Manual Correction: Techniques for Thin & Thick Steel Plates, and Profiles
Have you ever wondered why sheet metal parts sometimes don’t fit together perfectly? This article explores the fascinating world of…
Steel Material Hardness Comparison Table
| Brinell Hardness HBW | Rockwell Hardness | Vickers Hardness HV | |
| HRA | HRC | ||
| 86.6 | 70 | 1037 | |
| 86.3 | 69.5 | 1017 | |
| 86.1 | 69 | 997 | |
| 85.8 | 68.5 | 978 | |
| 85.5 | 68 | 959 | |
| 85.2 | 67.5 | 941 | |
| 85 | 67 | 923 | |
| 84.7 | 66.5 | 906 | |
| 84.4 | 66 | 889 | |
| 84.1 | 65.5 | 872 | |
| 83.9 | 65 | 856 | |
| 83.6 | 64.5 | 840 | |
| 83.3 | 64 | 825 | |
| 83.1 | 63.5 | 810 | |
| 82.8 | 63 | 795 | |
| 82.5 | 62.5 | 780 | |
| 82.2 | 62 | 766 | |
| 82 | 61.5 | 752 | |
| 81.7 | 61 | 739 | |
| 81.4 | 60.5 | 726 | |
| 81.2 | 60 | 713 | |
| 80.9 | 59.5 | 700 | |
| 80.6 | 59 | 688 | |
| 80.3 | 58.5 | 676 | |
| 80.1 | 58 | 664 | |
| 79.8 | 57.5 | 653 | |
| 79.5 | 57 | 642 | |
| 79.3 | 56.5 | 631 | |
| 79 | 56 | 620 | |
| 78.7 | 55.5 | 609 | |
| 78.5 | 55 | 599 | |
| 78.2 | 54.5 | 589 | |
| 77.9 | 54 | 579 | |
| 77.7 | 53.5 | 570 | |
| 77.4 | 53 | 561 | |
| 77.1 | 52.5 | 551 | |
| 76.9 | 52 | 543 | |
| 76.6 | 51.5 | 534 | |
| 518 | 76.3 | 51 | 525 |
| 510 | 76.1 | 50.5 | 517 |
| 502 | 75.8 | 50 | 509 |
| 494 | 75.5 | 49.5 | 501 |
| 486 | 75.3 | 49 | 493 |
| 478 | 75 | 48.5 | 485 |
| 470 | 74.7 | 48 | 478 |
| 463 | 74.5 | 47.5 | 470 |
| 455 | 74.2 | 47 | 463 |
| 448 | 73.9 | 46.5 | 456 |
| 436 | 73.7 | 46 | 449 |
| 435 | 73.4 | 45.5 | 443 |
| 428 | 73.2 | 45 | 436 |
| 422 | 72.9 | 44.5 | 429 |
| 415 | 72.6 | 44 | 423 |
| 409 | 72.4 | 43.5 | 417 |
| 403 | 72.1 | 43 | 411 |
| 397 | 71.8 | 42.5 | 405 |
| 392 | 71.6 | 42 | 399 |
| 386 | 71.3 | 41.5 | 393 |
| 381 | 71.1 | 41 | 388 |
| 375 | 70.8 | 40.5 | 382 |
| 370 | 70.5 | 40 | 377 |
| 365 | 70.3 | 39.5 | 372 |
| 360 | 70 | 39 | 367 |
| 355 | 38.5 | 362 | |
| 350 | 38 | 351 | |
| 345 | 37.5 | 352 | |
| 341 | 37 | 347 | |
| 336 | 36.5 | 342 | |
| 332 | 36 | 338 | |
| 327 | 35.5 | 333 | |
| 323 | 35 | 329 | |
| 318 | 34.5 | 324 | |
| 314 | 34 | 320 | |
| 310 | 33.5 | 316 | |
| 306 | 33 | 312 | |
| 302 | 32.5 | 308 | |
| 298 | 32 | 304 | |
| 294 | 31.5 | 300 | |
| 291 | 31 | 296 | |
| 287 | 30.5 | 292 | |
| 283 | 30 | 289 | |
| 280 | 29.5 | 285 | |
| 276 | 29 | 281 | |
| 273 | 28.5 | 278 | |
| 269 | 28 | 274 | |
| 266 | 27.5 | 271 | |
| 263 | 27 | 268 | |
| 260 | 26.5 | 264 | |
| 257 | 26 | 261 | |
| 254 | 25.5 | 258 | |
| 251 | 25 | 255 | |
| 248 | 24.5 | 252 | |
| 245 | 24 | 249 | |
| 242 | 23.5 | 246 | |
| 240 | 23 | 243 | |
| 237 | 22.5 | 240 | |
| 234 | 22 | 237 | |
| 232 | 21.5 | 234 | |
| 229 | 21 | 231 | |
| 227 | 20.5 | 229 | |
| 225 | 20 | 226 | |
| 222 | 19.5 | 223 | |
| 220 | 19 | 221 | |
| 218 | 18.5 | 218 | |
| 216 | 18 | 216 | |
| 214 | 17.5 | 214 | |
| 211 | 17 | 211 | |
Note:
1. Brinell Hardness: Mainly used to measure the hardness of castings, forgings, non-ferrous metal parts, hot-rolled materials, and annealed parts.
2. Rockwell Hardness: HRA is mainly used for high hardness specimens, measuring materials and surface hardness above 67HRC, such as hard alloys, nitrided steel, etc., with a measurement range >70HRA. HRC is mainly used for the hardness measurement of steel parts (such as carbon steel, tool steel, alloy steel, etc.) after quenching or tempering, with a measurement range of 20~67HRC.
3. Vickers Hardness: Used to determine the hardness of small parts and steel plate components, and can also be used to measure the hardness of surface-hardened components such as carburizing, carbonitriding, and nitriding.
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