Andre Grobler
Well-Known Member
It is not so much that it bothers me that heat treat is a point low, it is that i don’t know what went wrong... and i dont know which way it went, soft due to RA or grain size or some other experimental error...
Well i think i know what went wrong this time, it seems that possibly my thermocouple under reads and i overheated aus temps by about 27 degc... stainless... i am out about 23 at 870... so it may be an easy fix, i test heat treat a known steel at a range of temps... but it grates my ass that 3months ago i dialled in my heat treat very nicely and now it is buggered... i have spent a lot of time the last while doing grain refinement and normalizing in the oven so i racked up a good few hours on my tc... i also feel bummed that there are possibly knives out there that are substandard... i usually err on the side of caution, but of late i have been pushing the envelope a bit to get to use the easy to find steels a bit and now it bit back hard...
How do you deal with the worries?
Well i think i know what went wrong this time, it seems that possibly my thermocouple under reads and i overheated aus temps by about 27 degc... stainless... i am out about 23 at 870... so it may be an easy fix, i test heat treat a known steel at a range of temps... but it grates my ass that 3months ago i dialled in my heat treat very nicely and now it is buggered... i have spent a lot of time the last while doing grain refinement and normalizing in the oven so i racked up a good few hours on my tc... i also feel bummed that there are possibly knives out there that are substandard... i usually err on the side of caution, but of late i have been pushing the envelope a bit to get to use the easy to find steels a bit and now it bit back hard...
How do you deal with the worries?