Техническая информация Sumitomo - страница 26

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  References   ■ Hardness Scale Comparison Chart ● Approximate Corresponding Values for Steel Hardness on the Brinell Scale Rockwell Hardness Rockwell Hardness Brinell A B C D Vickers Shore Traverse Brinell A B C D Vickers Shore Traverse Hardness Scale Scale Scale Scale Hardness Hardness Rupture Hardness Scale Scale Scale Scale Hardness Hardness Rupture 3,000kgf 60kgf 100kgf 150kgf 100kgf 50kgf Strength 3,000kgf 60kgf 100kgf 150kgf 100kgf 50kgf Strength brale 1/10in brale brale （GPa） brale 1/10in brale brale （GPa） Ball Ball HB HRA HRB HRC HRD HV HS HB HRA HRB HRC HRD HV HS — 85.6 — 68.0 76.9 940 97 — 321 67.5 (108.0) 34.3 50.1 339 47 1.06 — 85.3 — 67.5 76.5 920 96 — 311 66.9 (107.5) 33.1 50.0 328 46 1.03 — 85.0 — 67.0 76.1 900 95 — 302 66.3 (107.0) 32.1 49.3 319 45 1.01 767 84.7 — 66.4 75.7 880 93 — 293 65.7 (106.0) 30.9 48.3 309 43 0.97 757 84.4 — 65.9 75.3 860 92 — 285 65.3 (105.5) 29.9 47.6 301 — 0.95 745 84.1 — 65.3 74.8 840 91 — 277 64.6 (104.5) 28.8 46.7 292 41 0.92 733 83.8 — 64.7 74.3 820 90 — 269 64.1 (104.0) 27.6 45.9 284 40 0.89 722 83.4 — 64.0 73.8 800 88 — 262 63.6 (103.0) 26.6 45.0 276 39 0.87 712 — — — — — — — 255 63.0 (102.0) 25.4 44.2 269 38 0.84 710 83.0 — 63.3 73.3 780 87 — 248 62.5 (101.0) 24.2 43.2 261 37 0.82 698 82.6 — 62.5 72.6 760 86 — 241 61.8 100.0 22.8 42.0 253 36 0.80 684 82.2 — 61.8 72.1 740 — — 235 61.4 99.0 21.7 41.4 247 35 0.78 682 82.2 — 61.7 72.0 737 84 — 229 60.8 98.2 20.5 40.5 241 34 0.76 670 81.8 — 61.0 71.5 720 83 — 223 — 97.3 (18.8) — 234 — — 656 81.3 — 60.1 70.8 700 — — 217 — 96.4 (17.5) — 228 33 0.73 653 81.2 — 60.0 70.7 697 81 — 212 — 95.5 (16.0) — 222 — 0.71 647 81.1 — 59.7 70.5 690 — — 207 — 94.6 (15.2) — 218 32 0.69 638 80.8 — 59.2 70.1 680 80 — 201 — 93.8 (13.8) — 212 31 0.68 630 80.6 — 58.8 69.8 670 — — 197 — 92.8 (12.7) — 207 30 0.66 627 80.5 — 58.7 69.7 667 79 — 192 — 91.9 (11.5) — 202 29 0.64 601 79.8 — 57.3 68.7 640 77 — 187 — 90.7 (10.0) — 196 — 0.62 578 79.1 — 56.0 67.7 615 75 — 183 — 90.0 (9.0) — 192 28 0.62 555 78.4 — 54.7 66.7 591 73 2.06 179 — 89.0 (8.0) — 188 27 0.60 534 77.8 — 53.5 65.8 569 71 1.98 174 — 87.8 (6.4) — 182 — 0.59 514 76.9 — 52.1 64.7 547 70 1.89 170 — 86.8 (5.4) — 178 26 0.57 495 76.3 — 51.0 63.8 528 68 1.82 167 — 86.0 (4.4) — 175 — 0.56 477 75.6 — 49.6 62.7 508 66 1.73 163 — 85.0 (3.3) — 171 25 0.55 461 74.9 — 48.5 61.7 491 65 1.67 156 — 82.9 (0.9) — 163 — 0.52 444 74.2 — 47.1 60.8 472 63 1.59 149 — 80.8 — — 156 23 0.50 429 73.4 — 45.7 59.7 455 61 1.51 143 — 78.7 — — 150 22 0.49 415 72.8 — 44.5 58.8 440 59 1.46 137 — 76.4 — — 143 21 0.46 N 401 72.0 — 43.1 57.8 425 58 1.39 131 — 74.0 — — 137 — 0.45 388 71.4 — 41.8 56.8 410 56 1.33 126 — 72.0 — — 132 20 0.43 Technical Guidance / References 375 70.6 — 40.4 55.7 396 54 1.26 121 — 69.8 — — 127 19 0.41 363 70.0 — 39.1 54.6 383 52 1.22 116 — 67.6 — — 122 18 0.40 352 69.3 (110.0) 37.9 53.8 372 51 1.18 111 — 65.7 — — 117 15 0.38 341 68.7 (109.0) 36.6 52.8 360 50 1.13 1) Figures within the ( ) are not commonly used 2) Rockwell A, C and D scales utilise a diamond brale 331 68.1 (108.5) 35.5 51.9 350 48 1.10 3) This chart was taken from the JIS Iron and Steel Handbook (1980) N34