440C tempering question
440C tempering question
(OP)
I have a 440C part that is tempered at 400 F to a Rockwell C hardness of 58-60. I am looking into a coating process that needs to be done at 428 F. Will being at that temperature reduce the hardness or change any of its other properties significantly?





RE: 440C tempering question
"You see, wire telegraph is like a very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? Radio operates the same way: You send signals here, they receive them there. The only difference is there is no cat." A. Einstein
RE: 440C tempering question
RE: 440C tempering question
RE: 440C tempering question
"You see, wire telegraph is like a very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? Radio operates the same way: You send signals here, they receive them there. The only difference is there is no cat." A. Einstein