Tempering stainless steel?

[Falconhoodknives]

I am making a 420 stainless chefs knife, I am having it professionally heat treated but I need to temper it my self! I know you can do it with a regular oven, but I don't the temp, or how long!! Does anybody know? Thanks!

 

[Matt Markell]

Where are you having it heat treated? Most ( if not all ) professional HT'ing places that I know of perform the tempering process as part of the HT.

 

[mete]

http://www.lindquiststeels.com/documentation/420-420esr.pdf

Learn to google !
It's not a good idea to delay between hardening and tempering.

 

[Stacy E. Apelt - Bladesmith]

I believe you don't understand that tempering is a part of heat treating. The process is done as one continuous step....not separate things. In stainless steel, the quench does not even finish until -100°F, and then it goes immediately into the tempering oven. This is why stainless is normally "professionally" heat treated.

 

[Falconhoodknives]

Ok thanks! I did not understand it! This is my first time working with stainless steel! I usually work with carbon steel!

 

[Falconhoodknives]

Walker heat treating in Cleveland, I will assume that they have then! This is my first time sending something to a professional heat treat!