>> P.538
●경도환산표(참고)로크웰비커스경도브리넬경도로크웰경도쇼어경도HS979592918887858381807876757472716968676664636260585756555452B스케일하중980.7N직경1/16in볼——————————————————————————————A스케일하중588.4N다이아몬드원추압자85.685.084.583.983.482.882.381.881.280.780.179.679.078.578.077.476.876.375.975.274.774.173.673.172.572.071.570.970.469.9표준볼텅스텐카바이드볼———(739)(722)(705)(688)(670)(654)(634)615595577560543525512496481469455443432421409400390381371362————————————————(500)(487)(475)(464)451442432421409400390381371362C스케일경도하중1471NHRC686766656463626160595857565554535251504948474645444342414039HV940900865832800772746720697674653633613595577560544528513498484471458446434423412402392382570
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