2. Certifications: ASTM A500 Grade C, suitable for North American market.
3. Customization: Holing, cutting, flange welding for modular construction.
4. Delivery: In - stock items in 2 days, custom specs in 20 days.
5. Application: Light industrial columns, warehouse shelving, compressive strength ≥235MPa.
6. Anti - corrosion: Hot - dip galvanizing (zinc layer ≥80μm), epoxy zinc - rich primer.
Square Tube Columns: Premium Steel Solutions by Shenyang Zhongda
Shenyang Zhongda Steel Structure Engineering Co., Ltd. is your trusted Square Tube Columns manufacturer and supplier. Our advanced production capabilities, stringent quality control, and customization options make us the ideal partner for your structural steel needs.
Product Description: Square Tube Columns
Our products are engineered for superior strength and versatility, perfect for your construction and industrial applications. Made from high-quality Q235B cold-formed steel, these columns offer exceptional durability and load-bearing capacity. Available in a wide range of sizes, from 50×50mm to 400×400mm, with wall thicknesses of 2-16mm, our products are suitable for various project requirements.
Key features of our products include:
- Precision-engineered for optimal structural integrity
- Right-angle seam welding technology for enhanced strength
- Compressive strength ≥235MPa, ensuring reliable performance
- Customizable dimensions to meet your specific project needs
- Versatile applications in light industrial factories and warehouse systems
Quality Control: Ensuring Excellence
At Shenyang Zhongda, we prioritize quality at every stage of production. Our products undergo rigorous testing and inspection, including:
- Non-destructive testing for structural integrity
- Dimensional accuracy checks
- Material composition analysis
- Welding quality inspections
- Load-bearing capacity tests
Why Choose Shenyang Zhongda for Your Square Tube Columns?
- Industry - leading expertise with over 60 landmark projects completed. Our team has tackled diverse challenges, delivering excellence across sectors for decades.
- State - of - the - art production facilities with 60,000 - ton annual capacity. Equipped with advanced tech, we can handle large - scale orders efficiently and on - time.
- ISO 9001/14001/45001 certified quality management systems. Stringent standards ensure top - notch products, environmental friendliness, and worker safety.
- Customization options to meet your unique project specifications. Tailor - made solutions, from design to execution, crafted to fit your exact needs.
- Competitive pricing and efficient delivery times. Cost - effective deals combined with quick turnarounds keep you ahead in the market.
Production Process
Our advanced manufacturing process ensures consistent quality:
- Material selection and cutting
- Cold-forming and welding
- Quality inspection and testing
- Surface treatment (if required)
- Packaging and shipping
OEM & ODM Services
Shenyang Zhongda offers comprehensive OEM and ODM services for the products, tailored to your specific requirements:
- Material Specifications: We use Q235B cold-formed square tubes, with section dimensions ranging from 50×50mm to 400×400mm and wall thicknesses of 2-16mm.
- Certifications: Our products meet ASTM A500 Grade C standards, making them suitable for North American markets.
- Customization Options: We offer holing, cutting, and flange welding services to support modular construction applications.
- Delivery Times: In-stock items ship within 2 days, while custom specifications typically require 20 days.
- Anti-Corrosion Treatments: Choose from hot-dip galvanizing (zinc layer ≥80μm) or epoxy zinc-rich primer for enhanced protection.
Project Case Studies
Our Square Tube Columns have been successfully utilized in numerous high-profile projects:
- Shenyang Dongta Cross-Hunhe River Bridge: 18,000-ton steel structure featuring our columns
- Jingha Expressway Expansion:The products providing crucial support
- Australian Mining Crushing Stations: Custom-designed columns for international clients
These projects showcase our ability to deliver top-quality products for diverse applications and challenging environments.


Certifications
Our products meet or exceed industry standards:
- ISO 9001:2015 Quality Management System
- ASTM A500 Grade C Certification
- EN 1090 Compliance for European markets
Packaging and Delivery
We ensure secure packaging and timely delivery:
- Bundled and strapped for safe transport
- Weather-resistant wrapping available
- Flexible shipping options to meet your schedule
Frequently Asked Questions
Q: What is the minimum order quantity for the products?
A: Our minimum order quantity is 10 tons, perfect for bulk purchases.
Q: Can you provide custom sizes for the products?
A: Yes, we offer customization services to meet your specific project requirements.
Q: What is the lead time for custom products?
A: Typically, custom orders require 20 days for production and delivery.
Contact Us
Ready to elevate your projects with our premium Square Tube Columns? Contact our expert team today at Ava@zd-steels.com for a personalized quote and expert consultation.