HEAT TREATMENT CARBURIZATION
HEAT TREATMENT CARBURIZATION
(OP)
I AM TRYING TO FIND A METHOD TO AVOID CARBURIZATION OF 25CR MO4 WHILST HARDENING AT 960'C. THEY PIECES ARE SMALL TUBES AND HAVE PROBLEM CONTROLLING ATMOSPHERE WITHIN TUBES. CANT FIND A 6M VACUUM FURNACE IN EUROPE. CAN ANYONE HELP?





RE: HEAT TREATMENT CARBURIZATION
How is your heat treater producing the atmosphere? I've heard it's easier to hold a neutral atmosphere with nitrogen/methanol than with endo gas.
You can try to reduce the furnace time and lower the temperature. Carburization is time and temperature controlled, so reducing time and temperature will reduce the amount of carburization.
Depending on the parts, you might be able to find a salt bath that can do the job.
rp
RE: HEAT TREATMENT CARBURIZATION