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Hardness and Tensile Strength of Steel Pipe

Date:2018-01-22    View:349      Tag:Hardness and Tensile Strength of Steel Pipe

When hardness of steel pipe is below 500HB, which is proportional to the tensile strength and hardness. Hardness with tempering temperature decreases, but in the state as well as the quenching and tempering below 300 ℃, the hardness and tensile strength of the relationship is difficult established. When the tempering temperature at around 300 ℃, kg / m ㎡ with HRC is a correlation between that high hardness, tensile strength is high; low hardness, tensile strength is low.



HB HRC HV Tensile Strength
496 51 528 264
481 50 513 255
469 49 498 246
455 48 484 238
443 47 471 229
432 46 458 221
421 45 446 215
409 44 434 208
400 43 423 201
390 42 412 194
381 41 402 188
371 40 392 182
362 39 382 177
353 38 372 171
344 37 363 166
336 36 354 161
327 35 345 156
319 34 336 152
311 33 327 149
301 32 318 146
294 31 310 141
286 30 302 138
279 29 294 135
271 28 286 131
264 27 279 128
258 26 272 125
253 25 266 123
247 24 260 119
243 23 254 117
237 22
248 115
231 21
243 112
226 20
238 110
219 - 230 109
212 -
222 104
203 - 213 102
194 - 204 100

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