Blacksmith and Metalworking Forum
This is a discussion on Cast Steel? within the Problem Solving forums, part of the Blacksmithing category; BOX SAID "BLOCK VALVE CYLINDER LAPPING " TOOK BLOCK HEATED TO CHERRY RED & ANNEALED FOR 1hr.. reheated to ORANGE ...
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There is a method whereby one rubs cast iron on a mild steel object in the forge, while both are hot. This causes some carbon migration into the mild steel object and thus some case hardening. I believe this is what he is referring to.
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