Hardness Conversion Table ASTM
Rockwell C Hardness Range
Approximate Hardness Conversion Numbers for Non-Austenitic Steels, According to ASTM E-140 The Conversion Values contained herein should be considered approximate only and may be inaccurate for specific applications
[wptb id=17047]
Rockwell B Hardness Range
Approximate Hardness Conversion Numbers for Non-Austenitic Steels, according to ASTM E-140 The conversion values contained herein should be considered approximate only and may be inaccurate for specific applications.
[wptb id=17067]
Hardness values in brackets are outside the range recommended for Brinell testing in ASTM E-10. The above table is from ASTM E-110 except values for E-scale and Tensile Strength which are not from or according to ASTM Standards. Reprinted from the Annual Book of ASTM Standards, copyright American Society for Testing and Materials.
