Product Specification
| Parameter | Details |
| Shape | Rectangular |
| Surface Treatment | Shot Blasting, Bared, Black Painted, Galvanized, Oiled or to your requirements |
| Out diameter | 10mm-600mm, other sizes negotiable |
| Wall Thickness | 1.2mm-30mm, other sizes negotiable |
| Length | Up to 16m |
| Tolerance of OD | ±0.15mm |
| Steel material | 220#, Q355, Q390, Q420, Q460, Q500, Q620, Q690, 35#, 45#, 40Cr, 12CrMo, 30CrMO, 35CrMo, 42CrMo, S235JRH, S275J0H, S275J2H, S355J0H, S355J2H, S355K2H, S275NH, S275NLH, S355NH, S355NLH, S420NH, S420NLH, S460NH, S460NH, S460NLH, BJ780, BJ890, YG550, YGS70, YGS100, YGS100BJ, YGS130, YGS150, YG960, ETC. |
| Technical Standard | GB/T 3094-2012, EN 10210 |
| Technique | Cold draw |
| Delivery condition | Annealed, Normalized, Tempered and quenched (Q&T) |
| Supply Ability | 5000 tons |
| Payments Term | T/T or L/C |
| MOQ | 1 ton |
Product Description
Seamless rectangular pipe is a steel tube with a rectangular cross-section, made from seamless round pipes via cold drawing processes. With no welding seams, these pipes offer excellent compressive, bending, and torsional strength.
Compared with welded rectangular pipes, seamless rectangular pipes are more reliable for projects requiring higher strength, pressure resistance, sealing, and corrosion resistance. Custom sizes, fixed lengths, and various surface finishes are available.
Product Features
- All non-standard shapes – Fast mold-making, low cost
- Extreme specs: Oversized, ultra-thin/thick, flat, sharp corners
- Small batches accepted
- Low-alloy grades: High strength, toughness, weldability, fatigue & cryogenic resistance
- 30% performance boost over welded tubes
Application
| Construction & Steel Structures | Beams, columns, frames, curtain wall supports |
| Machinery & Equipment | Machine structures, tool arms, heavy-duty equipment bases |
| Transportation | Trailer frames, chassis, container skeletons |
| Agricultural Structures | Greenhouse frames, fencing, agricultural supports |
Available Mold
Customization
With in-house tooling, material sourcing, and technical support, we offer flexible customization to meet your specific needs:
- Dimension Customization: Non-standard diameter, thickness, and length
- Material Options: Carbon steel, stainless steel
- Processing Services: Cutting, logo marking
- Surface Treatment: Painting, shot blasting, oiling, galvanizing
- Marking & Packaging: Custom logo, labels, and packaging options
We support drawing-based production, small batch trial orders, and fast sample delivery to help your projects start quickly.
Packaging & Delivery
We provide professional packaging and flexible delivery options based on your product and shipping needs:
- Packaging Methods:
- Steel-strapped bundles with labels
- Plastic wrap + woven fabric cover
- Export-grade wooden cases or pallets
- Plastic end caps for tube protection
- Delivery Options:
- Sea freight, truck transport, or rail shipment
- Common ports:
- Shanghai, Changsha
- Lead Time:
- Standard sizes: 7–15 days
- Custom orders: 30–45 days
Export documents such as CO, CQ, and third-party inspection reports are available upon request.
CTA Section
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FAQ Section
Q1:What’s the difference between seamless round pipes and welded round pipes?
A1:Seamless round pipes are formed without welds using hot rolling or cold drawing techniques, providing higher strength and pressure resistance compared to welded pipes.
Q2:What’s the MOQ?
A2:The minimum order quantity is usually 1 ton for standard sizes; special requirements can be negotiated.
Q3:Do you support third-party inspections?
A3:Yes, third-party inspections like SGS or BV can be arranged. Costs can be covered by the buyer or shared by both parties.
Q4:What’s the delivery time?
A4:Standard sizes are usually delivered within 7–15 days; customized products depend on processing requirements.
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