HV = Vickers hardness To convert HV to MPa multiply by 9.807 To convert HV to GPa multiply by 0.009807 To use the conversion calculator simply enter a number value into the desired field and click calculate. Some materials (e.g. Vickers, Brinell, Rockwell, Meyer and Leeb). HRB = Rockwell Hardness, HB = Brinell hardness plastics, wood). The result will be displayed on Hardness Conversion Calculator. Result will be displayed. Enter value, select the conversion and click on calculate. The calculator curve-fits multiple hardness data onto a common polynomial basis and then performs an analytic conversion. Hardness Conversion Calculator are for Austenitic Stainless Steel and formulas as per ASTM E140-12. Hardness Converter Given here is an online steel hardness conversion calculator which helps you to calculate the hardness steel of Rockwell HRC, Rockwell HRB and Vickers HV scales. There are a large number of hardness testing methods available (e.g. Hardness Conversion Calculator ASTM E140 Brinell Vickers Rockwell Knoop Scleroscope Hardness Values Conversion Calculator Enter the value, select the conversion and click on calculate. Vickers Hardness Calculator Hardness is a measure of the resistance of a material to plastic deformation induced by applied forces. The accuracy of the conversion depends on the accuracy of the provided data and the resulting curve-fits, and on the valid ranges spanned by the different hardness tests. metals, ceramics) are harder than others (e.g.