Rockwell Rockwell Superficiale Vickers Brinell Trazione
– Surface Rockwell hardness -Traction
– Dureté Rockwell Superficielle -Traction
A B C D 15 N 30 n 45 N 15 T 30 T 45 T HV HB N/mm²
120° 1/16″ 120° 120° 120° 120° 120° 1/16″ 1/16″ 1/16″ 136° 10
60 100 150 100 15 30 45 30 30 45 10 3000
80.8 – 59.2 70.1 89.8 76.8 65.7 – – – 680 646 –
80.6 – 58.8 69.8 89.7 76.4 65.3 – – – 670 637 –
80.3 – 58.3 69.4 89.5 75.9 64.7 – – – 660 627 –
80.0 – 57.8 69.0 89.2 75.5 64.1 – – – 650 618 2180
79.8 – 57.3 68.7 89.0 75.1 63.5 – – – 640 608 2145
79.5 – 56.8 68.3 88.8 74.6 63.0 – – – 630 599 2105
79.2 – 56.3 67.9 88.5 74.2 62.4 – – – 620 589 2070
78.9 – 55.7 67.5 88.2 73.6 61.7 – – – 610 580 2030
78.6 – 55.2 67.0 88.0 73.2 61.2 – – – 600 570 1995
78.4 – 54.7 66.7 87.8 72.7 60.5 – – – 590 561 1955
78.0 – 54.1 66.2 87.5 72.1 59.9 – – – 580 551 1920
77.8 – 53.6 65.8 87.2 71.7 59.3 – – – 570 542 1880
77.4 – 53.0 65.4 86.9 71.2 58.6 – – – 560 532 1845
77.0 – 52.3 64.8 86.6 70.5 57.8 – – – 550 523 1810
76.7 – 51.7 64.4 86.3 70.0 57.0 – – – 540 513 1775
76.4 – 51.1 63.9 86.0 69.5 56.2 – – – 530 504 1740
76.1 – 50.5 63.5 85.7 69.0 55.6 – – – 520 494 1700
75.7 – 49.8 62.9 85.4 68.3 54.7 – – – 510 485 1665
75.3 – 49.1 62.2 85.0 67.7 53.9 – – – 500 475 1630
74.9 – 48.4 61.6 84.7 67.1 53.1 – – – 490 466 1595
74.5 – 47.7 61.3 84.3 66.4 52.2 – – – 480 456 1555
74.1 – 46.9 60.7 83.9 65.7 51.3 – – – 470 447 1520
73.6 – 46.1 60.1 83.6 64.9 50.4 – – – 460 437 1485
72.3 – 45.3 59.4 83.2 64.3 49.4 – – – 450 428 1455
73.0 – 44.5 58.8 82.8 63.5 48.4 – – – 440 418 1420
72.3 – 43.6 58.2 82.3 62.7 47.4 – – – 430 408 1385
71.8 – 42.7 57.5 81.8 61.9 46.4 – – – 420 399 1350
71.4 – 41.8 56.8 81.4 61.1 45.3 – – – 410 389 1320
70.8 – 40.8 56.0 80.8 60.2 44.1 – – – 400 380 1290
70.3 – 39.8 55.3 80.3 59.3 42.9 – – – 390 370 1255
69.8 – 38.8 54.4 79.8 58.4 41.7 – – – 380 361 1220
69.2 – 37.7 53.6 79.2 57.4 40.4 – – – 370 351 1190
68.7 – 36.6 52.8 78.6 56.4 39.1 – – – 360 342 1155
68.1 – 35.5 51.9 78.0 55.4 37.8 – – – 350 332 1125
67.6 – 34.4 51.1 77.4 54.4 36.5 – – – 340 323 1095
67.0 – 33.3 50.2 76.8 53.6 35.2 – – – 330 313 1060
66.4 – 32.2 49.4 76.2 52.3 33.9 – – – 320 304 1030
65.8 – 31.0 48.4 75.6 51.3 32.5 – – – 310 294 995
65.2 – 29.8 47.5 74.9 50.2 31.1 – – – 300 285 965
64.8 – 29.2 47.1 74.6 49.7 30.4 – – – 295 280 950
64.5 105.0 28.5 46.5 74.2 49.0 29.5 – – – 290 275 930
64.2 104.5 27.8 46.0 73.8 48.4 28.7 – – – 285 271 915
63.8 104.0 27.1 45.3 73.4 47.8 27.9 – – – 280 266 900
63.5 103.0 26.4 44.9 73.0 47.2 27.1 – – – 275 261 880
63.1 102.0 25.6 44.3 72.6 46.4 26.2 – – – 270 256 865
62.7 101.5 24.8 43.7 72.1 45.7 25.2 – – – 265 252 850
62.4 101.0 24.0 43.1 71.6 45.0 24.3 – – – 260 247 835
62.0 100.0 23.1 42.2 71.1 44.2 23.2 93.0 82.0 72.0 255 242 820
61.6 99.5 22.2 41.7 70.6 43.4 22.2 92.8 81.6 71.5 250 237 800
61.2 98.8 21.3 41.1 70.1 42.5 21.1 92.5 81.3 70.8 245 233 785
60.7 98.1 20.3 40.3 69.6 41.7 19.9 92.3 81.0 70.0 240 228 770
– 97.4 19.0 – – – – 92.1 80.6 69.4 235 223 755
– 96.7 17.5 – – – – 91.9 80.2 68.7 230 219 740
– 96.0 16.0 – – – – 91.7 79.7 68.0 225 214 720
– 95.0 – – – – – 91.5 79.2 67.0 220 209 705
– 94.0 – – – – – 91.2 78.5 66.0 215 204 690
– 93.5 – – – – – 90.9 78.0 65.5 210 199 675
– 92.5 – – – – – 90.6 77.5 64.5 205 195 660
– 91.5 – – – – – 90.3 77.0 63.5 200 190 640
– 90.5 – – – – – 90.0 76.4 62.5 195 185 625
– 89.5 – – – – – 89.6 75.8 61.5 190 181 610
– 88.3 – – – – – 89.3 75.2 60.4 185 176 595
– 87.1 – – – – – 89.0 74.6 59.3 180 171 575
– 86.0 – – – – – 88.5 74.0 58.6 175 166 560
– 85.0 – – – – – 88.0 73.5 58.0 170 162 545
– 83.2 – – – – – 87.5 72.5 56.4 165 156 530
– 81.7 – – – – – 87.0 71.2 54.7 160 152 510
– 80.2 – – – – – 86.5 70.0 53.0 155 147 495
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