21質量計算◉丸管Ｗ：単位質量kg/ｍ ｔ：厚さｍｍ Ｄ：外径ｍｍ Ｌ：長さｍ［単位質量/代表寸法］数値の丸め方JIS Z 8401により有効数字３桁に丸める小数点以下はJISの丸め方による計算質量単位質量１本の質量総質量計算方法Ｗ＝0.02466ｔ（Ｄ－ｔ）単位質量×Ｌ１本の質量×本数◉角管 /一般構造用角形鋼管Ｗ：単位質量kg/ｍ ｔ：厚さｍｍ A、B：辺の長さｍｍ Ｌ：長さｍ数値の丸め方JIS Z 8401により有効数字３桁に丸める小数点以下はJISの丸め方による計算質量単位質量１本の質量総質量計算方法Ｗ＝0.0157ｔ（Ａ+Ｂ－3.287ｔ）単位質量×Ｌ１本の質量×本数1.01.201.21.431.621.61.882.382.132.882.883.643.643.894.894.892.02.312.932.623.563.564.504.504.826.076.072.32.623.342.984.064.065.145.145.506.956.958.398.757.858.753.2 3.49 4.50 3.99 5.50 5.50 7.01 7.01 7.51 9.52 9.5211.5 12.0 10.8 12.0 4.06.716.718.598.5911.7 11.7 14.2 14.9 13.3 14.9 4.57.437.439.559.5513.1 13.1 15.9 16.6 14.9 16.6 6.09.4517.0 17.0 20.8 21.7 19.3 21.7 40ｘ4050ｘ5060ｘ3060ｘ6075ｘ4575ｘ75100ｘ50 120ｘ40 100ｘ100125ｘ75 120ｘ120125ｘ125150ｘ75 150ｘ100呼称厚さ（mm）辺の長さ Ａ×Ｂ（mm）質量計算0.80.4850.5480.6751.00.2890.3160.3670.4020.4460.5100.5230.6020.6810.7600.8140.8380.9150.9860.9941.03 1.09 1.17 1.23 1.31 1.47 1.58 1.20.3400.3730.4350.4760.5300.6070.6210.6750.6810.7160.7690.8110.9060.9711.00 1.09 1.18 1.19 1.23 1.30 1.40 1.47 1.56 1.66 1.75 1.84 1.89 1.60.4380.4810.5640.6190.6900.7930.8130.8840.8920.9391.01 1.07 1.19 1.28 1.32 1.44 1.55 1.57 1.62 1.71 1.85 1.94 2.07 2.19 2.32 2.44 2.50 2.95 1.80.4840.5330.6260.6880.7680.8830.9060.9850.9941.05 1.13 1.19 1.33 1.43 1.47 1.61 1.74 1.75 1.82 1.92 2.08 2.18 2.32 2.46 2.61 2.74 2.81 3.31 2.00.5280.5820.6860.7550.8430.8880.9720.9961.08 1.09 1.15 1.24 1.31 1.47 1.58 1.63 1.78 1.92 1.94 2.01 2.12 2.30 2.41 2.56 2.72 2.89 3.03 3.11 3.66 呼称厚さ（mm）外径（mm）6.03.343.824.144.755.43 10.4 12.3 14.1 16.0 19.8 5.52.703.133.573.874.427.469.6011.3 13.0 14.8 18.2 2.30.6520.7710.8510.9531.00 1.10 1.13 1.23 1.24 1.31 1.41 1.49 1.67 1.80 1.85 2.03 2.19 2.21 2.29 2.42 2.63 2.75 2.93 3.11 3.30 3.47 3.56 4.20 4.92 5.63 6.35 7.80 2.60.7180.8530.9431.06 1.12 1.22 1.26 1.37 1.38 1.46 1.58 1.67 1.87 2.01 2.08 2.28 2.46 2.48 2.57 2.72 2.95 3.09 3.30 3.50 3.71 3.90 4.00 4.73 5.55 6.35 7.16 8.80 3.21.111.251.331.461.501.641.661.751.892.002.112.262.432.512.752.983.013.123.303.583.764.014.264.524.764.885.776.787.768.7710.8 3.51.421.611.791.892.05 2.17 2.292.442.632.993.383.894.926.287.398.479.5611.8 4.01.802.112.292.432.562.742.963.363.824.405.577.138.399.6310.9 13.4 4.52.322.522.672.833.033.273.734.244.896.217.979.3910.8 12.2 15.0 5.02.522.742.913.083.303.584.086.848.7910.4 11.9 13.5 16.6 12.713.815.917.319.120.021.722.224.024.225.427.228.630.031.834.035.038.141.041.342.745.048.650.854.057.260.563.565.076.389.1101.6 114.3 139.8
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