Useful Steel Calculators

We use these calculators every day so we thought we better share them with you...


Calculators

Rockwell C Scale,
150-kg Load, Diamond Penetrator		 Brinell
Hardness,
3000-kg Load,
10-mm Ball

Knoop Hardness, 500Gr. and Over

 Rockwell A Scale, 60-kg Load, Diamond Penetrator 15N Scale,
15-kg
Load,
Diamond
Penetrator		 30N Scale
30-kg
Load,
Diamond
Penetrator		 45N Scale,
45-kg
Load,
Diamond
Penetrator		 Approximate
Tensile
Strength,
ksi (MPa)
68   920 85.6 93.2 84.4 75.4  
67   895 85.0 92.9 83.6 74.2  
66 ... 870 84.5 92.5 82.8 73.3  
65 739 846 83.9 92.2 81.9 72.0  
64 722 822 83.4 91.8 81.1 71.0  
63 706 799 82.8 91.4 80.1 69.9  
62 688 776 82.3 91.1 79.3 68.8  
61 670 754 81.8 90.7 78.4 67.7  
60 654 732 81.2 90.2 77.5 66.6 ...
59 634 710 80.7 89.8 76.6 65.5 351 (2420)
58 615 690 80.1 89.3 75.7 64.3 338 (2330)
57 595 670 79.6 88.9 74.8 63.2 325 (2240)
56 577 650 79.0 88.3 73.9 62.0 313 (2160)
55 560 630 78.5 87.9 73.0 60.9 301 (2070)
54 543 612 78.0 87.4 72.0 59.8 292 (2010)
53 525 594 77.4 86.9 71.2 58.6 283 (1950)
52 512 576 76.8 86.4 70.2 57.4 273 (1880)
51 496 558 76.3 85.9 69.4 56.1 264 (1820)
50 482 542 75.9 85.5 68.5 55.0 255 (1760)
49 468 526 75.2 85.0 67.6 53.8 246 (1700)
48 455
510 74.7 84.5 66.7 52.5 238 (1640)
47 442 495 74.1 83.9 65.8 51.4 229 (1580)
46 432 480 73.6 83.5 64.8 50.3 221 (1520)
45 421 466 73.1 83.0 64.0 49.0 215 (1480)
44 409 452 72.5 82.5 63.1 47.8 208 (1430)
43 400 438 72.0 82.0 62.2 46.7 201 (1390)
42 390 426 71.5 81.5 61.3 45.5 194 (1340)
41 381 414 70.9 80.9 60.4 44.3 188 (1300)
40 371
402 70.4 80.4 59.5 43.1 182 (1250)
39 362 391 69.9 79.9 58.6 41.9 177 (1220)
38 353
380 69.4 79.4 57.7 40.8 171 (1180)
37 344
370 68.9 78.8 56.8 39.6 166 (1140)
36 336
360 68.4 78.3 55.9 38.4 161 (1110)
35 327
351 67.9 77.7 55.0 37.2 156 (1080)
34 319
342 67.4 77.2 54.2 36.1 152 (1050)
33 311
334 66.8 76.6 53.3 34.9 149 (1030)
32 301 326 66.3 76.1 52.1 33.7 146 (1010)
31 294 318 65.8 75.6 51.3 32.5 141 (970)
30 286 311 65.3 75.0 50.4 31.3 138 (950)
29 279 304 64.6 74.5 49.5 30.1 135 (930)
28 271 297 64.3 73.9 48.6 28.9 131 (900)
27 264 290 63.8 73.3 47.7 27.8 128 (880)
258
26 284 63.3 72.8 46.8 26.7 125 (860)
25 253 278 62.8 72.2 45.9 45.9 25.5  
24 247 272 62.4 71.6 45.0 24.3 119 (820)
23 243 232 62.0 71.0 44.0 23.1 117 (810)
22 237 261 61.5 70.5 43.2 22.0 115 (790)
21 231 256 61.0 69.9 42.3 20.7 112 (770)
20 226 251 60.5 69.4 41.5 19.6 110 (760)
Contact Us