冷拉圆钢、方钢、六角钢的尺寸许可误差级别实用范围

　冷拉圆钢、方钢、六角钢的尺寸许可误差级别实用范围截面外形圆 钢方 钢六角钢实用级别8、9、10、11、1210、11、12、13lO、11、12、13银亮钢的尺寸规格圆钢直径d／mm截面面积／mm2理论质量／(kg／lOOOm)圆钢直径d截面面积／mm2理论质量.／(kg／lOOOm)O 600.28272.2191.501.76713.87O 63O.31172.4441.602.00115.78O 70O.38483.0241.802.54519.940.80O.50273.952 003.14224.650 900.63624.992.203.80129.831.000.78546.172 504.90938.541.10O.95037 462.806.15848.361.201.1318.883.007.06955.501.401.53912.083.208.04263.113.509.62175.5224.O452.435504.0012.5798.625.0490.938504.5015.90124.826.0530.941705.0019.63154.228.O615.848305.5023.76187.26.0028.27221.930.0706.955506.3031.17244.432.0804.263107.O38.48302.133.0855.367107.544.1834734.O907.971308.O50.2739535.O962.175528.556.7544536.O1017.879909.O63.62491938.0113489009.570.8855640.O1257989610.O78.5461742.O13851090010.586.5968045.015901250011.O95.0374648.O18101420011.5103.981550.019631542012.O113.188853.022061730013.O132.7104055.023761860014.0153.9121056.O24631930015.0176.7139058.O26422070016.0201.1158060.028272220017.0227.0178063.031172450018.0254.5200065.033182600019.0283.5223068.O36322850020.0314.2247070.O38483020021.O346.4272075.O44183470022.O380.129s080.O502739500注：1.银亮钢的交货状况分为：抛光(代号为P)、磨光(M)、磨拉(ML)及切削(Q)。交货状况应在合同中注明，未注明者按切削或磨光状况交货。 2.表中的理论质量是按密度为7.85g／cm3计算的。