[TheForge] Putting some blue color in iron

[John Newman]

I made a bowl that I coloured blue/purple with heat.  I polished it up to a 120
grit sanding disc.  Then I heated it slowly with a torch till I got the bronze
and straw colours that I wanted, I then stopped however the colours then
progressed to the blues and purples.  The colours were not the ones I had wanted
but it still looks good.  The point of all this is try aiming for a straw or
bronze then you might get the blue if you don't get it you can always go higher.

John Newman

H and P Foster wrote:

> One of my clients wants me to put some blue color in the chain I am making
> for him to match some other material he has.  I have tried heating till I
> see the blue color and then quenching in oil, but the color mostly goes away
> by the time the piece cools.  What is the secret to getting a real nice blue
> that I have seen on some knives etc, should I be quenching in some magic
> brew or or or?
>
> Thanks for any help
>
> Harry Foster
> Rusty Dog Forge
> http://pages.infinit.net/rustydog/home.htm
>
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