[TheForge] Welding 5160

[John Newman]

After hardening I temper H13 tools to  JUST showing colour in the shadows I
would guess 800-900 degrees then air cool I get much better results after doing
this than with no temper .

John

Ed F wrote:

>
>
> I found that H13 needs to get to a kind of glowing orange to harden.  The
> Uddeholm tech rep. thought I should temper the H13 after the cooling.
> Uddeholm outlines that procedure in their tech. info.  It involves holding
> it at something like 800 deg.  I referenced a book on it and it said it was
> optional.  I haven't heard of any smiths doing it so I guess it's ok to skip
> it...  I did have a hot cutter (not tempered)splinter off on the edges of
> struck end though.
>