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Square Steel Tube
Cold-formed square steel tube with a regular hollow section, uniform wall thickness, easy fabrication, and efficient strength-to-weight performance for structures and frames.
| Material: | Q235B/Q235C/Q355B/Q355C/Q355ND; ASTM A36/A572 Gr50; EN S235/S355 series; JIS SS400/SM490; Russian St and 09G2S grades; stainless steel available |
| Dimensions: | Standard side-length stock available; oversized, thin-wall, and heavy-wall custom sizes can be produced |
| Length: | Standard 6 m, 9 m, and 12 m; cutting, punching, and beveling available |
| Surface: | Hot-rolled black, bright cold-drawn, and hot-dip galvanized finishes available |
Product Features
- Cold-bent high-frequency welded forming creates a regular square hollow section with uniform wall thickness.
- Lightweight hollow structure reduces material cost while maintaining stable bending and torsional performance.
- Flat cuts and good straightness support cutting, drilling, bending, beveling, and welding.
- Shot blasting, painting, and hot-dip galvanizing are available for indoor and outdoor projects.
Common Specifications
- Material: Q235B/Q235C/Q355B/Q355C/Q355ND; ASTM A36/A572 Gr50; EN S235/S355 series; JIS SS400/SM490; Russian St and 09G2S grades; stainless steel available
- Dimensions: Standard side-length stock available; oversized, thin-wall, and heavy-wall custom sizes can be produced
- Length: Standard 6 m, 9 m, and 12 m; cutting, punching, and beveling available
- Surface: Hot-rolled black, bright cold-drawn, and hot-dip galvanized finishes available
Applications
- Factory columns, equipment supports, operation platforms, and curtain-wall framing
- Sunrooms, guardrails, door/window frames, and outdoor decorative structures
- Heavy racks, machinery bases, and conveyor supports
- Road barriers, steel footbridges, and small load-bearing municipal structures
