truism about getting in trouble with the wife for tempering things in the oven 
M2 is nothing compared with H13 or S7 of course the edge of a chisel of that stuff will remain hard at red heat, and at yellow or bright orange is as hard under the hammer as cold mild!
M2 is nothing compared with H13 or S7 of course
the edge of a chisel of that stuff will remain hard at red heat, and at yellow or bright orange is as hard under the hammer as cold mild!Similar threads
