HRC/HB近似換算小竅門硬度高于20HRC ,1HRC≈10HB,硬度低于20HRC,1HRC≈11.5HB。備注:對(duì)于切削加工,基本可統(tǒng)一換算1HRC≈10HB(工件材料硬度有波動(dòng)范圍)
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