c
公称直径 Nominal Diameter (mm) 公称截面积 Nomial area (mm2) 公称强度Nominal strength (Mpa) 防腐润滑油质量Anticorrosive grease weight 护套厚度不小于W3/(g/m) Cover thickness μ κ 9.5 54.8 1720 32 0.8 0.04~0.10 0.003~0.004 1860 1960 12.7 98.7 1720 43 1 0.04~0.10 0.003~0.004 1860 1960 15.2 140 1570 50 1 0.04~0.10 0.003~0.004 1670 1720 1860 1960 15.7 150 1770 53 1 0.04~0.10 0.003~0.004 1860