9310 carb
9310 carb
(OP)
Hi, I realy have hard time to obtain a surface hardness of 60-61 HRC on 9310 carburised steel.Finaly I've found a way to get less retained austenite (>15%) but surprise.....58 HRC only. Any ideas way?
9310 FUN
9310 FUN





RE: 9310 carb
Clarificaton please!
RE: 9310 carb
RE: 9310 carb
Better results may be obtained by queching from lower temperature after reheating. Double tempering might help.
http://www.welding-advisers.com/
RE: 9310 carb
RE: 9310 carb
If sub zero treatment is really not possible you could try to run a lower carbon potential and aim for a case carbon of 0.6% which has a higher martensite finish temperature and hence less retained austenite.
RE: 9310 carb