槽钢标准.doc

GB/T 707-1988 热轧槽钢尺寸、外形、重量及允许偏差 GB/T 707-1988 热轧槽钢尺寸、外形、重量及允许偏差1 尺寸及允许偏差1)截面尺寸及允许偏差槽钢的截面图示及标注符号如图1所示。h-高度；b-腿宽度；d-腰厚度；t-平均腿厚度；r-内圆弧半径；r1-腿端腿端圆弧半径：I-惯性矩；W-截面系数；i-惯性半径；Z0-YY轴与Y1Y1轴间距图1槽钢的尺寸、截面面积、理论重量及截面特性参数应符合表1的规定。表1型号尺寸，mm截面面积 cm2理论重量 kg/m参考数值hbdtrr1X-XY-YY1-Y1Z0 cmWx,cm3Ix,cm4ix,cmW,cm3I,cm4i,cmI1,cm4550374.5773.56.9285.43810.4261.943.558.31.120.91.356.363404.87.57.53.88.4516.63416.150.82.454.511.91.1928.41.3688043588410.2488.04525.31013.155.7916.61.2737.41.4310100485.38.58.54.212.74810.00739.71983.957.825.61.4154.91.5212.6126535.5994.515.69212.31862.13914.9510.2381.5777.11.5914a1405869.59.54.818.51614.53580.55645.521353.21.71071.7114b1406089.59.54.821.31616.73387.16095.3514.161.11.691211.6716a160636.51010521.96217.241088665.2816.373.31.831441.816160658.51010525.16219.7521179356.117.683.41.821611.7518a18068710.510.55.225.69920042098.61.961901.881818070910.510.55.229.2992315213706.8421.51111.952101.8420a20073711115.528.83722.63717817807.8624.21282.112442.012020075911115.532.83725.77719119107.6425.91442.092681.9522a22077711.511.55.831.84624.99921823908.6728.21582.232982.12222079911.511.55.836.24628.45323425708.4230.11762.213262.0325a2507871212634.91727.4127033709.8230.61762.243222.0725b2508091212639.91731.33528235309.4132.71962.223531.9825c25082111212644.91735.2629536909.0735.92182.213841.9228a280827.512.512.56.240.03431.427340476010.935.72182.333882.128b280849.512.512.56.245.63435.823366513010.637.92422.34282.0228c2808611.512.512.56.251.23440.219393550010.440.32682.294631.9532a3208881414748.51338.083475760012.546.53052.55522.2432b32090101414754.91343.107509814012.249.23362.475932.1632c32092121414761.31348.131543869011.952.63742.476432.0936a3609691616860.9147.814660119001463.54552.738182.4436b36098111616868.1153.4667031270013.666.94972.78802.3736c360100131616873.3159.1187461340013.4705362.679482.3440a40010010.51818975.06858.9288791760015.378.85922.8110702.4940b40010212.51818983.06865.208932186001582.56402.7811402.4440c40010414.51818991.06871.4889861970014.786.26882.7512202.42注：截面图和表中标注的圆弧半径r，r1的数据用于孔型设计，不做交货条件。截面尺寸允许偏差槽钢的高度h、腿宽度b、腰厚度d尺寸允许偏差应符合表2的规定。表2型号允许偏差 mm高度h腿宽度b腰厚度d581.51.50.4814220.514182.50.61830330.730403.50.8槽钢平均腿厚度的允许偏差为0.06t。槽钢的弯腰挠度不应超过0.15d。槽钢腿的外缘斜度，单腿不大于1.5%b，双腿不大于2.5%b。槽钢腿端、肩钝化不得使直径等于0.18t的圆棒通过。2)长度允许偏差通常长度槽钢的通常长度应符合表3的规定。表3型号长度，m585128185191840619定尺、倍尺