Square Tube Rectangular Structural Sections Square Carbon Steel Pipe and Tube

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Product Description

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Basic Information

Model NO.:Q235/Q355/Q345/A36/SS400/S235JR etc
Type:Seamless
Technique:Hot Rolled
Material:Carbon/Alloy Steel
Surface:Black Painted, Coated, Galvanized
Usage:Pipeline, Boiler, Machinery, Chemical, Construction
Section Shape:Square
Grade:A36 Ss400 Q235-Q355 S235-S275 A283 A572
Length:4m, 6m, 12m
Thickness:0.2- 60 mm
Processing:Welding, Punching, Cutting, Bending
Keyword:Hollow Section Tube
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Product Description

Square Tube Rectangular Structural Sections Square Carbon Steel Pipe And Tube

Square Tube Overview
Technical Specifications
MaterialA36 SS400 Q235-Q355 S235-S275 A283 A53 ST37 A572 10-55# 4140 4130 40CR etc.
StandardGB JIS DIN ASTM EN
Outer Diameter10x10mm---400x400mm or 10x20---200x400
Thickness0.5 - 12.5mm
Surface TreatmentBlack, Oil, Pre-galvanized, Hot-dipped Galvanized, Powder Coating
ApplicationsConstruction, Automobile, Bridge, Transportation, Agriculture, etc.
InspectionChemical & Mechanical Testing; Hydrostatic Test, Dimensional & Visual, Non-destructive Inspection
Surface Type Specifications (RHS/SHS/CHS)
Pre-galvanized OD 8x16 - 100x100mm, WT 0.8-2.3mm, L 1-6m
Hot Dipped Galvanized OD 20x20 - 500x500mm, WT 1.5-18.0mm, L 1-12m
Anticorrosive Coating 3PE / 3PP / FBE / Epoxy Coating Available

Specification Table

Specification Detail
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Detailed Photos

Pipe Detail 1
Pipe Detail 2
Pipe Detail 3
Pipe Detail 4
Pipe Detail 5
Pipe Detail 6
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Packaging & Shipping

Package: In Bundles, Bulks or seaworthy package. Special packing according to requirements. Ends: Plain/Beveled/Thread with Coupling or cap.

Shipment: 20FT Container (≤5.8m, 25-27tons) or 40FT Container (≤11.8m, 25-27tons).

Trade Terms: FOB / CIF / CFR. Payment: L/C, T/T.

Delivery: Within 15 days after receiving deposit.

Packaging Detail
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Applications

Our steel sections are widely used in construction, machinery, infrastructure, and heavy industrial applications.

Application Scenarios

Our Advantages

🏭 Professional Factory

Over 10 years of manufacturing history with dedicated production lines.

✅ High Quality

Stringent checks including chemical analysis, mechanical testing, and visual inspection.

💰 Competitive Pricing

Direct factory supply ensuring the best possible price for premium quality.

⚡ Fast Delivery

Efficient logistics and professional packing to ensure zero damage and on-time arrival.

🛠️ OEM Customization

Tailor-made samples and specifications according to project requirements.

🤝 Best Support

Specialized team available to solve application problems and inquiries within 24 hours.

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After Sales & Production Process

Pre-sale Service:

  • Quick response & reliable service
  • Professional trade team
  • Sufficient stock for short delivery time
  • Customized sizes and logos

After-sale Service:

  • Cheapest shipping calculation
  • Real-time tracking and loading photos
  • 24 hours online support
  • 100% product guarantee
Service Guarantee

Production Process Workflow

Production Process

Frequently Asked Questions

1. Are you a manufacturer?
Yes, we are professional manufacturers with our own factory and dedicated production lines.
2. Do you have a quality control system?
Yes, we have ISO, BV, and SGS certifications, along with our own internal quality control laboratory.
3. How long is your delivery time?
Generally, it is 7 days if goods are in stock. Otherwise, it takes around 15-20 days for production.
4. Can I get some samples?
We are glad to provide free samples to you, though we do not cover the freight costs.
5. What is your minimum order quantity (MOQ)?
Our standard minimum order quantity is 25 Tons.
6. Can you arrange shipment?
Yes, we work with designated sea and railway freight forwarders with decades of experience for the best pricing and service.

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