GB-T706-2008-热轧型钢

4.4.1型钢表面不应有裂缝、折叠、结疤、分层和夹杂。 4.4.2型钢表面允许有局部发纹、凹坑、麻点、刮痕和氧化铁皮压人等缺陷存在，但不应超出型钢尺寸 的允许偏差。 4.4.3型钢表面缺陷允许清除，清除处应圆滑无棱角，但不应进行横向清除。清除宽度不应小于清除 深度的五倍，清除后的型钢尺寸不应超出尺寸的允许偏差。 4.4.4型钢不应有大于5mm的毛刺，

表6检验项目、取样数量和试验方法

5.2工字钢、植钢在腰部取样。

6.1型钢的检查和验收由供方技术质量监督部门进行。 6.2型钢的组批按GB/T700、GB/T1591及相应标准规定进行。 6.3型钢的复检和验收规则应符合GB/T2101的规定。

6.1型钢的检查和验收由供方技术质量监督部门进行。

7包装、标志及质量证明书

的包装、标志及质量证明书应符合GB/T2101的

GB/T 7062008表A.1(续）截面尺寸/mm截面理论惯性矩/cm惯性半径/cm裁面模数/cm3型号面积/重量/hdr1cm?(kg/m)IrIyiriyW.Wy45a15011. 5102.44680.42032 20085517.72. 8943011445b45015213. 518.013.56.8111.44687.4853380089417. 42.841 50011845c15415.5120,44694.5503530093817.12.791 57012250a15812.0119.30493.6544650012019. 73. 071 86014250b50016014.020. 014.07.0129.304101,504486001 17019.43.011 94014650c16216. 0139.304109.35450 6001 22019. 02.962 08015155a16612.5134.185105.3356290037021.6. 192 29016455b55016814.5145.185113.97065 60042021.2. 142 39017055c17016.5156.185122.60568 400148020.93.082 49017521. 014.57. 356a16612.5135.435106.31665 60037022.03.182 34016556b56016814.5146.635115.10868 50049021.63.162 45017456c17016. 5157.835123.90071 4001 56021.33.162 55018363a17613.0154,658121.40793 9001 70024.53.312 98019363b63017815.022.015.07.5167.25898 1001 81024.23.29316020463c18017. 0179,8581.1891020001 92023.83.273 300214注：表中r、r的数据用于孔型设计，不做交货条件。表A.2槽钢截面尺寸、截面面积、理论重盘及截面特性重心截面尺寸/截面理论惯性矩/惯性半径/截面模数/距离/型号mm面积/重量/cmcmcm3cmcm2(kg/m)hIyIyliyWrWyZo550374. 57. 07. 03. 56. 9285.43826.08. 3020. 91. 941. 1010. 43..551.356. 363404.87, 57. 53.88.4516. 63450.811. 928. 42.451. 1916.14.501.366. 565407. 57. 53. 88. 5476. 70955. 212. 028.32. 541.1917. 0.591. 38880435. 08. 08. 04. 010.2488,04510116. 637.43.151. 2725.3.791, 4310100485.38. 58.54.212.74810.00719825.654. 93. 9539.77.801.5212120535, 59. 09. 04. 515.36212.05934637.41.6212.6126535. 59. 09. 04.515.69212.31839138. 014a586. 018.51614.53556453.2107.711408.09.59.514b4.86021.31616.73360961.1.6716a6. 521.96217.2486673.36.2816010. 010.05.016b658.525.16219.75293583.41616.108218a687, 025.69920.174127098. 6190.0496411.8818010. 510, 55.218b709.029.29923.000370210845200

GB/T7062008表A.2(续）重心截面尺寸/截面理论惯性矩/惯性半径/裁面模数/距离/型号mm面积/重量/cmtcmcm3cmcm2(kg/m)hbdIrIy1ir1yW.WZo20a737.028.83722.63717801282447.862. 1117824.22.0120011. 011.05. 520b759.032.83725.77719101442687. 642.0919125.91.9522a777.031.84624.99923901582988.672.2321828.22.1022011.511.55. 822b799. 036.24628.45325701763268.422.2123430.12.0324a787. 034.21726.8603 050174325452.2525424b240809.039.01730.62832801943552742. 0324c11.043.81734, 39635102132.0012.06.025a787. 034.91727.4103 37(176322822.0725b250809. 039. 91731.3353530. 9825c8211.044, 91735.2609227a827. 539.28430.838436027b270849.544.68435.07746902392.32.0627c8611.550.08439.316502026146710.12.283722.0312.512.56.228a827. 540,03431.42721838810.92.3328b280849. 545.63435.8235 13024242810, G2. 3036628c8611. 551.23440.219550026846310.42.2939340.330a857. 543.90234.463605026046711. 72.434032.1730b3008713.513.56.849.90239.17365002895154332.1330c8911.555.90243.88369503165602.384632.0932a888. 048.51338.083760055212.52.5032b3209010.014.014, 07.054.91343.1078 14059312.22.45092.1632c9212.061.31348.1318 69037464311.92.475432.0936a969. 060,91047.81411 9004558182.736602.4436b3609811.016.016.08.068.11053.4661270049788013.62.707032. 3736c10013.075.31059.11894813.2.6774670.02.3440a10010.575.06858,92817600592107015.3.8187978.82.4940b40010218. 018.09.083.06865.208186006409322.4440c10414.591.06871.4881970068812202.759862.42注：表中r、r1的数据用于孔型设计pvc标准，不做交货条件

GB/T7062008

GB/T 7062008

GB/T7062008

GB/T706—2008表A.5L型钢截面尺寸、截面面积、理论重及截面特性截面尺寸/mm号截面面积/理论重量/惯性矩Ix/重心距离Y。/型BbDdcm?kg/mcm*cmL250X90X9X1391333.426. 22 1908. 64L250X90×10.5×152509010, 51538.530.32 5108. 76L250×90×11.5×1611. 516157. 541.732.72 7108, 90L300×100×10.5×1510, 51545.335. 64 29010. 6300100L300×100×11.5×1611. 51649.038.54 63010.7L350×120×10.5X1610. 51654. 943. 17 11012.0350120L.350×120×11.5×1811. 51860. 447. 47 78012. 0L400×120×11.5×2340012011.52371.656.211 90013. 32010L450×120×11.5×2545012011.52579.562. 416 80015,1L500X120×12.5X3312.53398. 677. 425 50016. 5500120L500×120×13.5×3513. 535105.082.827 10016. 618