Hardness Conversion Chart
Hardness | Hardness Testing | Hardness Conversion Calculator | Hardness Test Methods | Brinell Hardness | Rockwell Hardness | Vickers Hardness | Superficial Rockwell Hardness | Shore Durometer Test | Hardness Conversion Chart | Brinell Rockwell Hardness Conversion | Carbon Steel Cast Steel Hardness Conversion | Rockwell Superficial Brinell Vickers Shore Hardness Conversion | Harder Scales Equivalent | Softer Scales Equivalent | Figure Comparing Hardness Scales | Table of Components Showing Relevant Surface Hardness Values | O-Ring Installation Compressive Load vs Hardness Shore A Scale | Detect The Hardness Of Stainless Steel
There are several hardness scale conversion systems, including BS 860 and ASTM E140.
The table shows a set of values that has been used for stainless steel and also includes a tensile strength (Ultimate Tensile Strength) comparison. The Rockwell B values are superimposed on this table using an approximation from ASTM E140 Table5, which compares Rockwell B and Brinell.
For the indentation methods the different measurements in HV, HRC and HB can also be compared without too much of insecurity. However, for the rebounding methods like Shore and Equotip the errors when making conversions are larger as the individual measurements are highly influenced by the material properties such as internal stresses. Forged rolls have higher internal superficial compression than cast rolls. This creates a higher rebound so the conversion can not be done based on the same tables.
Brinell Hardness (HB) | Vickers Hardness (HV) | Rockwell (HRB) | Rockwell(HRC) | Ultimate Tensile Strength (N/mm2) |
– | 640 | – | 57 | – |
– | 615 | – | 56 | – |
– | 591 | – | 54.5 | – |
– | 569 | – | 53.5 | – |
– | 547 | – | 52 | – |
– | 528 | – | 51 | – |
– | 508 | – | 49.5 | – |
– | 491 | – | 48.5 | 1539 |
444 | 474 | – | 47 | 1520 |
429 | 455 | – | 45.5 | 1471 |
415 | 440 | – | 44.5 | 1422 |
401 | 425 | – | 43 | 1363 |
388 | 410 | – | 42 | 1314 |
375 | 396 | – | 40.5 | 1265 |
363 | 383 | – | 39 | 1236 |
352 | 372 | – | 38 | 1187 |
341 | 360 | – | 36.5 | 1157 |
331 | 350 | – | 35.5 | 1118 |
321 | 339 | – | 34.5 | 1089 |
311 | 328 | – | 33 | 1049 |
302 | 319 | – | 32 | 1020 |
293 | 309 | – | 31 | 990 |
285 | 301 | – | 30 | 971 |
277 | 292 | – | 29 | 941 |
269 | 284 | – | 27.5 | 912 |
262 | 276 | – | 26.5 | 892 |
255 | 269 | 100 | 25.5 | 873 |
248 | 261 | 99 | 24 | 853 |
241 | 253 | 98 | 23 | 824 |
235 | 247 | 97 | 22 | 794 |
229 | 241 | 96 | 20.5 | 775 |
223 | 235 | – | – | 755 |
217 | 228 | 95 | – | 745 |
212 | 223 | 94 | – | 716 |
207 | 218 | 93 | – | 696 |
197 | 208 | 91 | – | 667 |
187 | 197 | 89 | – | 637 |
179 | 189 | 87 | – | 608 |
170 | 179 | 85 | – | 559 |
163 | 172 | 83 | – | 539 |
156 | 165 | 81 | – | 530 |
149 | 157 | 79 | – | 500 |
143 | 150 | 77 | – | 481 |
137 | 144 | 74 | – | 471 |
131 | 138 | 72 | – | 461 |
126 | 133 | 69 | – | 451 |
121 | 127 | 67 | – | 431 |
116 | 122 | 64 | – | 422 |
111 | 117 | 61 | – | 402 |
107 | 113 | – | – | 382 |
103 | 108 | – | – | 373 |
Hardness Conversion Calculator
Hardness Conversion Calculator ASTM E140
Hardness Comparison Table on Various Scales
Relation of Hardness to Other Mechanical Properties Tensile Strength Yield-Strength
Difference of Toughness and Hardness
Brinell Rockwell Hardness Conversion
Carbon Steel Cast Steel Hardness Conversion
Rockwell Superficial Brinell Vickers Shore Hardness Conversion Chart
Figure Comparing Hardness Scales
Table of Components Showing Relevant Surface Hardness Values
O-Ring Installation Compressive Load vs Hardness Shore A Scale
Detect The Hardness Of Stainless Steel
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