Square Steel Tube Supplier from China

Square and rectangular steel tubes for construction structures, fabrication and industrial projects. Available in various sizes for bulk and project supply.

Galvanized Square Pipe & Tube Supplier

High-quality galvanized square and rectangular steel pipes for construction, machinery, and industrial applications.

Galvanized square pipes and rectangular tubes are widely used in construction and industrial applications. Made from high-quality strip steel, these pipes are processed through uncoiling, flattening, curling, welding, and shaping, then cut into required lengths. The zinc coating enhances corrosion resistance, making them ideal for structural frameworks, machinery manufacturing, and fluid transportation in diverse environments.

Applications of Square Steel Tubes

Square steel tubes are widely used in:

• Steel structures and building frameworks
• Construction and infrastructure projects
• Machinery and fabrication
• Fencing and support structures

They are suitable for both structural and decorative applications.

Our square steel tubes are widely used in steel structures, building frameworks and fabrication projects.

We support contractors and project buyers with stable supply, flexible sizes and fast delivery from China.

galvanized square pipe for construction

Send us your required size, thickness and quantity, and we will provide a fast quotation.

Why Choose Our Square Steel Tubes

• Wide range of sizes and thickness options
• Stable supply from China steel market
• Competitive factory pricing
• Mixed container loading available
• Export experience for global construction projects

Export and Shipment

We regularly export square steel tubes to Africa, Southeast Asia and the Middle East.

Different specifications can be consolidated into one container for project supply.

Specification

Product Name
Carbon steel pipe
Material

Q195 = S195 / A53 Grade A
Q235 = S235 / A53 Grade B 

A500 Grade A / STK400 /

SS400 / ST42.2
Q345 = S355JR 

A500 Grade B Grade C

 

10#,20#,45#,Q235,Q345
Q195,Q215,Q345C,Q345A
 
16Mn,Q345B,T1,T2,T5,T9
T11,T12,T22,T91,T92,P1
P2,P5,P9
P11,P12,P22,P91,P92,
 
15CrMO,Cr5Mo,10CrMo910
12CrMo,13CrMo44,30CrMo
A333 GR.1,GR.3,GR.6,GR.7,etc
 
SAE 1050-1065
Color
Clean, blasting and painting or as required
Technique
Hot rolled/Cold rolled
Used
Shock absorber,Motorcycle accessories,drill pipe,Excavator accessories,Auto part,hight pressure boiler tube, honed tube,Transmission shaftetc
MOQ
5tons.We also can accept sample order
Capacity
200,000 tons/year
Shipment time
Within 15-20 days after receiving advance payment

Inspection

Mild Steel square Hollow Section Tube Inspection

Technical Specifications of Galvanized Square Pipes
Available in various sizes and thicknesses, our galvanized square and rectangular tubes meet international quality standards and can be customized to fit your project requirements.

Packaging Details:
1. Small OD: In hexagonal bundle with steel strips
2. Large OD: In bulk
3. Wrapped in waterproof plastic woven bag
4. Filled in wooden cases
5. As required


Delivery Detail:Shipped in 15-20 days after advance payment

Request a Free Quote Today

Looking for galvanized square pipes or rectangular steel tubes? Fill in the form below or contact us via WhatsApp to get specifications and pricing within 24 hours.