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Square Steel Pipe

Square Steel Pipe supplier

Square Steel Tube, also called square hollow section or square steel tube, is a structural steel pipe with equal side length and hollow cross section. It offers good strength, easy fabrication, clean appearance, and efficient load-bearing performance for construction, machinery, furniture, fencing, and steel structure projects.

SKSteel supplies Square 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.

Types of Square Steel Tube and Tube SKSteel can supply

ERW Square Pipe
Galvanized Square Pipe
Black Square Pipe
Structure Square Pipe
Cold Formed Square Hollow Section
Customized Square Steel Tube
We offer precise cold-formed and hot-finished specifications to ensure every Square Steel Pipe meets your structural engineering design requirements.
Item Description
Product Square Steel Tube / Square Hollow Section / Square 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 10x10mm-500x500mm 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 square 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
Pressure Performance Inspected by size, straightness, corner radius, surface and project requirements

Applications

Thanks to its flat surfaces and superior structural efficiency, Square Steel Pipe is widely utilized across these core sectors:
Construction & Infrastructure
Machinery & Equipment
Automotive & Transportation
Warehousing & Logistics

Challenges & Needs

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

Large Corner Radii

Rounded corners making assembly gaps wider and compromising the finished aesthetic.

Internal Residual Stress

High internal stress causing twisting during laser cutting or welding.

Poor Coating Adhesion

Coating flaking off, leading to rapid rust in outdoor applications.

Our Supply Solutions

As your source supplier, we utilize precision rolling, ensuring Square Steel Pipe has sharp corners and strict dimensional tolerances for high-standard pre-assembly.
We integrate laser cutting, bending, and anti-corrosion services, allowing the square pipe to be installed efficiently upon arrival, eliminating on-site pre-processing and significantly cutting your installation time and total costs.

WHY CHOOSE SKSTEEL FOR Square Steel Tube?

Value-Added Services

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

Precision End-Processing

3D laser cutting for complex mitered joints and slotting.

Surface Protection

Hot-dip galvanizing, powder coating, or priming for significantly extended lifespan.

Bending & Forming

Mandrel-assisted bending to create arches or rings without wall buckling.

Transparent Delivery

Detailed material lists and quality reports to ensure full control.

Collaboration with SK STEEL

FAQ for Steel Supply Services

What is Square Steel Tube?

Square Steel Tube is a hollow structural steel tube with equal side length. It is widely used in construction, machinery, furniture, fencing, greenhouse, and steel structure projects.

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

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

Yes. SKSteel can supply black Square Steel Tube, galvanized Square Steel Tube, painted Square Steel Tube, powder coated Square 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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