Wilson Hardness Conversion Chart
This is a hardness conversion chart from Wilson Hardness. This chart can help you easily convert hardness values from Rockwell to Brinell. This is for Soft Steel, Grey and Malleable Cast Iron and Most Non-Ferrous Metals. ASTM-E-140 is used for reporting conversion by specific alloy base, and does differ slightly from this conversion chart for some alloys. This chart is very useful for determining approximate tensile strength, were ASTM-E-140 does not given these approximate values.