Tianjin Tianyingtai Steel Pipe Co., Ltd. is one of the most credible manufacturers and suppliers of q235 carbon steel welded square tube in China. Welcome to consult the quotation and import cheap q235 carbon steel welded square tube made in China here from our factory.
| thickness | 1-200mm;or as required | Length: | 2000-16000mm,or as required | ||||||
| Dimensions | 10*20-600*800(mm) | Technique | Hot Rolled Or Cold Rolle | ||||||
| Heat Treatment | Annealed; Quenched; Tempered | Surface treatment | Rust remove, black painting,Galvanized, antirust oil, varnish, 3PE, | ||||||
| Certification: | CE, ISO, SGS,BV,Mill Certificate | Standard: | ASTM,JIS,GB,DIN,EN | ||||||
| price terms | FOB,CRF,CIF,EXW, CPT | Payment Terms | T/T, L/C at sight,West Union | ||||||
| Grade | Q195-Grade B, SS330, SPC, S185 | ||||||||
| Q215-Grade C,CS Type B, SS330, SPHC, | |||||||||
| Q235---Grade D, SS400, S235JR, S235JO, S235J2, | |||||||||
| Q345---SS500, ST52,S355JR | |||||||||
| Delivery Detail | Standard has Stock; Normal About 3-5days; Custom-made 15-20days;According to order's quantity. | ||||||||
| Packing | standard export packing (inside:water proof paper,outside:fumigated wooden box) | ||||||||
| Hexagon Shape Bundle, Covered With Tarpaulin, Containers Or In Bulk | |||||||||
Applications
🏗️ Construction – Building frames, columns, beams, roof structures, curtain walls
🏭 Industrial Facilities – Factory sheds, warehouses, workshops, mezzanines
🌉 Infrastructure – Bridges, pedestrian walkways, bus shelters, traffic structures
🚧 Fencing & Gates – Security fencing, decorative gates, balustrades, handrails
🚜 Agriculture – Greenhouse frames, livestock pens, irrigation structures, machinery
🚛 Transportation – Trailer chassis, truck bodies, railway carriages, container frames
🪑 Furniture & Storage – Shelving units, racks, workbenches, retail displays
⚙️ Mechanical & Equipment – Machine guards, conveyor frames, material handling equipment
🏟️ Sports & Recreation – Stadium structures, playground equipment, gym frames
Why Choose TYT Steel?
| Our Strength | Your Benefit |
|---|---|
| 🏭 Direct manufacturer | Factory-direct pricing, no middleman |
| 📦 Massive stock inventory | Fast delivery on standard sizes |
| 🔧 Full in-house processing | Cut-to-length, drilling, welding, coating - one-stop service |
| 📑 International certifications | Smoother customs clearance, project compliance |
| 🌍 60+ export countries | Proven global supply capability |
📞 Request a Free Quote - Send us the required size, wall thickness, length, surface treatment, and quantity. Our team will provide a competitive offer within 12 hours, including full specifications, lead time, and shipping options.
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