結構用無縫鋼管 GB/T81621999 是用于一般結構和機械結構的無縫鋼管。　　執行標準：　　GB/T8162——中國國家標準　　ASTM A53——美國材料與試驗學會標準　　ASME SA53 ——美國鍋爐及壓力容器規范　　主要用途：　　用于制造管道、容器、設備、管件及機械結構用無縫鋼管　　主要鋼管牌號：　　10、20、35、45、Q345、15CrMo、12Cr1MoV、A53A、A53B、SA53A、SA53B　　無縫鋼管外徑和壁厚的允許偏差鋼管種類鋼管尺寸允許偏差普通級高級熱軋(擠，壓)管外徑<50±0.50mm±0.40mm≥50±1%±0.75%壁厚<4±12.5%±10%(最小值為±0.40mm)(最小值為±0.30mm)≥42015%±10%12.50%>20±12.5%±10%冷拔(軋)管外徑6月10日±0.20mm±0.10mm>1030±0.40mm±0.20mm>3050±0.45mm±0.25mm>50±1%±0.5%壁厚≤1±0.15mm±0.12mm>13+15%,10%±10%>3+12.5,10%±10%備注：對外徑不小于351mm的熱擴管，比后允許偏差為±18%。　　結構用無縫鋼管單位(每米)重量表外徑mm壁厚mm1.51.61.822.22.52.833.2每米重量KG752.712.93.253.63.954.474.995.335.68762.762.943.293.6544.535.055.45.75802.93.093.473.854.224.785.335.76.07833.023.213.644.384.965.545.926.31853.093.293.694.094.495.095.686.076.46893.243.453.874.294.715.335.956.366.77903.273.493.914.344.765.396.026.446.86953.463.694.144.595.035.76.376.817.251003.643.884.364.835.316.016.77.187.651023.733.974.454.935.146.136.857.327.811083.954.214.725.235.746.57.267.778.281104.024.284.815.335.856.637.47.928.431204.384.675.255.836.397.248.098.669.221255.476.076.667.548.429.039.611307.868.789.4101338.058.989.6210.2514010.1410.7915010.8811.58外徑mm壁厚mm3.544.555.566.577.5每米重量kg100.56110.65120.730.79130.820.89140.910.99150.991.091.171.23161.081.181.281.35171.171.281.391.48181.251.381.51.6191.341.481.611.731.841.92201.421.581.721.851.972.07211.511.681.831.972.12.22221.61.781.942.12.242.37231.681.872.052.222.372.52241.771.972.162.342.512.662.812.93251.862.072.282.472.642.812.973.11272.032.272.52.712.923.113.293.45282.112.372.612.843.053.263.453.63292.22.472.722.963.193.43.613.83.98302.292.562.833.033.323.553.773.974.16322.462.763.053.333.593.854.094.324.53342.632.963.273.583.874.144.414.664.9352.723.063.383.744.294.574.835.09362.813.163.53.824.144.444.735.015.27382.983.353.724.074.414.745.055.355.64403.153.553.944.324.695.035.375.76.01423.323.754.164.564.955.335.696.046.3844.53.5444.444.875.295.76.096.476.84453.584.044.494.935.365.776.176.566.94483.844.344.835.35.766.216.657.087.49504.014.545.055.556.046.516.977.427.86514.14.645.165.676.176.667.137.68.05534.274.835.385.926.446.957.457.948.42544.364.935.496.046.587.17.618.118.6564.535.135.176.296.857.47.938.468.97574.625.235.836.416.997.558.18.639.16604.885.526.166.787.397.998.589.159.71635.145.826.497.157.88.439.069.6710.26655.316.026.717.48.078.739.3810.0110.63685.576.317.057.778.489.179.8610.5311.19705.746.517.278.018.759.4710.1810.8811.567366.817.68.389.169.9110.6611.3912.11756.1777.828.639.4310.2110.9811.7412.48766.267.17.938.759.5610.3611.1411.9112.67806.67.58.389.2510.110.9511.7812.5913.41836.867.798.719.6210.5111.3912.2613.1213.96857.047.988.939.8610.7811.6912.5813.4514.33897.388.389.3810.3511.3312.2813.2214.1615.07907.478.489.4910.4711.4612.4313.3814.3315.22957.98.9810.0411.112.1413.1714.1915.1916.181008.339.4710.5911.7112.8213.9114.9916.0517.111028.59.6710.8211.9613.0914.2115.3116.417.481089.0210.2611.4912.713.915.0916.2717.4418.591109.1910.4611.7112.9514.1715.446.617.7818.9612010.0611.4412.8214.1815.5316.8718.219.5120.8112510.511.9413.3714.816.2117.6118.9920.3721.7313010.9212.4313.9315.4116.8818.3519.821.2322.6613311.1812.7214.2615.7817.2918.7920.2821.7523.2114011.7813.4215.0516.6518.2419.8321.422.9624.5115012.6514.416.1517.8819.621.312324.6826.3616013.5215.3817.2619.1120.9622.7924.626.4128.217014.3716.3718.3720.3422.3124.2726.2128.1430.0518015.2317.3619.4821.5923.6725.5727.8129.8733.7519018.3520.5822.8125.0227.2229.4131.5933.7520019.3321.6924.0426.3828.731.0233.3235.6 標簽：[db:標簽]