通用冷弯开口型钢(GB／T6723—1986).doc

(1)型别与代号见表4-153。表4-153通用楞弯开口型钢的型别与代号名称冷弯等边角钢冷弯不等边角钢冷弯等边槽钢冷弯不等边槽钢冷弯内卷边槽钢冷弯外卷边槽钢冷弯乙型钢冷弯卷边乙型钢代号(2)尺寸规格见表4-154表4-162。表4-154冷弯等边角钢的尺寸规格名 称尺 寸mm理论质量 (kgm)截面面积/cm2bbtbt20 201.2201.20.354O.45120201.61.60.4630.58920202.02.00.566O.72125251.6251.60.588O.74925252.02.00.723O.92l25252.52.5O.8851.12725253.03.O1.0391.32330301.6301.60.714O.90930302.02.0O.8801.12130302.52.51.08l1.37730303.O3.O1.2741.62340401.6401.6O.9651.22940402.02.01.1941.52140402.52.51.4731.87740403.03.O1.7452.22340404.04.02.2662.88650502.O502.O1.5081.92l50502.52.51.8662.37750503.O3.O2.2162.82350504.O4.O2.8943.68660602.0602.O1.8222.32l60602.52.52.2582.87760603.O3.02.6873.42360604.O4.03.5224.48670703.O703.O3.1584.02370704.04.O4.1505.286707105.05.05.1106.5lO80803.O803.03.6294.62380804.04.O4.7786.08680805.O5.O5.8957.51O80806.O6.O6.9828.8951001003.O1003.O4.5715.8231001004.04.O6.0347.6861001005.O5.O7.7659.510100100606.O8.86611.295表4_155冷弯不等边角钢的尺寸规格名 称尺 寸mm理论质量(kgm)截面面积/cm2BbtBbt25152.025152.OO.5660.72l25152.52.50.6880.87725153.O3.OO.8031.02330202.O30202.OO.7320.92130202.52.50.8851.12730203.O3.O1.0391.32335202.O352.OO.8021.02135202.52.5O.9831.25235203.03.O1.1561.4734025 x2.540252.51.1791.50240253.O3.O1.3921.77350302.550302.51.4731.87750303.O3.O1.7452.22350304.04.O2.2662.88660402.560402.51.8662.37760403.03.O2.2162.82360x404.O4.02.8943.68670403.070403.02.4523.12370404.04.03.2084.08680503.O80503.O2.9233.72380504.04.03.8364.886100603.O100603.03.6294.623100604.04.04.7786.086100605.O5.O5.8957.510120804.0120804.06.0347.686120805.05.O7 4659.510120806.06.08.86611.295表4-156冷弯等边槽钢的尺寸规格名 称尺 寸mm理论质量(kgm)截面面积/cmHBtHBt20101.520101.5O.4010.51120102.02.00.5050.64320102.52.5O.593O.75530101.5301.5O.519O.66l30102.O2.OO.662O.84330lO2.52.5O.7891.00530303.O303.O1.8432.34740202.O40202.O1.1331.44340202.52.51.3781.75540203.03.O1.6072.04750302.O50302.01.6042.04350302.52.51.9672.50550303.O3.O2.3142.94750503.0503.O3.2564.14760302.560302.52.1632.75560303.03.02.5493.24780402.580402.52.9483.75580403.03.O3.49l4.44780404.04.04.5325.773100503.O100503.O4.4335.647100504.04.O5.7887.373120603.0120603.O5.3756.847120604.O4.07.0448.973140603.O1403.05.8467.447140604.O4.O7.6729.773140605.O5.O9.43612.021160603.O1603.O6.3178.047160604.04.08.30010.573160 605.O5.OlO.22113.021l60803.O3.O7.2599.247160804.O4.O9.55612.173160805.O5.O11.79115.02l180 804.0 4.OlO.18412.973180805.O5.O12.57616.021200804.O 4.010.81213.773200805.O5.013.36l17.021200806.06.O15.84920.190表4-157冷弯不等边槽钢的尺寸规格名 称尺 寸mm理论质量(kgm)截面面积/cm2HBbtHBbt3020lO3.O3020lO3.01.1801.5044032203.O4032201.9342.4645032202.5502.51.8402.3445032203.O3.O2.1692.7645050322.550322.52.4293.0946032252.56032252.1342.7196032253.O3.02.5233.1247530152.57530152.52.1932.7947530153.03.O2.5933.304704515 3.O70452.8293.6047065352.565352.53.1744.0448040202.58040202.5863.2948040203.O3.O3.0643.90410060303.010060304.2425.40415060503.0150505.8907.504表4-158冷弯内卷边槽钢的尺寸规格名 称尺 寸mm理论质量(kg/m)截面面积/cm2HBCtHBCt404092.5404092.52.3232.9606030102.56030lO2.52.3633.OlO6030103.03.02.7433.4956030152.5152.52.5593.2606030153.O3.02.9793.7958040152.580402.53.3444.2608040153.O3.03.9214.9958050252.550252.54.1295.260表4_159冷弯外卷边槽钢的尺寸规格名 称尺 寸理论质量(kgm)截面面积/cm2HBCtHBCt3030162.53030162.52.0()92.05020153.05020153.02.2722.8956025322.55025322.53.0303.8606025323.O6025323.O3.5444.5158040204.O8040204.O5.2966.74610030153.010030153.O3.92l4.995表4_160冷弯z形钢的尺寸规格名 称尺 寸mm理论质量(kg/m)截面面积/cm2HBtHBt80402.580402.52.9473.75580403.03.O3.4914.447100502.5100502.53.7324.755100503.O3.O4.4335.647表4-161冷弯卷边Z形钢的尺寸规格10040202.010040202.O3.2084.08610040202.52.53.9335.01012050202.0120502.O3.8364.88612050202.52.54.7186.01012050203.O3.O5.5697.09514050202.51402.55.1106.5lO14050203.03.O6.0407.69516060202.5160602.55.8957.5lO16060203.O3.O6.9828.89516070202.52.56.2888.01016070203.O3.O7.4539.49518070202.5180702.56.6808.5lO18070203.03.07.924lO.09520070 202.52002.57.0739.0102007020 3.O3.O8.39510.69523075253.O23075253.O9.57312.19523075254.04.O12.51815.946250x 75253.O2503.OlO.04412.79525075254.O4.013.14616.746表4-162弯曲角部分的内圆弧半径(t-壁厚)所用钢种屈服强度MPa内圆弧半径mmt4.O4.OT8.02351.4t1.8t2751.8t2.4t3502.4t3.Ot350双方协议(3)允许偏差见表4-163表4-166。表4-163型钢非自由边长的允许偏差 (mm)壁 厚允许偏差5050100100250普通精度较高精度普通精度较高精度普通精度较高精度3.O1.2O.751.501.00士1.501.003.05.01.501.002.001.205.O8.O2.001.252.25土1.50表4_164型钢