Scot Forge - Questions & Answers for Copper & Copper Alloys

General Metallurgy

What is the resource for converting hardness to equivalent ultimate tensile strength?

Can you direct me to an engineering materials resource that provides charts for steels that display Tensile/Yield Strength vs. Rockwell C (or a convertible to Rockwell C) hardness?

I faced the very same question when compiling the data for one of our charts on our website (http://www.scotforge.com/sf_brinellchart.htm). The hardness conversion among HB, HRC, HV and many others can be found in ASTM E140. I'm sure you noticed, as did I, that the specification does not contain a conversion to an equivalent tensile strength. I therefore found the correlation in the ASM reference book as noted at the bottom of the chart. I am not aware of such a correlation for aluminum.

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