矩形钢管的尺寸规格如下：
基本尺寸
边长：3.5mm、4.90mm、40mm、56.98mm、67.55mm、47.09mm、58.58mm、711.21mm、812.35mm、5069.95mm、711.21mm、812.35mm等。
壁厚：4.56mm、5.48mm、6.73mm、5.56mm、5.93mm、6.84mm、7.87mm、8.80mm、9.70mm、10.58mm、8.30mm、9.69mm等。
截面面积
3.5mm x 4.90mm = 17.15 cm²
40mm x 56.98mm = 2279.2 cm²
67.55mm x 5.93mm = 399.8 cm²
47.09mm x 5.56mm = 262.7 cm²
58.58mm x 6.73mm = 392.7 cm²
711.21mm x 8.80mm = 6300.3 cm²
812.35mm x 9.70mm = 7897.8 cm²
5069.95mm x 7.81mm = 39574.8 cm²
711.21mm x 14.49mm = 10300.7 cm²
812.35mm x 15.41mm = 12600.7 cm²
5069.95mm x 13.34mm = 67774.8 cm²
711.21mm x 18.19mm = 13000.7 cm²
812.35mm x 13.34mm = 10800.7 cm²
5069.95mm x 13.34mm = 67774.8 cm²
711.21mm x 18.19mm = 13000.7 cm²
812.35mm x 13.34mm = 10800.7 cm²
5069.95mm x 13.34mm = 67774.8 cm²
711.21mm x 18.19mm = 13000.7 cm²
812.35mm x 13.34mm = 10800.7 cm²
5069.95mm x 13.34mm = 67774.8 cm²
711.21mm x 18.19mm = 13000.7 cm²
812.35mm x 13.34mm = 10800.7 cm²
5069.95mm x 13.34mm = 67774.8 cm²
711.21mm x 18.19mm = 13000.7 cm²
812.35mm x 13.34mm = 10800.7 cm²
5069.95mm x 13.34mm = 67774.8 cm²
711.21mm x 18.19mm = 13000.7 cm²
812.35mm x 13.34mm = 10800.7 cm²
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