2023復(fù)雜卷邊冷彎型鋼技術(shù)要求

復(fù)雜卷邊冷彎型鋼技術(shù)要求目次前言 3引言（可以加一些天豐特色說明） 錯誤!未定義書簽。1范圍 42規(guī)范性引用文件 43術(shù)語和定義 44符號 45分類與代號 56截面尺寸 56.1截面形狀及標注符號 56.2型鋼尺寸、理論重量、截面面積及主要參數(shù) 67允許偏差 177.1型鋼自由邊長、非自由邊長 177.2彎曲角度 187.3長度及允許偏差 187.4外形 188技術(shù)要求 199檢驗規(guī)則 199.1檢驗分類 199.2出廠檢驗 1910標志、包裝、運輸和儲存 2010.1標志 2010.2包裝 2010.3運輸和儲存 20附錄A（天豐討論確定） 21A.1鋼材等級 錯誤!未定義書簽。A.2連續(xù)熱鍍鋅鋼板 錯誤!未定義書簽。A.3熱浸鋅鋼帶 錯誤!未定義書簽。

復(fù)雜卷邊冷彎型鋼技術(shù)要求1范圍本標準規(guī)定了復(fù)雜卷邊冷彎型鋼的分類、代號、截面尺寸及允許偏差、長度及允許偏差、外形、重量和標記示例。本標準適用于冷軋或熱軋鋼帶通過連續(xù)輥壓成型的復(fù)雜卷邊冷彎型鋼（以下簡稱型鋼），其形狀見第6章的規(guī)定。用其他工藝生產(chǎn)的冷彎型鋼不在此應(yīng)用范圍。本標準包括為了減小彎曲半徑等，采用二次熱成型工藝的復(fù)雜卷邊冷彎型鋼。[條文說明]本章參考了歐洲標準的寫法，因為形成冷彎型鋼的方法有折彎、拉拔等。象鋼板止水樁等不在此范圍。2規(guī)范性引用文件下列文件對于本文件的應(yīng)用是必不可少的。凡是注日期的引用文件，僅注日期的版本適用于本文件。凡是不注日期的引用文件，其最新版本（包括所有的修改單）適用于本文件。GB/T6725冷彎型鋼通用技術(shù)要求。3術(shù)語和定義下列術(shù)語和定義適用于本文件。3.1復(fù)雜卷邊冷彎型鋼Sectionwithcomplexedgestiffeners以冷加工方式成型的各種開口、閉口截面型鋼的總稱。相對于普通冷彎型鋼，復(fù)雜卷邊冷彎型鋼具有卷邊加勁、多次、有效截面性能優(yōu)越的特點。3.2二次成型為了減小彎曲半徑，對冷彎型鋼加熱后進行輥壓，使得彎曲半徑減小。3.3非自由邊長兩縱邊與其他板件相連接之間的長度，或者一縱邊與其他板件相連接，另一縱邊為自由的板件之間的長度。3.4自由邊長只有一個拐角的邊長度。4符號下列符號適用于本文件。a—強勁邊高度；b—邊寬度；c—內(nèi)、外卷邊寬度；d—腹板加勁參數(shù)；e—腹板加勁參數(shù)；f—腹板加勁參數(shù)、截面平板部分凹凸度；h—邊高度；t—邊厚度；r—G型鋼的外圓角半徑；q—總彎曲度5分類與代號復(fù)雜卷邊型鋼按其截面形狀分為5種,其代號為：a)基本加勁卷邊型鋼(見圖2)GAb)腹板加勁卷邊型鋼(見圖3)GFc)邊緣加勁卷邊型鋼(見圖4)GBd)轉(zhuǎn)角加勁卷邊型鋼(見圖5)GLe)外卷邊加勁卷邊型鋼(見圖6)GW6截面尺寸6.1截面形狀及標注符號6.1.1型鋼截面形狀及標注符號如圖2-圖6所示。經(jīng)雙方協(xié)商并在合同中注明，可供應(yīng)圖2~圖6以外的型鋼，其參數(shù)由供需雙方協(xié)商。圖2基本加勁卷邊型鋼(GA)圖3腹板加勁卷邊型鋼(GF)圖4邊緣加勁卷邊型鋼(GB)圖5轉(zhuǎn)角加勁卷邊型鋼（GL）圖6外卷邊加勁卷邊型鋼(GW)6.1.2腹板加勁卷邊型鋼(GF)中的d、f取值見表1。表1腹板加勁卷邊型鋼（GF）中的有關(guān)取值翼緣b4050、6070、8090、100、120大于140備注d值1015203040f值1020305060說明：e值與a相等6.2型鋼尺寸、理論重量、截面面積及主要參數(shù)6.2.1型鋼的尺寸、理論重量、截面面積及主要參數(shù)見表2~表6。經(jīng)雙方協(xié)商并在合同中注明，可供應(yīng)表2~表6以外的型鋼截面。

表2基本加勁卷邊型鋼（GA）截面特性表規(guī)格尺寸mm理論重量kg/m截面面積cm2重心cm慣性矩cm4回轉(zhuǎn)半徑cm截面模數(shù)cm3e0cmItcm4Iωcm6h×b×a×b×thbactX0IxIyrxryWxWymaxWymin75×40×15×10×0.75754015100.751.151.471.6712.993.752.981.603.462.241.614.140.002876.8375×40×15×10×1.01.01.511.931.6616.924.822.961.584.512.912.064.090.006498.2675×40×15×10×1.51.52.192.81.6324.186.682.941.556.454.12.824.010.021135.5100×40×15×10×0.751004015100.751.301.661.4925.564.193.931.595.112.821.673.770.0031121.02100×40×15×10×1.01.01.712.181.4733.375.393.921.576.673.662.133.730.0073155.6100×40×15×10×1.51.52.493.171.4547.97.483.891.549.585.172.933.650.0238216.88100×50×20×15×1.01005020151.02.022.582.0939.7310.33.932.007.954.913.545.240.0086386.13100×50×20×15×1.51.52.963.772.0757.4914.63.901.9611.57.034.965.160.0283543.28100×50×20×15×2.02.03.854.92.0473.8718.33.881.9314.88.936.185.070.0654679.01120×50×20×15×1.01205020151.02.182.781.9561.2311.14.72.0010.25.683.624.940.0093507.2120×50×20×15×1.51.53.204.071.9288.7915.74.671.9614.88.145.094.860.0305717.33120×50×20×15×2.02.04.165.301.90114.319.74.641.9319.110.366.344.780.0707901.28150×50×25×15×1.01505020151.02.413.081.76104.012.05.821.9813.96.833.714.560.0103740.09150×50×25×15×1.51.53.554.521.74151.217.05.781.9420.29.805.224.480.03391052.6150×50×25×15×2.02.04.635.91.71195.221.45.751.9026.012.486.514.400.07871330.0150×60×25×15×1.51506025151.53.904.972.27170.028.35.852.3922.712.497.585.740.03731957.7150×60×25×15×2.02.05.106.502.24220.335.95.822.3529.416.049.565.660.08672487.2150×60×25×15×2.52.56.267.972.21267.442.75.792.3135.719.2811.285.580.16612961.2180×60×25×15×1.51806025151.54.255.422.08262.230.36.962.3629.114.537.735.370.04072684.0180×60×25×15×2.02.05.587.102.06340.438.56.922.3337.818.679.765.290.09473422.7180×60×25×15×2.52.56.858.722.04413.945.76.892.2946.022.4511.525.220.18174090.4200×60×25×15×1.52006025151.54.495.721.98337.131.47.682.3433.715.97.815.160.04293260.0200×60×25×15×2.02.05.897.501.96438.039.97.642.3143.820.49.875.080.10004165.1200×60×25×15×2.52.57.249.221.93533.247.47.602.2753.324.611.665.000.19214987.2200×70×30×20×2.02007030202.06.528.302.53494.663.07.722.7649.524.9614.096.490.11077339.0200×70×30×20×2.52.58.0210.22.5604.275.67.692.7260.430.2216.816.410.2138824.2200×70×30×20×3.03.09.4812.12.48708.286.97.662.6870.835.0919.236.330.362410182250×60×30×20×2.02506030202.06.998.901.89782.847.59.382.3162.625.1611.545.020.11877741.4250×60×30×20×2.52.58.6111.001.87956.456.79.342.2776.530.3513.724.950.22869312.7250×60×30×20×3.03.010.213.01.85112164.99.292.2489.735.0915.634.870.389410751250×70×30×20×2.02507030202.07.309.302.2684468.39.532.7167.530.1514.425.940.12411014250×70×30×20×2.52.59.0111.472.24103381.99.492.6782.636.5217.225.860.23913289250×70×30×20×3.03.010.713.582.22121394.29.452.6397.042.4119.715.790.407415388300×70×40×25×2.53007040252.510.5813.472.26168599.811.182.72112.344.0721.086.040.280724660300×70×40×25×3.03.012.5415.982.251985115.411.142.69132.351.3424.285.970.479428659300×70×40×25×4.04.016.3420.812.212547142.411.062.62169.864.3629.745.821.109935818300×80×40×25×2.53008040252.510.9713.972.651796136.611.343.13119.751.5825.526.980.291133447300×80×40×25×3.03.013.0216.582.632117158.411.33.09141.160.2729.486.90.497438955300×80×40×25×4.04.016.9621.612.592722196.811.223.02181.576.0436.356.751.152548903350×90×50×30×3350905030315.419.583.033381245.113.143.5419381.0241.038.000.5984944350×90×50×30×4420.125.612.994373308.213.073.47250103.151.267.861.37107531350×90×50×30×5524.631.392.955297362.312.993.4303122.859.887.712.62127552400×100×50×30×34001005030317.0221.683.194921328.415.073.89246.1102.948.258.470.6504137938400×100×50×30×4422.3028.413.156381414.514.993.82319.1131.460.558.321.5152175518400×100×50×30×5527.3934.893.117751489.314.913.74387.6157.171.068.172.9075209291450×120×80×55×54501208055535.2444.894.4112456100416.664.73553.6227.9132.1911.73.7409689666450×120×80×55×6641.7053.124.3714626115616.594.67650.0264.4151.5811.556.3747796108450×120×80×55×8854.0468.844.3118647141516.464.53828.8328.6183.8611.2514.685981444500×140×120×75×850014012075867.285.65.6427484260717.915.521099462.0311.91518.2702973886500×140×120×75×101082.1104.65.5833112304617.85.41325545.7361.9314.734.8543478215500×140×120×75×121296.2122.55.5238253340717.675.271530617.1401.914.458.7953902219550×160×140×75×10550160140901094.64120.66.5846015471419.546.251673716.7500.2417.4640.1877066062550×160×140×75×1212111.2141.76.5253437533119.426.131943817.9562.2117.1668.0117993277550×160×140×75×1414127.0161.86.4660277584819.36.012192905.7612.8116.86105.728785423600×180×160×100×1260018016010012125.4159.77.5171729785221.197.0123911046748.4819.8376.65114804821600×180×160×100×1414143.5182.87.4581232868821.086.8927081166823.4819.52119.4416380882600×180×160×100×1616160.9205.07.3990049940020.966.7730021272885.7919.22174.9017745767表3腹板加勁卷邊型鋼（GF）截面特性表規(guī)格尺寸mm理論重量kg/m截面面積cm2重心慣性矩回轉(zhuǎn)半徑截面模數(shù)e0ItIωh×b×a×c×thbactcmcm4cmcm3cmcm4cm6X0IxIyrxryWxWymaxWymin75×40×15×10×0.7575401510.751.201.531.8013.193.182.941.443.521.771.453.160.002974.1375×40×15×10×1.01.01.582.011.7917.194.072.931.424.582.281.843.110.006794.9475×40×15×10×1.51.52.292.921.7724.595.602.901.386.563.172.513.020.0219131.26100×40×15×10×0.75100401510.751.351.721.7126.133.283.901.385.231.911.442.630.0032117.87100×40×15×10×1.01.01.772.261.7134.134.193.891.366.832.461.832.590.0075151.45100×40×15×10×1.51.52.593.291.6949.055.763.861.329.813.412.492.510.0247210.79100×50×20×15×1.01005020151.02.102.682.2740.178.663.871.808.033.813.184.000.0089366.46100×50×20×15×1.51.53.083.922.2658.1612.183.851.7611.635.394.443.910.0294516.90100×50×20×15×2.02.04.015.102.2474.7615.183.831.7214.956.775.513.820.0680647.70120×50×20×15×1.01205020151.02.262.882.2262.178.764.651.7510.363.943.163.480.0096488.98120×50×20×15×1.51.53.314.222.2190.2112.314.621.7115.035.574.413.400.0317692.61120×50×20×15×2.02.04.325.502.20116.215.334.601.6719.376.985.473.310.0734871.54150×50×25×15×1.01505020151.02.493.182.16106.18.885.781.6714.144.113.132.930.0106708.5150×50×25×15×1.51.53.674.672.15154.312.475.751.6320.575.814.382.860.03501007.5150×50×25×15×2.02.04.796.102.14199.315.525.721.5926.587.265.422.780.08141273.0150×60×25×15×1.51506025151.54.025.122.58172.422.705.802.1122.998.806.644.210.03841917.4150×60×25×15×2.02.05.266.702.56223.628.655.782.0729.8111.178.344.130.08942437.2150×60×25×15×2.52.56.458.222.55271.633.815.752.0336.2113.279.804.050.17132903.0180×60×25×15×1.51806025151.54.375.572.50266.823.126.922.0429.659.256.603.730.04182605.2180×60×25×15×2.02.05.737.302.49346.629.166.892.0038.5111.738.303.650.09743319.1180×60×25×15×2.52.57.048.972.47421.734.396.861.9646.8613.929.753.570.18693962.9200×60×25×15×1.52006025151.54.615.872.45343.623.367.651.9934.369.536.583.480.04403121.0200×60×25×15×2.02.06.057.702.44446.629.457.611.9644.6612.078.273.400.10273981.6200×60×25×15×2.52.57.449.472.43544.034.737.581.9154.4014.319.723.330.19734760.5200×70×30×20×2.02007030202.06.718.543.01502.248.257.672.3850.2216.0212.104.450.11397116.9200×70×30×20×2.52.58.2610.533.00613.757.557.642.3461.3719.1914.384.370.21938560.0200×70×30×20×3.03.09.7712.442.99719.665.787.602.3071.9622.0216.394.290.37339881.4250×60×30×20×2.02506030202.07.159.102.43797.434.179.361.9463.7914.069.573.320.12147204.2250×60×30×20×2.52.58.8111.222.42974.740.519.321.9077.9816.7311.323.260.23388650.1250×60×30×20×3.03.08.8111.222.42974.740.519.321.9077.9816.7311.323.260.23388650.1250×70×30×20×2.02507030202.07.499.542.92860.148.989.492.2768.8116.8011.993.760.127310450250×70×30×20×2.52.59.2411.782.91105358.399.462.2384.2220.0914.263.690.245312601250×70×30×20×3.03.010.9513.942.90123766.709.422.1998.9323.0316.263.620.418314585300×70×40×25×2.53007040252.510.8113.782.94171371.4011.152.28114.224.3017.603.880.287023096300×70×40×25×3.03.012.8316.342.93201882.2111.112.24134.528.0020.203.810.490326822300×70×40×25×4.04.016.7221.292.922591100.211.032.17172.834.3024.573.671.135733480300×80×40×25×2.53008040252.511.2114.283.291823101.611.302.67121.630.8621.574.790.297431918300×80×40×25×3.03.013.3016.943.282150117.211.272.63143.435.7224.844.720.508337137300×80×40×25×4.04.017.3422.093.262767144.111.192.55184.444.1930.424.581.178446529350×90×50×30×3.350905030315.820.083.913433177.213.072.9719645.3334.804.980.6080994350×90×50×30×4420.626.273.94441221.0132.925456.7043.314.841.40102592350×90×50×30×5525.332.223.895383257.712.932.8330866.3150.394.702.69121777400×100×50×30×3.4001005030317.4122.184.195001234.415.023.25250.055.9340.365.300.6654130805400×100×50×30×4422.8229.074.186487293.614.943.18324.470.2650.425.161.5506166405400×100×50×30×5528.0435.724.167885343.714.863.10394.282.5358.905.032.9768198397450×120×80×55×54501208055535.7945.605.3712913764.016.834.09573.9142.3115.38.823.7999664479450×120×80×55×6642.3753.975.3615163875.916.764.03673.9163.6131.88.686.4767767210450×120×80×55×8854.9369.975.3219333106116.623.89859.3199.4159.08.3914.928946192500×140×120×75×850014012070868.987.77.2530350183718.604.581214272.0253.410.6618.722662993500×140×120×75×101084.1107.27.2136587212818.484.461463313.5295.010.3535.733118405500×140×120×75×121298.6125.67.1842296235818.354.331692345.6328.610.0460.303502915550×160×140×75×10550160140801095.9122.28.2951100341320.455.281858442.9411.413.1340.736245796550×160×140×75×1212112.8143.68.2659371383320.335.172159494.9464.312.8268.947072913550×160×140×75×1414128.8164.18.2267007417320.215.042437536.1508.012.50107.217782187600×180×160×100×126001801609012125.0159.29.2278818599322.256.142627683.0649.715.3976.4312771082600×180×160×100×1414143.1182.39.1889267659922.136.022976748.2718.915.08119.1014144658600×180×160×100×1616160.4204.49.1398967710422.015.93299801.3777.614.76174.3815338452表4邊緣加勁卷邊型鋼（GB）截面特性表規(guī)格尺寸mm理論重量kg/m截面面積cm2重心cm慣性矩cm4回轉(zhuǎn)半徑cm截面模數(shù)cm3e0cmItcm4Iωcm6h×b×a×b×thbactX0IxIyrxryWxWymaxWymin75×40×15×15×0.75754015150.751.211.541.9313.385.212.951.843.572.701.494.660.0029107.475×40×15×15×1.01.01.592.031.9217.476.732.931.824.653.511.934.610.0068137.775×40×15×15×1.51.52.312.951.9025.049.482.911.796.665.002.754.530.0221190.8100×50×20×20×1.01005020201.02.102.682.4240.6414.483.902.338.135.983.235.870.0089528.1100×50×20×20×1.51.53.083.922.4058.9220.713.882.3011.788.634.655.780.0294745.9100×50×20×20×2.02.04.015.102.3875.8226.303.852.2715.1611.075.955.690.0680935.8120×50×25×25×1.01205025251.02.413.082.5064.2118.464.572.4510.707.373.776.140.0103988.1120×50×25×25×1.51.53.554.522.4893.4426.574.542.4215.5610.705.466.060.03391406.1120×50×25×25×2.02.04.635.902.47120.733.984.522.4020.1113.787.035.980.07871777.8150×60×30×30×1.51506030301.54.375.572.95181.047.635.702.9224.1416.178.077.240.04183813.8150×60×30×30×2.02.05.737.302.93235.461.365.682.9031.3820.9610.457.150.09744869.4150×60×30×30×2.52.57.048.972.91286.774.065.652.8738.2225.4612.687.070.18695826.7180×60×40×30×1.51806040301.54.966.322.88282.553.986.692.9231.3918.739.057.220.04746618.8180×60×40×30×2.02.06.528.302.87368.369.666.662.9040.9224.3111.747.140.11078484.9180×60×40×30×2.52.58.0210.222.85449.984.246.632.8749.9929.5714.287.060.213010195200×70×40×35×2.02007040352.07.309.303.32525.5107.27.523.4052.5532.2715.378.260.124014962200×70×40×35×2.52.59.0111.473.31643.7130.27.493.3764.3639.4018.758.170.239018061200×70×40×35×3.03.010.6613.583.29756.6151.77.463.3475.6546.1621.958.090.407420925250×70×50×35×2.02507050352.08.4010.703.16915.2122.49.253.3873.2138.8017.148.020.142726027.3250×70×50×35×2.52.510.3813.223.141123.6148.99.223.3689.8847.4220.947.940.275531523250×70×50×35×3.03.012.3115.683.121323.9173.79.193.33105.955.6124.557.860.470436646300×80×60×40×2.53008060402.512.3415.723.561918.3233.011.053.85127.965.4628.459.080.327670860300×80×60×40×3.03.014.6618.683.542266.8273.011.023.82151.177.0233.479.000.560482759300×80×60×40×4.04.019.1624.413.512929.2346.610.953.77195.398.6742.858.841.3019104481350×90×60×40×3350907045317.0221.683.973575.8404.012.844.32204.3101.943.7510.140.6504166455350×90×60×40×4422.3028.413.944640.9516.112.784.26265.2131.256.329.981.5152211621350×90×60×40×5527.3934.893.905643.1617.612.724.21322.5158.267.919.822.9075252118400×100×80×50×44001008050425.4432.414.366915.5733.314.614.76345.8168.371.5911.121.7285392413400×100×80×50×5531.339.894.338437.9881.814.544.70421.9203.786.6910.963.3242470078400×100×80×50×6636.9947.124.309878.6101714.484.65493.9236.7100.7110.815.6547540401表5轉(zhuǎn)角加勁卷邊型鋼(GL)截面特性表規(guī)格尺寸mm理論重量kg/m截面面積cm2重心cmX0=Y0慣性矩cm4回轉(zhuǎn)半徑cm截面徑模cm3b×a×c×tabctIx=IyIuIvrx=ryrurvWxmax=WymaxWxmin=Wymin75×15×10×0.757515100.751.131.442.4310.9316.725.142.753.411.894.502.1575×15×10×1.01.01.491.902.4214.1821.746.632.733.391.875.872.7975×15×10×1.51.52.172.772.4020.1230.969.282.703.351.838.393.95100×20×15×1.010020151.02.042.603.2635.0453.5716.513.674.542.5210.755.20100×20×15×1.51.53.003.823.2450.5077.4223.583.644.502.4915.577.47100×20×15×2.02.03.914.993.2364.6299.3529.893.604.462.4520.039.54120×30×15×1.012030151.02.513.204.0363.7595.5931.904.475.473.1615.847.99120×30×15×1.51.53.704.724.0192.65139.346.044.435.433.1223.1111.59120×30×15×2.02.04.866.193.99119.6180.258.984.405.403.0929.9614.93150×30×20×1.515030201.54.535.774.85174.8267.582.185.516.813.7836.0417.23150×30×20×2.02.05.957.594.83226.9347.8106.05.476.773.7446.9422.32150×30×20×2.52.57.349.354.82276.0423.8128.25.436.733.7057.3027.10180×35×20×1.518035201.55.356.825.74297.6456.5138.86.618.184.5151.8724.27180×35×20×2.02.07.058.995.72387.9595.8180.06.578.144.4867.8031.59180×35×20×2.52.58.7211.105.70473.7728.8218.66.538.104.4483.0638.52200×40×25×2.020040252.08.0010.196.44548.3839.3257.47.349.085.0385.1340.44200×40×25×2.52.59.8912.606.42671.61029313.87.309.044.99104.5649.47200×40×25×3.03.011.7514.976.41789.51212367.27.269.004.95123.2558.08250×45×25×2.025045252.09.7212.397.8310331594473.09.1311.346.18131.9560.19250×45×25×2.52.512.0515.357.8112701961579.19.1011.306.14162.5473.89250×45×25×3.03.014.3418.277.7914982316680.49.0611.266.10192.1987.06300×50×30×2.530050302.514.4118.359.292184338498410.9113.587.32235.05105.47300×50×30×33.017.1721.879.2725834006116010.8713.547.28278.57124.63300×50×30×44.022.5628.749.2433455197149210.7913.457.21362.16161.07350×55×30×33505535319.9925.4710.7540966367182512.6815.818.46380.93168.91350×55×30×4426.3333.5410.7153258290236012.6015.728.39496.98219.25350×55×30×5532.5141.4110.68648610115285812.5215.638.31607.59266.66400×60×40×44006040430.1038.3412.19796312416351114.4118.009.57653.09286.38400×60×40×5537.2247.4112.15973215195426914.3317.909.49800.66349.51400×60×40×6644.1756.2712.121141317844498214.2417.819.41941.97409.29表6外卷邊加勁卷邊型鋼(GJ)截面特性表規(guī)格尺寸mm理論重量kg/m截面面積cm2重心cm慣性矩cm4回轉(zhuǎn)半徑cm截面模數(shù)cm3e0cmItcm4Iωcm6h×b×a×c×thbactY0IxIyrxryWxmaxWxminWy30×75×15×15×0.75307515100.751.031.321.211.915.981.213.481.591.083.092.410.002512.430×75×15×15×1.01.01.351.731.202.520.571.193.452.041.363.992.390.005816.030×75×15×15×1.51.51.962.501.183.428.701.163.392.841.845.632.340.018722.430×100×20×20×1.03010020151.01.712.181.183.1247.181.204.662.651.716.842.250.007339.530×100×20×20×1.51.52.493.171.164.3266.871.174.593.722.349.762.210.023855.430×100×20×20×2.02.03.224.101.145.2884.091.134.534.632.8412.372.160.054769.140×120×25×15×1.04012025151.02.102.681.607.183.621.635.594.472.989.953.140.0089117.840×120×25×15×1.51.53.083.921.5810.1119.81.605.536.374.1714.343.100.0294168.140×120×25×15×2.02.04.015.101.5612.6152.31.575.468.075.1718.343.050.0680213.140×150×30×20×1.54015030201.53.674.671.5312.0222.71.606.907.824.8621.512.950.0350334.040×150×30×20×2.02.04.796.101.5215.1285.41.576.849.936.0727.702.910.0814424.740×150×30×20×2.52.55.877.471.5017.7342.51.546.7711.807.1033.422.870.1557506.150×180×30×20×1.55018035201.54.375.571.9023.1372.92.038.1812.127.4430.193.820.0418848.950×180×30×20×2.02.05.737.301.8929.3480.82.008.1115.559.4139.093.780.09741090.950×180×30×20×2.52.57.048.971.8734.9580.91.978.0518.6811.1547.423.730.18691314.150×200×40×25×2.05020040252.06.368.101.8932.6678.12.009.1517.2010.4849.143.670.10801595.550×200×40×25×2.52.57.839.971.8838.9822.31.979.0820.7012.4659.803.630.20781922.250×200×40×25×3.03.09.2511.781.8644.5956.61.949.0123.8814.2069.833.580.35342222.660×250×45×25×2.06025045252.07.629.702.1757.111952.4211.1026.2514.9171.134.480.12944058.960×250×45×25×2.52.59.4011.972.1668.614562.3911.0331.7917.8686.924.440.24944930.060×250×45×25×3.03.011.1314.182.1479.217022.3610.9636.9320.53101.924.390.42545747.870×300×50×30×2.57030050302.511.1614.222.46110.924492.7913.1245.0424.44123.995.160.29631157570×300×50×30×33.013.2516.882.45128.728752.7613.0552.5828.26145.935.120.50641355870×300×50×30×44.017.2822.012.42160.036652.712.9066.2134.91187.015.031350×60×30×3803506040315.8420.182.85203.5848483.1815.5071.4639.52208.955.810.60543006880×350×60×30×4420.7326.412.82256.0762293.1115.3690.7849.44269.645.721.40853838780×350×60×30×5525.4332.392.79301.2874973.0515.21107.957.85325.945.642.69924593190×400×60×40×4904007050424.1930.813.21383.2497693.5317.81119.366.23367.276.391.64327773190×400×60×40×5574.0037.893.19454.83118253.4617.67142.778.23446.246.313400×60×40×6635.1144.723.16517.27137323.417.52163.888.55520.176.235.36671077786.2.2彎曲角部分的外圓弧半徑應(yīng)符合表6的規(guī)定。表7外圓弧半徑屈服強度等級外圈弧半徑/mmt≤4.04.0<t≤12.012.0<t≤16.0235(1.5～2.5)t(2.0～3.0)t(2.5～3.5)t345(2.0～3.0)t(2.5～3.5)t(3.0～4.0)t390以上供需雙方協(xié)議7允許偏差型鋼尺寸應(yīng)在距端部不小于100mm處測量。7.1型鋼自由邊長、非自由邊長7.1.1型鋼非自由邊長的允許偏差應(yīng)符合表8的規(guī)定。表8非自由邊長的允許偏差單位為毫米壁厚邊長≤40>40～100>100～200>200～400>400≤1.51.001.001.25aa>1.5～3.01.001.001.51.502.00>3.0～6.01.001.251.502.002.00>6.0～12.02.002.003.003.00>12.0aaaaaa在訂購時，按約定的公差。【條文說明】此表從歐洲規(guī)范來的，均比歐洲規(guī)范減低0.5mm，4mm以下沒有分級。歐洲規(guī)范分級在3mm以下為2個等級符合建筑行業(yè)供貨情況。第一～第三行和歐洲規(guī)范相同，第四和第五行和GB/T6723接軌。7.1.2型鋼自由邊長的允許偏差應(yīng)符合表9的規(guī)定。表9自由邊長的允許偏差