tablas de equivalencias de dureza rockwell
DESCRIPTION
Tablas rockwelTRANSCRIPT
BRINELL ROCKWELL VICKERS BRINELL ROCKWELL VICKERSHB HRB HRC HV HB HRB HRC HV80 36.4 (-34) 80.0 340.0 34.9 34085 42.4 (-30) 85.0 350.0 36.0 35090 47.4 (-26) 90.0 359.0 37.0 36095 52.0 (-22) 95.0 368.0 38.0 370
100 56.1 (-19) 100.0 376.0 38.9 380105 60.0 (-16) 105.0 385.0 39.8 390110 63.4 (-14) 110.0 392.0 40.7 400115 65.4 (-11) 115.0 400.0 41.5 410120 69.4 (-9) 120.0 408.0 42.4 420125 72.0 (-7) 125.0 415.0 43.2 430130 74.4 (-5) 130.0 423.0 44.0 440135 76.4 (-3) 135.0 430.0 44.8 450140 78.4 (-1) 140.0 45.5 460145 80.4 0.0 145.0 46.3 470150 82.2 2.0 150.0 47.0 480155 83.8 4.0 155.0 47.7 490160 85.4 5.0 160.0 48.8 500165 85.8 7.0 165.0 49.0 510170 88.2 8.0 170.0 49.8 520175 89.6 9.0 175.0 50.3 530180 90.8 10.0 180.0 50.9 540185 91.8 11.0 185.0 51.5 550190 93.0 12.0 190.0 52.1 560195 94.0 13.0 195.0 52.7 570200 95.0 14.0 200.0 53.3 580205 95.8 15.0 205.0 53.8 590210 96.6 16.0 210.0 54.4 600215 97.6 17.0 215.0 54.9 610220 98.2 18.0 220.0 55.4 620225 99.0 19.0 225.0 55.9 630230 19.2 230.0 56.4 640235 20.2 235.0 56.9 650240 21.2 240.0 57.4 660245 22.1 245.0 57.9 670250 23.0 250.0 58.4 680255 23.8 255.0 58.9 690260 24.6 260.0 59.3 700265 25.4 265.0 60.2 720270 26.2 270.0 61.1 740275 26.9 275.0 61.9 760280 27.6 280.0 62.7 780285 28.3 285.0 63.5 800290 29.0 290.0 64.3 820295 29.6 295.0 65.0 840300 30.0 300.0 65.7 860310 31.5 310.0 66.3 880
320 32.7 320.0 66.9 900330 33.8 330.0 67.5 920
Table A - HRC to HB, HV, Rm
HB Hardness HB Hardness
Vickers 30 Vickers 30
20 226 238 760 45 421 446 1480
21 231 243 770 46 432 458 1520
22 237 248 790 47 442 471 1580
23 243 254 810 48 455 484 1640
24 247 260 820 49 468 498 1700
25 253 266 850 50 482 513 1760
26 258 272 860 51 496 528 1820
27 264 279 880 52 512 544 1880
28 271 286 900 53 525 560 1950
29 279 294 930 54 543 577 2010
30 286 302 950 55 560 595 2070
31 294 310 970 56 577 613 2160
32 301 318 1010 57 595 633 2240
33 311 327 1030 58 615 653 2330
34 319 336 1050 59 634 674 2420
35 327 345 1080 60 654 697
36 336 354 1110 61 670 720
37 344 363 1140 62 688 746
38 353 372 1180 63 706 772
39 362 382 1220 64 722 800
40 371 392 1250 65 739 832
41 381 402 1300 66 865
42 390 412 1340 67 900
43 400 423 1390 68 940
44 409 434 1430
Dureza Rockwell (HRC, HRB) a Brinell Dureza Conversión (HB o BHN)
Formula A - Convert HRC into HBRockwell C Hardness (HRC) Brinell Hardness (HB)
From 21 to 30 HB = 5.970 * HRC + 104.7
From 31 to 40 HB = 8.570 * HRC + 27.6
From 41 to 50 HB = 11.158 * HRC + 79.6
From 51 to 60 HB = 17.515 * HRC - 401
Formula B - Convert HRB into HB
Rockwell B Hardness (HRB) Brinell Hardness (HB)
From 55 to 69 HB = 1.646 * HRB + 8.7
From 70 to 79 HB = 2.394 * HRB - 42.7
HRC Hardness
HV Hardness
Rm Tensile Strength
HRC Hardness
HV Hardness
Rm Tensile Strength
Diamond penetrator
Brinell 3000 Kgf
N / mm2 MPa
Diamond penetrator
Brinell 3000 Kgf
N / mm2 MPa
-
-
-
-
-
-
- -
- -
- -
La dureza es muy importante para la producción de piezas de fundición de metal en bruto, el tratamiento térmico y el proceso de mecanizado. Dureza Rockwell (HRC y HRB) y la dureza Brinell (HB o BHN) son los más utilizados para la fundición de acero y hierro. Aunque no hay tablas de conversión precisos y ecuaciones, pero podemos recomendar los siguientes fórmulas y tablas de comparación de acuerdo con la experiencia y las normas.
From 80 to 89 HB = 3.297 * HRB - 114
From 90 to 100 HB = 5.582 * HRB - 319