경도환산표 및 미터일반나사
경도환산표 Hardened Steel and Hard Alloys Dph, Khn, Bhn Rockwell Scale 10 Kg 500Kg & 3000Kg C A D 15N 30N 45N G Over 80.0 92.0 86.5 96.5 92.0 87.0 - 1865 - - 79.0 91.5 85.5 - 91.5 86.5 - 1787 - - 78.0 91.0 84.5 96.0 91.0 85.5 - 1710 - - 77.0 90.5 84.0 - 90.5 84.5 - 1633 - - 76.0 90.0 83.0 95.5 90.0 83.5 - 1556 - - 75.0 89.5 82.5 - 89.0 82.5 - 1478 - - 74.0 89.0 81.5 95.0 88.5 81.5 - 1400 - - 73.0 88...