1080 heat treat process?

Danbo said:
Curious as to what you quenched the 1080 in. Canola, or the used motor oil? Not that there's anything wrong with using the Canola oil(do a search; there's plenty of arguments for and against it already). Just that my 1080/1084 blades quenched into prewarmed Parks 50 and then tempered at only 400 end up pretty dang hard(like, 62 Rockwell). Probably a bit too hard to be hammering through mild steel bars. Blades quenched in the Canola oil must not get quite as hard as the ones quenched in Parks 50. I find that I have to temper at closer to 450 to get around 60 Rockwell.
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I 3rd that inquiry. 400F just takes the edge off of 1084 with decent conversion. Still way to hard to be considered tough.
 
Rick Marchand said:
I 3rd that inquiry. 400F just takes the edge off of 1084 with decent conversion. Still way to hard to be considered tough.
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hey guys,

after hearing you guys say this i realized my last post was entered wrong i did quench in canola oil but i then tempered for 2 1 hour cycles at 445'F the oven i use sometimes goes up or down about 10'F. There is a margin of error there that im trying to fix. The steel is coming out great though and im very satisfied with my results. My guess is its somewhere in the 58-60 rockwell but 60 might be too high to cut through mild steel so ill say 58-59.Never know for sure untill i get a tester though.

Thanks guys and sorry for the confusion.
 
wolf5391 said:
hey guys,

after hearing you guys say this i realized my last post was entered wrong i did quench in canola oil but i then tempered for 2 1 hour cycles at 445'F the oven i use sometimes goes up or down about 10'F. There is a margin of error there that im trying to fix. The steel is coming out great though and im very satisfied with my results. My guess is its somewhere in the 58-60 rockwell but 60 might be too high to cut through mild steel so ill say 58-59.Never know for sure untill i get a tester though.

Thanks guys and sorry for the confusion.
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Makes sense now. Them 50 degrees make a difference, in tempering temperatures. I'd guess you're probably ending up in the high 50s for Rockwell. ;) :)
 
Danbo said:
Makes sense now. Them 50 degrees make a difference, in tempering temperatures. I'd guess you're probably ending up in the high 50s for Rockwell. ;) :)
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thats what im hoping. but either way whatever rockwell it is im very satisfied with the cutting performance and durability of the steel.
 
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