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Tulsa Centerless offers the following tools to help you:

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Metal Weight Calculator




Total Weight
lbs.

Metric Conversion Calculator

in.
mm.

Hardness Conversion Chart

Brinell Rockwell C Rockwell B Rockwell A Tensile (ksi)
745 65.3 - 84.1 -
712 - - - -
682 61.7 - 82.2 -
653 60.0 - 81.2 -
627 58.7 - 80.5 -
601 57.3 - 79.8 -
578 56.0 - 79.1 -
555 54.7 - 78.4 298
534 53.5 - 77.8 288
514 52.1 - 76.9 274
495 51.0 - 76.3 264
477 49.6 - 75.6 252
461 48.5 - 74.9 242
444 47.1 - 74.2 230
429 45.7 - 73.4 219
415 44.5 - 72.8 212
401 43.1 - 72.0 202
388 41.8 - 71.4 193
375 40.4 - 70.6 184
363 39.1 - 70.0 177
352 37.9 - 69.3 170
341 36.6 - 68.7 163
331 35.5 - 68.1 158
321 34.3 - 76.5 152
311 33.1 - 66.9 147
302 32.1 - 66.3 143
293 30.9 - 65.7 139
285 29.9 - 65.3 135
277 28.8 - 64.6 131
269 27.6 - 64.1 128
262 26.6 - 63.6 125
255 25.4 - 63.0 121
248 24.2 - 62.5 118
241 22.8 100.0 61.8 114
235 21.7 99.0 61.4 111
229 20.5 98.2 60.8 109
223 - 97.3 - 104
217 - 96.4 - 103
212 - 95.5 - 100
207 - 94.6 - 99
201 - 93.8 - 97
197 - 92.8 - 94
192 - 91.9 - 92
187 - 90.7 - 90
183 - 90.0 - 89
179 - 89.0 - 88
174 - 87.8 - 86
170 - 86.8 - 84
167 - 86.0 - 83
163 - 85.0 - 82
156 - 82.9 - 80
149 - 80.8 - -
143 - 78.7 - -
137 - 76.4 - -
131 - 74.0 - -
126 - 72.0 - -
121 - 69.8 - -
116 - 67.6 - -
111 - 65.7 - -

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