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Main Boards => Hunting Knives and Crafters => Topic started by: skullworks on July 17, 2010, 11:42:00 AM

Title: Heat bluing a blade?
Post by: skullworks on July 17, 2010, 11:42:00 AM

I saw some that have the cool purple blue color and wondered how you did it with out screwing up the blade temper.

Looks like this.

 (http://i27.photobucket.com/albums/c154/Skullworks02/KNIVES/gallery25-lg.jpg)

Title: Re: Heat bluing a blade?
Post by: Lin Rhea on July 17, 2010, 11:44:00 AM

I would think the blueing heat has to be no higher than the drawback temps of the blade steel. Lin

Title: Re: Heat bluing a blade?
Post by: Ragnarok Forge on July 19, 2010, 10:47:00 AM

I recently read a post where a 20 minute etch in vinegar followed by 2 hours at 320 degrees gave a very nice blue. I plan to try it on a couple of blades I am working on.

Title: Re: Heat bluing a blade?
Post by: David Ricke on August 08, 2010, 08:11:00 PM

I have used some cold blues with varying degrees of success. I have also tryed to heat blue but the temp is too high for a blade. I have used it on damscus bolsters.  Knifemaker