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Hardness Reference Table

Hardness Reference Table

hardness reference table
brinell hardness (hb) rockwell hardness vickers hardness (hv) evil hardness (es)
(ERA) (HRB) (HRC)
— 85.6 — 68.0 940 97
— 85.3 — 67.5 920 96
— 85.0 — 67.0 900 95
767 84.7 — 66.4 880 93
757 84.4 — 65.9 860 92
745 84.1 — 65.3 840 91
733 83.8 — 64.7 820 90
722 83.4 — 64.0 800 88
710 83.0 — 63.3 780 87
698 82.6 — 62.5 760 86
684 82.2 — 61.8 740 —
682 82.2 — 61.7 737 84
670 81.8 — 61.0 720 83
656 81.3 — 60.1 700 —
653 81.2 — 60.0 697 81
647 81.1 — 59.7 690 —
638 80.8 — 59.2 680 80
630 80.6 — 58.8 670 —
627 80.5 — 58.7 667 —
620 80.3 — 58.3 660 79
601 79.8 — 57.3 640 77
578 79.1 — 56.0 615 75
— 78.8 — 55.6 607 —
555 78.4 — 54.7 591 73
— 78.0 — 54.0 579 —
534 77.8 — 53.5 569 71
one 77.1 — 52.5 553 —
514 76.9 — 52.1 547 70
— 76.7 — 51.6 539 —
— 76.4 — 51.1 530 —
495 76.3 — 51.0 528 68
— 75.9 — 50.3 516 —
477 75.6 — 49.6 508 66
— 75.1 — 48.8 495 —
461 74.9 — 48.5 491 65
— 74.3 — 47.2 474 —
444 74.2 — 47.1 472 63
429 73.4 — 45.7 455 61
415 72.3 — 44.5 440 59
401 72.0 — 43.1 425 58
388 71.4 — 41.8 410 56
375 70.6 — 40.4 396 54
363 70.0 — 39.1 383 52
352 69.3 — 37.9 372 51
341 68.7 — 36.6 360 50
331 68.1 — 35.5 350 48
321 67.5 — 34.3 339 47
311 66.9 — 33.1 328 46
302 66.3 — 32.1 319 45
293 65.7 — 30.9 309 43
285 65.3 — 29.9 301 one
277 64.6 — 28.8 292 41
269 64.1 — 27.6 284 40
262 63.6 — 26.6 276 39
255 63.0 — 25.4 269 38
248 62.5 — 24.2 261 37
241 61.8 100.0 22.8 253 36
235 61.4 99.0 21.7 247 35
229 60.8 98.2 20.5 241 34
223 — 97.3 — 234 —
217 — 96.4 — 228 33
212 — 95.5 — 222 —
207 — 94.6 — 218 32
201 — 93.8 — 212 31
197 — 92.8 — 207 30
192 — 91.9 — 202 29
187 — 90.7 — 196 —
183 — 90.0 — 192 28
179 — 89.0 — 188 27
174 — 87.8 — 182 —
170 — 86.8 — 178 26
167 — 86.0 — 175 —
163 — 85.0 — 171 25
156 — 82.9 — 163 —
149 — 80.9 — 156 23
143 — 78.7 — 150 22
137 — 76.4 — 143 21
131 — 74.0 — 137 —
126 — 72.0 — 132 20
121 — 69.8 — 127 19
116 — 67.6 — 122 18
111 — 65.7 — 117 15

Hardness Reference Table Introduction

about this tool:

1. hardness: it is a performance indicator for measuring the hardness and hardness of a material. it has many test methods, different principles, and the measured hardness values ​​and meanings are not exactly the same.

2. this tool provides reference comparisons for common hardness unit values ​​such as shore hardness, rockwell hardness, vickers hardness, and richter hardness.

3. brinell hardness (hb): press the cemented carbide ball or carbide steel ball with a diameter of 1, 2.5, 5 or 10 mm into the surface of the material to be tested with a test force of 1 to 3000 kgf and the maximum indentation is measured.

4. vickers hardness (hv): press the square conical diamond indenter with an angle of 136° on the surface to the surface of the material to be tested with a test force of 1-120kgf and the indentation is measured.

5. rockwell hardness (hr): use a diamond cone (hrc) or hardened (tungsten) steel ball indenter (hrb, etc.), press the surface of the material to be tested with a preload of 10 kgf and a main test force of 60, 100, or 150 kgf, and measure its indentation.

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