Tvrdoměry Rockwell, Brinell, Vickers, SHORE, přenosné, stolní

Domů Návody, PŘEVODY
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Tabulka srovnání tvrdosti podle různých metod měření

Srovnávat hodnoty tvrdosti lze jen při použití stejné metody a stejného zkušebního zatížení. Převody hodnot tvrdosti podle různých metod jsou pouze orientační. Takové převody tvrdosti jsou možné jen na základě provedených porovnávacích zkoušek.

Převod tvrdosti je obsahem normy ČSN EN ISO 18265 (420379) Kovové materiály - Převod hodnot tvrdosti (ISO 18265:2003).

Rockwell Rockwell Superficial Brinell Vickers Shore
A B C D E F 15-N 30-N 45-N 30-T 3000 kg 500 kg 136 Approx Tensile Strength (psi)
60kg Brale 100kg 1/16" Ball 150kg Brale 100kg Brale 100kg 1/8" Ball 60kg 1/16" Ball 15kg Brale 30kg Brale 45kg Brale 30 kg 1/16" Ball 10mm Ball Steel 10mm Ball Steel Diamond Pyramid Sciero-scope
86.5 --- 70 78.5 --- --- 94.0 86.0 77.6 --- --- --- 1076 101 ---
86.0 --- 69 77.7 --- --- 93.5 85.0 76.5 --- --- --- 1044 99 ---
85.6 --- 68 76.9 --- --- 93.2 84.4 75.4 --- --- --- 940 97 ---
85.0 --- 67 76.1 --- --- 92.9 83.6 74.2 --- --- --- 900 95 ---
84.5 --- 66 75.4 --- --- 92.5 82.8 73.2 --- --- --- 865 92 ---
83.9 --- 65 74.5 --- --- 92.2 81.9 72.0 --- 739 --- 832 91 ---
83.4 --- 64 73.8 --- --- 91.8 81.1 71.0 --- 722 --- 800 88 ---
82.8 --- 63 73.0 --- --- 91.4 80.1 69.9 --- 705 --- 772 87 ---
82.3 --- 62 72.2 --- --- 91.1 79.3 68.8 --- 688 --- 746 85 ---
81.8 --- 61 71.5 --- --- 90.7 78.4 67.7 --- 670 --- 720 83 ---
81.2 --- 60 70.7 --- --- 90.2 77.5 66.6 --- 654 --- 697 81 320,000
80.7 --- 59 69.9 --- --- 89.8 76.6 65.5 --- 634 --- 674 80 310,000
80.1 --- 58 69.2 --- --- 89.3 75.7 64.3 --- 615 --- 653 78 300,000
79.6 --- 57 68.5 --- --- 88.9 74.8 63.2 --- 595 --- 633 76 290,000
79.0 --- 56 67.7 --- --- 88.3 73.9 62.0 --- 577 --- 613 75 282,000
78.5 120 55 66.9 --- --- 87.9 73.0 60.9 --- 560 --- 595 74 274,000
78.0 120 54 66.1 --- --- 87.4 72.0 59.8 --- 543 --- 577 72 266,000
77.4 119 53 65.4 --- --- 86.9 71.2 58.6 --- 525 --- 560 71 257,000
76.8 119 52 64.6 --- --- 86.4 70.2 57.4 --- 500 --- 544 69 245,000
76.3 118 51 63.8 --- --- 85.9 69.4 56.1 --- 487 --- 528 68 239,000
75.9 117 50 63.1 --- --- 85.5 68.5 55.0 --- 475 --- 513 67 233,000
75.2 117 49 62.1 --- --- 85.0 67.6 53.8 --- 464 --- 498 66 227,000
74.7 116 48 61.4 --- --- 84.5 66.7 52.5 --- 451 --- 484 64 221,000
74.1 116 47 60.8 --- --- 83.9 65.8 51.4 --- 442 --- 471 63 217,000
73.6 115 46 60.0 --- --- 83.5 64.8 50.3 --- 432 --- 458 62 212,000
73.1 115 45 59.2 --- --- 83.0 64.0 49.0 --- 421 --- 446 60 206,000
72.5 114 44 58.5 --- --- 82.5 63.1 47.8 --- 409 --- 434 58 200,000
72.0 113 43 57.7 --- --- 82.0 62.2 46.7 --- 400 --- 423 57 196,000
71.5 113 42 56.9 --- --- 81.5 61.3 45.5 --- 390 --- 412 56 191,000
70.9 112 41 56.2 --- --- 80.9 60.4 44.3 --- 381 --- 402 55 187,000
70.4 112 40 55.4 --- --- 80.4 59.5 43.1 --- 371 --- 392 54 182,000
69.9 111 39 54.6 --- --- 79.9 58.6 41.9 --- 362 --- 382 52 177,000
69.4 110 38 53.8 --- --- 79.4 57.7 40.8 --- 353 --- 372 51 173,000
68.9 110 37 53.1 --- --- 78.8 56.8 39.6 --- 344 --- 363 50 169,000
68.4 109 36 52.3 --- --- 78.3 55.9 38.4 --- 336 --- 354 49 165,000
67.9 109 35 51.5 --- --- 77.7 55.0 37.2 --- 327 --- 345 48 160,000
67.4 108 34 50.8 --- --- 77.2 54.2 36.1 --- 319 --- 336 47 156,000
66.8 108 33 50.0 --- --- 76.6 53.3 34.9 --- 311 --- 327 46 152,000
66.3 107 32 49.2 --- --- 76.1 52.1 33.7 --- 301 --- 318 44 147,000
65.8 106 31 48.4 --- --- 75.6 51.3 32.5 --- 294 --- 310 43 144,000
65.3 105 30 47.7 --- --- 75.0 50.4 31.3 --- 286 --- 302 42 140,000
64.7 104 29 47.0 --- --- 74.5 49.5 30.1 --- 279 --- 294 41 137,000
64.3 104 28 46.1 --- --- 73.9 48.6 28.9 --- 271 --- 286 41 133,000
63.8 103 27 45.2 --- --- 73.3 47.7 27.8 --- 264 --- 279 40 129,000
63.3 103 26 44.6 --- --- 72.8 46.8 26.7 --- 258 --- 272 39 126,000
62.8 102 25 43.8 --- --- 72.2 45.9 25.5 --- 253 --- 266 38 124,000
62.4 101 24 43.1 --- --- 71.6 45.0 24.3 --- 247 --- 260 37 121,000
62.0 100 23 42.1 --- --- 71.0 44.0 23.1 82.0 240 201 254 36 118,000
61.5 99 22 41.6 --- --- 70.5 43.2 22.0 81.5 234 195 248 35 115,000
61.0 98 21 40.9 --- --- 69.9 42.3 20.7 81.0 228 189 243 35 112,000
60.5 97 20 40.1 --- --- 69.4 41.5 19.6 80.5 222 184 238 34 109,000
59.0 96 18 --- --- --- --- --- --- 80.0 216 179 230 33 106,000
58.0 95 16 --- --- --- --- --- --- 79.0 210 175 222 32 103,000
57.5 94 15 --- --- --- --- --- --- 78.5 205 171 213 31 100,000
57.0 93 13 --- --- --- --- --- --- 78.0 200 167 208 30 98,000
56.5 92 12 --- --- --- --- --- --- 77.5 195 163 204 29 96,000
56.0 91 10 --- --- --- --- --- --- 77.0 190 160 196 28 93,000
55.5 90 9 --- --- --- --- --- --- 76.0 185 157 192 27 91,000
55.0 89 8 --- --- --- --- --- --- 75.5 180 154 188 26 88,000
54.0 88 7 --- --- --- --- --- --- 75.0 176 151 184 26 86,000
53.5 87 6 --- --- --- --- --- --- 74.5 172 148 180 26 84,000
53.0 86 5 --- --- --- --- --- --- 74.0 169 145 176 25 83,000
52.5 85 4 --- --- --- --- --- --- 73.5 165 142 173 25 81,000
52.0 84 3 --- --- --- --- --- --- 73.0 162 140 170 25 79,000
51.0 83 2 --- --- --- --- --- --- 72.0 159 137 166 24 78,000
50.5 82 1 --- --- --- --- --- --- 71.5 156 135 163 24 76,000
50.0 81 0 --- --- --- --- --- --- 71.0 153 133 160 24 75,000
49.5 80 --- --- --- --- --- --- --- 70.0 150 130 --- --- 73,000
49.0 79 --- --- --- --- --- --- --- 69.5 147 128 --- --- ---
48.5 78 --- --- --- --- --- --- --- 69.0 144 126 --- --- ---
48.0 77 --- --- --- --- --- --- --- 68.0 141 124 --- --- ---
47.0 76 --- --- --- --- --- --- --- 67.5 139 122 --- --- ---
46.5 75 --- --- --- 99.5 --- --- --- 67.0 137 120 --- --- ---
46.0 74 --- --- --- 99.0 --- --- --- 66.0 135 118 --- --- ---
45.5 73 --- --- --- 98.5 --- --- --- 65.5 132 116 --- --- ---
45.0 72 --- --- --- 98.0 --- --- --- 65.0 130 114 --- --- ---
44.5 71 --- --- 100.0 97.5 --- --- --- 64.2 127 112 --- --- ---
44.0 70 --- --- 99.5 97.0 --- --- --- 63.5 125 110 --- --- ---
43.5 69 --- --- 99.0 96.0 --- --- --- 62.8 123 109 --- --- ---
43.0 68 --- --- 98.0 95.5 --- --- --- 62.0 121 107 --- --- ---
42.5 67 --- --- 97.5 95.0 --- --- --- 61.4 119 106 --- --- ---
42.0 66 --- --- 97.0 94.5 --- --- --- 60.5 117 104 --- --- ---
41.8 65 --- --- 96.0 94.0 --- --- --- 60.1 116 102 --- --- ---
41.5 64 --- --- 95.5 93.5 --- --- --- 59.5 114 101 --- --- ---
41.0 63 --- --- 95.0 93.0 --- --- --- 58.7 112 99 --- --- ---
40.5 62 --- --- 94.5 92.0 --- --- --- 58.0 110 98 --- --- ---
40.0 61 --- --- 93.5 91.5 --- --- --- 57.3 108 96 --- --- ---
39.5 60 --- --- 93.0 91.0 --- --- --- 56.5 107 95 --- --- ---
39.0 59 --- --- 92.5 90.5 --- --- --- 55.9 106 94 --- --- ---
38.5 58 --- --- 92.0 90.0 --- --- --- 55.0 104 92 --- --- ---
38.0 57 --- --- 91.0 89.5 --- --- --- 54.6 102 91 --- --- ---
37.8 56 --- --- 90.5 89.0 --- --- --- 54.0 101 90 --- --- ---
37.5 55 --- --- 90.0 88.0 --- --- --- 53.2 99 89 --- --- ---
37.0 54 --- --- 89.5 87.5 --- --- --- 52.5 --- 87 --- --- ---
36.5 53 --- --- 89.0 87.0 --- --- --- 51.8 --- 86 --- --- ---
36.0 52 --- --- 88.0 86.5 --- --- --- 51.0 --- 85 --- --- ---
35.5 51 --- --- 87.5 86.0 --- --- --- 50.4 --- 84 --- --- ---
35.0 50 --- --- 87.0 85.5 --- --- --- 49.5 --- 83 --- --- ---
34.8 49 --- --- 86.5 85.0 --- --- --- 49.1 --- 82 --- --- ---
34.5 48 --- --- 85.5 84.5 --- --- --- 48.5 --- 81 --- --- ---
34.0 47 --- --- 85.0 84.0 --- --- --- 47.7 --- 80 --- --- ---
33.5 46 --- --- 84.5 83.0 --- --- --- 47.0 --- 79 --- --- ---
33.0 45 --- --- 84.0 82.5 --- --- --- 46.2 --- 79 --- --- ---
32.5 44 --- --- 83.5 82.0 --- --- --- 45.5 --- 78 --- --- ---
32.0 43 --- --- 82.5 81.5 --- --- --- 44.8 --- 77 --- --- ---
31.5 42 --- --- 82.0 81.0 --- --- --- 44.0 --- 76 --- --- ---
31.0 41 --- --- 81.5 80.5 --- --- --- 43.4 --- 75 --- --- ---
30.8 40 --- --- 81.0 79.5 --- --- --- 43.0 --- 74 --- --- ---
30.5 39 --- --- 80.0 79.0 --- --- --- 42.1 --- 74 --- --- ---
30.0 38 --- --- 79.5 78.5 --- --- --- 41.5 --- 73 --- --- ---
29.5 37 --- --- 79.0 78.0 --- --- --- 40.7 --- 72 --- --- ---
29.0 36 --- --- 78.5 77.5 --- --- --- 40.0 --- 71 --- --- ---
28.5 35 --- --- 78.0 77.0 --- --- --- 39.3 --- 71 --- --- ---
28.0 34 --- --- 77.0 76.5 --- --- --- 38.5 --- 70 --- --- ---
27.8 33 --- --- 76.5 75.5 --- --- --- 37.9 --- 69 --- --- ---
27.5 32 --- --- 76.0 75.0 --- --- --- 37.5 --- 68 --- --- ---
27.0 31 --- --- 75.5 74.5 --- --- --- 36.6 --- 68 --- --- ---
26.5 30 --- --- 75.0 74.0 --- --- --- 36.0 --- 67 --- --- ---
26.0 29 --- --- 74.0 73.5 --- --- --- 35.2 --- 66 --- --- ---
25.5 28 --- --- 73.5 73.0 --- --- --- 34.5 --- 66 --- --- ---
25.0 27 --- --- 73.0 72.5 --- --- --- 33.8 --- 65 --- --- ---
24.5 26 --- --- 72.5 72.0 --- --- --- 33.1 --- 65 --- --- ---
24.2 25 --- --- 72.0 71.0 --- --- --- 32.4 --- 64 --- --- ---
24.0 24 --- --- 71.0 70.5 --- --- --- 32.0 --- 64 --- --- ---
23.5 23 --- --- 70.5 70.0 --- --- --- 31.1 --- 63 --- --- ---
23.0 22 --- --- 70.0 69.5 --- --- --- 30.4 --- 63 --- --- ---
22.5 21 --- --- 69.5 69.0 --- --- --- 29.7 --- 62 --- --- ---
22.0 20 --- --- 68.5 68.5 --- --- --- 29.0 --- 62 --- --- ---
21.5 19 --- --- 68.0 68.0 --- --- --- 28.1 --- 61 --- --- ---
21.2 18 --- --- 67.5 67.0 --- --- --- 27.4 --- 61 --- --- ---
21.0 17 --- --- 67.0 66.5 --- --- --- 26.7 --- 60 --- --- ---
20.5 16 --- --- 66.5 66.0 --- --- --- 26.0 --- 60 --- --- ---
20.0 15 --- --- 65.5 65.5 --- --- --- 25.3 --- 59 --- --- ---
--- 14 --- --- 65.0 65.0 --- --- --- 24.6 --- 59 --- --- ---
--- 13 --- --- 64.5 64.5 --- --- --- 23.9 --- 58 --- --- ---
--- 12 --- --- 64.0 64.0 --- --- --- 23.5 --- 58 --- --- ---
--- 11 --- --- 63.5 63.5 --- --- --- 22.6 --- 57 --- --- ---
--- 10 --- --- 62.5 63.0 --- --- --- 21.9 --- 57 --- --- ---
--- 9 --- --- 62.0 62.0 --- --- --- 21.2 --- 56 --- --- ---
--- 8 --- --- 61.5 61.5 --- --- --- 20.5 --- 56 --- --- ---
--- 7 --- --- 61.0 61.0 --- --- --- 19.8 --- 56 --- --- ---
--- 6 --- --- 60.5 60.5 --- --- --- 19.1 --- 55 --- --- ---
--- 5 --- --- 60.0 60.0 --- --- --- 18.4 --- 55 --- --- ---
--- 4 --- --- 59.0 59.5 --- --- --- 18.0 --- 55 --- --- ---
--- 3 --- --- 58.5 59.0 --- --- --- 17.1 --- 54 --- --- ---
--- 2 --- --- 58.0 58.0 --- --- --- 16.4 --- 54 --- --- ---
--- 1 --- --- 57.5 57.5 --- --- --- 15.7 --- 53 --- --- ---
--- 0 --- --- 57.0 57.0 --- --- --- 15.0 --- 53 --- --- ---
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