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I Forge Iron

Strange burn through

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Burning steel is nothing new to me. Usualy the piece is "eaten" at the corner or the edge. I guess because the thinner part heats faster and is more exposed to oxigen.

But this time it was different - The piece was cut through, in the middle. How does that happen?

The piece is a damascus billet in the work. 15n20 and 125sc (very high carbon steel).


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On ‎08‎/‎10‎/‎2017 at 5:12 AM, ThomasPowers said:

I I have a build up of clinker in the fire and start putting more air into it to get the temp up I have sometimes seem to have  reinvented the cutting torch where a hole in the clinker allows a plume of oxygen rich air to enter the fire,

Thomas - Your spot on! as I cleaned the forge I found the air oppening was muzzled by clinker build up. So it makes perfect sence there where air (and oxigen) jets.


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