中华人民共和国国家标准 UDC 669.35 :539.4/.5 铜合金硬度与强度换算值 GB 3771-83 Conversion of hardness and strength for copper alloys 本标准适用于黄铜（H62、HPb59一1等）和铍青铜。国家标准局1983-06-22发布 1984-04-01实施 151 GB 3771-83 硬度布氏维氏洛长表面 dio、2ds HB30D2 4d2.5 mm HV HRC HRA HRB HRF HR15N HR30N HR45N 90.0 6.159 90.5 一 53.7 87.1 91.0 6.129 91.5 53.9 87.2 92.0 6.100 92.6 一 54.2 87.4 93.0 6.071 93.6 54.5 87.6 94.0 6.042 94.7 - 54.8 87,7 95.0 6.014 95.7 - 55.1 87.9 96.0 5.986 96.8 55.5 88.1 97.0 5.958 97.8 55.8 88.3 98.0 5.931 98.9 56.2 88.5 99.0 5.904 99.9 56.6 88.8 100.0 5.878 101.0 57.1 89.1 101.0 5.852 102.0 57.5 89.3 102.0 5.826 103.1 " 58.0 89.6 -. 103.0 5.801 104.1 - 58.5 89.9 104.0 5.775 105.1 - 58.9 90.1 一 105.0 5.751 106.2 59.4 90.4 106.0 5.726 107.2 60.0 90.7 107.0 5.702 108.3 60.5 0°16 108.0 5.678 109.3 61.0 91.3 - 109.0 5.654 110.4 61.5 91.6 152