Scleroscope and other hardness testing methods Hardness Conversion Tables and Charts: Hardness Conversion Table(colour version - may take time to load) Hardness Conversion Table(non-colour version) Hardness Conversion Chart (1) Hardness Conversion Chart (2) Chart of Brinell, Vickers and Ultimate Tensile Strength Equivalents (1)
A variety of hardness-testing methods are available, including the Vickers, Brinell, Rockwell, Meyer and Leeb) tests.Although it is impossible in many cases to give an exact conversion, it is possible to give an approximate material-specific comparison table for steels. The calculator curve-fits multiple hardness data onto a common polynomial basis and then performs an analytic conversion. 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. Hardness Conversion Table: Tensile Strength (N/mm 2) Brinell Hardness (BHN) Vickers Hardness (HV) Rockwell Hardness (HRB) Rockwell Hardness (HRC) 285: 86: 90: 320: 95 Brinell and Rockwell Hardness Conversion Chart - These Conversion Tables presents data in the Rockwell A, B, C, D, E and F hardness range on the relationship among
1) Standard Hardness Conversion for metals acc. ASTM E 140 - 97, September 1999, Conversion for Non-Austenitic Steels, Table 1. The accuracy of the conversion depends on the accuracy of the provided data and the resulting curve-fits.
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Hardness testing of welds can be performed on any Vickers micro hardness testing machine. When hardness testing of welds, a series of measurements are made in a given pattern at a specific distance from the sample edge or top of the weld. The progression of the hardness values can then be plotted in a graph. Methods typically used: HV5 and HV10
eFunda: Convert Hardness: Vickers Symbol: HV : The Vickers Hardness test can be applied to different materials across a very wide range of hardnesses. The Vickers test uses a square-based diamond pyramid with a 136º point angle. The load (usually 50 kgf, but could be 5, 10, 20, 30, or 120 kgf) is applied via the pyramid against the smooth, firmly-supported, flat surface of the test specimen for 30 seconds.