(一）圆钢规格、重量表[冶标（YB）158-63]直径(mm)截面面积(cm2)理论重量(kg/m)直径(mm)截面面积(cm2)理论重量(kg/m)50.19630.1544515.905.60.24630.1934818.1060.28270.2225019.646.30.31170.2455322.0670.38480.3025624.6380.50270.31/7956028.2790.63590.4996331.17100.78540.6176533.18110.95030.7467038.48121.1310.8887544.18131.3271.048050.27141.5391.218556.751.7671.32/799063.62162.0111.589570.88172.2701.7810078.54182.5452.0010586.59192.8352.2311095.03203.1422.4.10213.4642.7.72223.8012.93/7.73244.5243.5.72254.9093.8.72265.8094.1.06286.1584.8.98307.0695.5.47328.0426.3.53349.0797.14/7.163610.187.9.363811.348.9.134012.579.8.394213.8510.8.88注：圆钢的长度
规定
关于下班后关闭电源的规定党章中关于入党时间的规定公务员考核规定下载规定办法文件下载宁波关于闷顶的规定
如下A.通常长度（非定尺的）普通钢：直径≤25mm⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯长5~10m直径26~48mm⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯长4~9m12.4814.2115.4217.3219.35/7322.1924.4726.0530.2134.6839.4644.5549.9455.6461.6567.9774.6088.7896.33104.20120.84138.72157.83178.18199.76222.56/77246.62271.89298.40355.13385.84直径50~110mm⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯长4~8m直径≥120mm⋯.⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯长3~6m优质钢：各种直径⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯长2~6mB.定尺长度（
合同
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中确定）C.倍尺长度（合同中确定）短尺圆钢的交货数量不得超过一批订货总量的10%。普通钢短尺不短于2.5m，优质钢短尺不短于1.5m7/7
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