Hi All, I need Your help to make clear in hardness scale adoption. In particular, I'm managing 3 main types of materials: hardned steel, cast iron and hard-metal (tungsten carbide and titanium carbide) and so I'd like to know exactly what types of hardness and scale to use. I found Rockwell C values on the BOHLER chart, to classify hardned steel, but I have no reference for cast iron and hard-metals. Thanks in Advance.
Andrea