热轧不等边角钢截面规格及理论重量表(706-2016)

('热轧不等边角钢截面规格及理论重量表其中参数如需查询请参阅《热轧型钢》GB/T706-2016）。说明：B——长边宽度；b——短边宽度；d——边厚度；r——内圆弧半径；r1——边端圆弧半径；X0——重心距离；Y0——重心距离不等边角钢截面尺寸、截面面积及理论重量表型号尺寸（mm）截面面积(cm2)理论重量(kg/m)外表面积(m2/m)Bbdr2.5/1.6251633.51.1620.910.08041.4991.180.0793.2/2322031.4921.170.10241.9391.520.1014/2.54025341.8901.480.12742.4671.940.1274.5/2.84528352.1491.690.14342.8062.200.1435/3.2503235.52.4311.910.16143.1772.490.1605.6/3.65636362.7432.150.18143.5902.820.18054.4153.470.1806.3/46340474.0583.190.2021型号尺寸（mm）截面面积(cm2)理论重量(kg/m)外表面积(m2/m)Bbdr54.9933.920.20265.9084.640.20176.8025.340.2017/4.5704547.54.5533.570.22655.6094.400.22566.6445.220.22577.6586.010.2257.5/57550586.1264.810.24567.2605.700.24589.4677.430.2441011.599.100.2448/5805056.3755.000.25567.5605.930.25578.7246.850.25589.8677.750.2549/5.69056597.2125.660.28768.5576.720.28679.8817.760.286811.188.780.28610/6.3100636109.6187.550.320711.118.720.320812.589.880.3191015.4712.100.31910/81008061010.648.350.354712.309.660.354813.9410.90.3531017.1713.50.3532型号尺寸（mm）截面面积(cm2)理论重量(kg/m)外表面积(m2/m)Bbdr11/711070610.648.350.354712.309.660.354813.9410.90.3531017.1713.50.35312.5/81258071114.1011.10.403815.9912.60.4031019.7115.50.402122.3318.30.40214/91409081218.0414.20.4531022.2617.50.4521226.4020.70.4511430.4623.90.45115/915090818.8414.80.4731022.2618.30.4721227.6021.70.4711431.8625.00.4711533.9525.70.4711636.0328.30.47016/10160100101325.3219.90.5121230.0523.60.5111434.7127.20.5101639.2830.80.51018/11180110101428.3722.30.5711233.7126.50.5711438.9730.60.5701644.1434.60.56920/12.52001251237.9129.80.6413型号尺寸（mm）截面面积(cm2)理论重量(kg/m)外表面积(m2/m)Bbdr1443.8734.40.6401649.7439.00.6391855.5343.60.639角钢尺寸、外形及允许偏差项目允许偏差边宽度(B，b)b≤56±0.856200±3.5边厚度(d)b≤56±0.456200±1.4注明不等边角钢按长边宽度。重量及允许偏差型钢重量允许偏差应不超过±5%，理论重量按密度7.85g/cm3计算。重量偏差（%）按下式计算。重量允许偏差适用于同一尺寸且质量超过1吨的一批，当一批同一尺寸的质量不大于1吨但根数大于10根时也适用。重量偏差=（实际重量-理论重量）÷理论重量×100%不等边角钢的截面面积计算公式：d(B+b-d)+0.215(r2-2r12)规格表示方法不等边角钢：“∠”与长边宽度值×短边宽度值×边厚度值如：∠160×100×16。表面质量4型钢表面不应有裂缝、折叠、结疤、分层和夹杂。型钢表面允许有局部发纹、凹坑、麻点、划痕和氧化铁皮压入等缺陷存在，但不应超出型钢尺寸深度的五倍，清除后的型钢尺寸不应超出尺寸的允许偏差。型钢端部不应有大于5mm的毛刺5',)