矩形方管的规格型号尺寸如下：
国际标准矩形方管尺寸规格
400mm × 600mm × 6.0-16mm
300mm × 500mm × 6.0-16mm
200mm × 500mm × 6.0-16mm
200mm × 400mm × 6.0-16mm
200mm × 350mm × 6.0-16mm
200mm × 300mm × 6.0-14mm
150mm × 300mm × 5.0-14mm
150mm × 250mm × 5.0-14mm
350mm × 250mm × 5.0-14mm
150mm × 200mm × 3.0-12mm
其他矩形方管规格
50mm × 30mm × 2.0mm
60mm × 40mm × 2.5mm
80mm × 40mm × 3.0mm
100mm × 300mm × 4.0-12mm
60mm × 120mm × 2.5-6.0mm
300mm × 500mm × 6.0-16mm
100mm × 200mm × 3.0-12mm
60mm × 80mm × 2.0-5.0mm
200mm × 400mm × 6.0-16mm
100mm × 150mm × 3.0-12mm
50mm × 90mm × 3.0-4.0mm
200mm × 350mm × 6.0-16mm
80mm × 160mm × 3.0-8.0mm
50mm × 150mm × 3.0-6.0mm
200mm × 300mm × 6.0-14mm
80mm × 140mm × 3.0-8.0mm
50mm × 120mm × 3.0-6.0mm
150mm × 300mm × 5.0-14mm
80mm × 120mm × 2.5-8.0mm
50mm × 100mm × 1.5-5.0mm
150mm × 250mm × 5.0-14mm
80mm × 100mm × 2.0-8.0mm
50mm × 80mm × 2.0-5.0mm
350mm × 250mm × 5.0-14mm
60mm × 140mm × 3.0-6.0mm
50mm × 70mm × 1.5-5.0mm
这些规格型号的矩形方管在建筑、钢铁和造船等工程中有广泛应用。建议根据具体使用场景和需求选择合适的规格型号，并注意壁厚等参数，以确保承载能力和使用效果。