Rectangular Steel Tube STEP Files
Rectangular hollow sections by width×height and wall thickness. For beam placement and framing where orientation-dependent stiffness matters.
Free 3D CAD models (STEP AP214). Built to real standard dimensions; threads are simplified (plain shank) per free-library convention.
Standard: KS D 3568
DownloadRECT-30x20x1.2.step
Browse all sizes (64)
30×20 t1.230×20 t1.640×20 t1.240×20 t1.650×20 t1.650×20 t2.350×30 t1.650×30 t2.360×30 t1.660×30 t2.360×30 t3.260×40 t1.660×40 t2.360×40 t3.275×20 t1.675×20 t2.375×45 t1.675×45 t2.375×45 t3.280×40 t1.680×40 t2.380×40 t3.290×40 t2.390×40 t3.2100×20 t1.6100×20 t2.3100×40 t1.6100×40 t2.3100×50 t1.6100×50 t2.3100×50 t3.2100×50 t4.5125×40 t1.6125×40 t2.3125×75 t2.3125×75 t3.2125×75 t4125×75 t4.5125×75 t6150×75 t3.2150×75 t4.5150×80 t4.5150×80 t5150×80 t6150×100 t3.2150×100 t4.5150×100 t6150×100 t9200×100 t4.5200×100 t6200×100 t9200×150 t4.5200×150 t6200×150 t9200×150 t12300×200 t6300×200 t9300×200 t12350×150 t6350×150 t9350×150 t12400×200 t6400×200 t9400×200 t12
Using these STEP files in CAD
- STEP AP214 format opens directly in SolidWorks, Inventor, Fusion, CATIA, NX, FreeCAD, and most CAD systems.
- Per free-library convention, threads are not modeled (plain shank). These are for layout, clearance, and drawings — not fastening simulation.
- All dimensions use the standard's nominal values. For tolerance-critical use, check the allowances in the spec table.