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Rectangular Steel Pipe

Rectangular Steel Pipe Supplier

Rectangular Steel Tube, also called rectangular hollow section or rectangular steel tube, is a structural steel pipe with a rectangular hollow cross section. It offers good bending strength, easy fabrication, clean appearance, and efficient performance for construction, machinery, frames, furniture, fencing, and steel structure projects.

SKSteel supplies Rectangular Steel Tube with full sizes available, multiple steel grades, black, galvanized, painted, or coated surface options, mill test certificates, and fast delivery for global projects.

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Types of Rectangular Steel Tube SKSteel can supply

ERW Rectangular Steel Tube
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Galvanized Rectangular Pipe
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Black Rectangular Steel Tube
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Structure RHS Tube
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Cold Formed Rectangular Hollow Section
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Customized Rectangular Steel Tube
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Item Description
Product Rectangular Steel Tube / Rectangular Hollow Section / Rectangular Steel Tube
Standard ASTM A500, ASTM A513, EN10219, EN10210, JIS G3466, GB/T 6728, GB/T
Steel Grade Q195, Q235B, Q355B, S235JR, S275JR, S355JR, ASTM A500 Gr.A/Gr.B/Gr.C or Customized
Production Method ERW Welded, Hot Rolled, Cold Formed or Customized
Size 20x10mm-600x400mm or Customized
Wall Thickness 0.6mm-25mm or Customized
Length 5.8m, 6m, 9m, 12m or Customized
Surface Black, Oiled, Painted, Galvanized, Powder Coated or Customized
Certificate MTC EN10204 3.1 Available
For other specifications and customization requirements, please contact our professional sales team.

Chemical composition depends on the selected steel grade and project standard. The following table is a common reference for carbon steel rectangular pipe materials.

Element Content (%)
C According to steel grade requirement
Si According to steel grade requirement
Mn According to steel grade requirement
P Controlled by applicable standard
S Controlled by applicable standard
Property Value
Yield Strength According to grade and standard
Tensile Strength According to grade and standard
Elongation According to grade and standard
Weld Quality Inspected by size, straightness, corner radius, surface and project requirements

Applications

Thanks to its superior directional structural strength, Rectangular Steel Pipe is widely utilized across these core sectors:
Construction
Machinery
Automotive
Solar

Challenges & Needs

For high-demand structural assembly environments, we understand that you must avoid these risks when sourcing Rectangular Steel Pipe

Dimensional Inconsistency

Excessive wall thickness or profile tolerances making structural assembly difficult.

Internal Residual Stress

High internal stress causing warping during deep fabrication or welding.

Poor Anti-Corrosion

Low-quality coatings leading to premature rust in complex environments.

Our Supply Solutions

To avoid these risks entirely, SK STEEL has established a quality loop from pipe manufacturing to surface treatment.
As your source supplier, we utilize precision forming processes, ensuring Rectangular Steel Pipe has strict dimensional accuracy for high-standard pre-assembly.
We integrate laser cutting, bending, and anti-corrosion services, allowing the rectangular pipe to be installed efficiently upon arrival, eliminating on-site pre-processing and significantly cutting your installation time and total costs.
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Our Manufacturing Strength

  • Large Ready Stock
  • Full Size Range Available
  • Multiple Steel Grades Available
  • Black, Galvanized, Painted, and Coated Options
  • Competitive Export Pricing
  • Cutting and Processing Services
  • Mill Test Certificates Available
  • Fast Global Delivery
  • Professional Export Support
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Value-Added Services

We provide more than high-quality Rectangular Steel Pipe; we offer full-chain services to remove manufacturing hurdles

Precision Fabrication

3D laser cutting for complex mitered joints and slotting.

Surface Protection

PVC, painting, or anti-rust oil for significantly extended lifespan

Bending & Forming

Mandrel-assisted bending to create arches without wall buckling.

Transparent Delivery

Detailed material lists and quality reports to ensure full control.

Collaboration with SK STEEL

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FAQ for Steel Supply Services

What is Rectangular Steel Tube?

Rectangular Steel Tube is a hollow structural steel tube with a rectangular cross section. It is widely used in construction, machinery, frames, furniture, fencing, greenhouse, and steel structure projects.

SKSteel can supply Rectangular Steel Tube according to ASTM A500, ASTM A513, EN10219, EN10210, JIS G3466, GB/T 6728, GB/T and other project standards.

Rectangular Steel Tube has two long sides and two short sides, while Square Steel Pipe has four equal sides. Both are hollow structural sections and can be selected according to design, load, and appearance requirements.

Yes. SKSteel can supply black Rectangular Steel Tube, galvanized Rectangular Steel Tube, painted Rectangular Steel Tube, powder coated Rectangular Steel Tube, and other surface treatments according to project requirements.

Yes. Cutting, drilling, punching, welding, bending, coating, marking, packing, and custom length services are available.

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