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Hardness Conversion Table (Approximate Equivalent Numbers)
Rockwell Brinell Vickers     Shore Tensile
C Scale

150 Kg.120 Deg. Cone

 B Scale 100 Kg.

1/16" Ball

 Hardness

Number

 Diam. 3000 Kg.,10mm Ball Schleroscope Strength

(X1,000Lb./Sq Inch)
60 * 654 2.40 697 81
59 * 634 2.43 674 80 326
58 * 615 2.47 653 78 315
57 * 595 2.51 633 76 305
56 * 577 2.55 613 75 295
* * * * * * *
55 * 560 2.58 595 74 287
54 * 543 2.63 577 72 278
53 * 525 2.67 560 71 269
52 * 512 2.71 544 69 262
51 * 496 2.75 528 68 253
* * * * * * *
50 * 481 2.79 513 67 245
49 * 469 2.83 498 66 239
48 * 455 2.87 484 64 232
47 * 443 2.91 471 63 225
46 * 432 2.94 458 62 219
* * * * * * *
45 * 421 2.98 446 60 212
44 * 409 3.02 434 58 206
43 * 400 3.05 423 57 201
42 * 390 3.09 412 56 196
41 * 381 3.12 402 55 191
* * * * * * *
40 * 371 3.16 392 54 186
39 * 362 3.19 382 52 181
38 * 353 3.24 372 51 176
37 * 344 3.28 363 50 172
36 (109) 336 3.32 354 49 168
* * * * * * *
35 * 327 3.37 345 48 163
34 (108) 319 3.41 336 47 159
33 * 311 3.45 327 46 154
32 (107) 301 3.51 318 44 150
31 (106) 294 3.54 310 43 146
* * * * * * *
30 * 286 3.59 302 42 142
29 * 279 3.63 294 41 138
28 (104) 271 3.69 286 41 134
27 (103) 264 3.74 279 40 131
26 * 258 3.78 272 38 127
* * * * * * *
25 * 253 3.81 266 38 124
24 (101) 247 3.84 260 37 121
23 100 243 3.88 254 36 118
22 99 237 3.93 248 35 115
21 * 231 3.98 243 35 113
* * * * * * *
20 98 226 4.02 238 34 110
(18) 97 219 4.09 230 33 106
(16) 95 212 4.15 222 32 102
(14) 94 203 4.24 213 31 98
(12) 92 194 4.33 204 29 94
* * * * * * *
(10) 91 187 4.42 196 28 90
(8) 90 179 4.51 188 27 87
(6) 87 171 4.58 180 26 84
* * * * * * *
(4) 85 165 4.67 173 25 80
(2) 83 158 4.77 166 24 77
(0) 82 152 4.84 160 24 75
Rockwell Brinell Vickers

Shore

 Tensile
C Scale

150 Kg.120 Deg. Cone

 B Scale 100 Kg.

1/16" Ball

 Hardness

Number

 Diam. 3000 Kg.,10mm Ball Schlero-scope Strength

(X1,000Lb./Sq Inch)

 
Note: All values in parenthesis are outside the normal range, but are shown for general information only. 
All information is provided from sources deemed reliable, but is not warranted.
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