Top 10 Square Tube Factory in China 2026

Introduction to Square Tube

Square tubes are a crucial type of steel product widely used in various industries. They are hollow structural sections with a square cross - section. Square tubes are known for their high strength, good corrosion resistance, and excellent load - bearing capacity. These features make them suitable for applications in construction, machinery manufacturing, automotive industry, and furniture production. In the construction field, square tubes are used for building frames, support structures, and curtain walls. In machinery manufacturing, they are employed to create machine frames and components. The automotive industry utilizes square tubes for chassis and body structures, while in furniture production, they are used to make frames for chairs, tables, and cabinets.

Top 10 Square Tube Factories in China

1. Guilin Lijia Metals Co., Ltd

Guilin Lijia Metals Co., Ltd is a well - established enterprise in the square tube manufacturing industry. It is located in the beautiful city of Guilin, known for its scenic landscapes. The company has a long - standing reputation for producing high - quality square tubes.

The manufacturing process at Guilin Lijia Metals Co., Ltd is highly advanced. They start with carefully selected raw materials, ensuring the purity and quality of the steel. The production line is equipped with state - of - the - art machinery that allows for precise sizing and shaping of the square tubes. The company adheres to strict quality control measures at every stage of production. From the initial inspection of raw materials to the final testing of finished products, each step is monitored to meet international quality standards.

In terms of product range, Guilin Lijia Metals Co., Ltd offers a wide variety of square tubes. They can produce square tubes with different thicknesses, side lengths, and surface treatments. Whether customers need square tubes for architectural applications that require a smooth and aesthetic finish or for heavy - duty industrial use, the company can meet their needs.

• Features in Square Tube Production:
  • High - Precision Manufacturing: The company uses advanced rolling and welding technologies to ensure that the square tubes have accurate dimensions and a uniform cross - section, which is crucial for applications where precision is required.
  • Diverse Surface Treatments: They offer square tubes with different surface treatments such as galvanization, powder coating, and painting. These treatments enhance the corrosion resistance of the tubes and also provide an attractive appearance.
  • Customization Capability: Guilin Lijia Metals Co., Ltd can customize square tubes according to the specific requirements of customers. They can adjust the size, thickness, and material composition of the square tubes to meet different project needs.

  
  

• Company Advantages:
  • Location Advantage: Guilin has a well - developed transportation network, which enables the company to efficiently transport its products to domestic and international markets.
  • Skilled Workforce: The company has a team of experienced engineers and workers who are proficient in square tube manufacturing. Their expertise ensures the high quality of the products.
  • Customer - Oriented Service: Guilin Lijia Metals Co., Ltd is committed to providing excellent customer service. They work closely with customers to understand their needs and provide timely solutions.Website: https://www.lijiatube.com/

  
  

2. Tianjin Baode Steel Pipe Group Co., Ltd

Tianjin Baode Steel Pipe Group Co., Ltd is a large - scale enterprise in the steel pipe industry, with a significant presence in the square tube market. The company is located in Tianjin, one of the major industrial cities in China. It has a large production base with advanced production equipment.

The company's production process starts with the procurement of high - quality steel billets. These billets are then heated, rolled, and welded to form square tubes. Tianjin Baode Steel Pipe Group Co., Ltd has a strict quality control system in place. They use advanced testing equipment such as ultrasonic testing, X - ray testing, and hydrostatic testing to ensure the quality and integrity of the square tubes.The product range of Tianjin Baode Steel Pipe Group Co., Ltd includes square tubes for various industries. They produce thin - walled square tubes for lightweight applications and thick - walled square tubes for heavy - load applications. The company also offers customized square tubes with special specifications.

• Features in Square Tube Production:
  • Large - Scale Production Capacity: The company has a large - scale production line that can produce a large number of square tubes in a short period. This makes them suitable for large - scale infrastructure projects.
  • Advanced Welding Technology: They use advanced welding technology to ensure strong and reliable welds in the square tubes, which improves the overall strength and durability of the products.
  • Quality Assurance: The strict quality control system ensures that every square tube produced meets high - quality standards, reducing the risk of product failure.

  
  

• Company Advantages:
  • Industry Experience: With years of experience in the steel pipe industry, the company has a deep understanding of the market and customer needs.
  • Research and Development Capability: Tianjin Baode Steel Pipe Group Co., Ltd invests heavily in research and development. They are constantly exploring new materials and production processes to improve the quality and performance of their square tubes.
  • Supply Chain Management: The company has an efficient supply chain management system, which ensures the stable supply of raw materials and timely delivery of products.

  
  

3. Shanghai Baosteel Industry Co., Ltd

Shanghai Baosteel Industry Co., Ltd is a well - known name in the steel industry. It is a subsidiary of Baosteel Group, one of the largest steel producers in China. The company is located in Shanghai, a global financial and industrial hub.

Shanghai Baosteel Industry Co., Ltd has a high - tech production base with advanced production and testing equipment. The company starts with high - grade steel materials from Baosteel's own production. The production process is highly automated, which improves production efficiency and product quality. The company has a comprehensive quality management system that complies with international standards such as ISO 9001.The company's square tube products are widely used in high - end industries such as aerospace, high - speed rail, and marine engineering. They offer square tubes with high strength, good corrosion resistance, and excellent fatigue performance.

• Features in Square Tube Production:
  • High - Quality Materials: Using high - grade steel from Baosteel, the square tubes have excellent mechanical properties and corrosion resistance.
  • Advanced Manufacturing Technology: The automated production process ensures high precision and consistency in the production of square tubes.
  • Application - Specific Design: The company designs square tubes according to the specific requirements of different industries, such as aerospace - grade square tubes with strict weight and strength requirements.

  
  

• Company Advantages:
  • Backed by a Large Group: As a subsidiary of Baosteel Group, the company has strong financial support and access to advanced technology and resources.
  • Brand Reputation: Baosteel has a world - class brand reputation, which gives customers confidence in the quality of the square tubes produced by Shanghai Baosteel Industry Co., Ltd.
  • Global Market Reach: The company has a wide global sales network, which enables it to sell its square tubes to customers around the world.

  
  

4. Shandong Steel Group Rizhao Co., Ltd

Shandong Steel Group Rizhao Co., Ltd is an important member of Shandong Steel Group. It is located in Rizhao, a coastal city in Shandong Province. The company has a large - scale steel production base with modern facilities.

The production process of Shandong Steel Group Rizhao Co., Ltd for square tubes involves advanced smelting, rolling, and finishing techniques. They have a well - established quality control department that monitors the production process from start to finish. The company uses high - quality iron ore and other raw materials to ensure the high quality of the square tubes.The company's square tube products are used in a wide range of industries including construction, energy, and transportation. They offer square tubes with different grades and specifications to meet the diverse needs of customers.

• Features in Square Tube Production:
  • Coastal Location Advantage: The coastal location provides easy access to raw material transportation by sea, reducing transportation costs.
  • Integrated Production System: The company has an integrated production system that includes iron - making, steel - making, and tube - making, which allows for better quality control and cost - effectiveness.
  • Energy - Efficient Production: Shandong Steel Group Rizhao Co., Ltd uses energy - efficient production technologies, which not only reduces production costs but also is environmentally friendly.

  
  

• Company Advantages:
  • Group Synergy: Being part of Shandong Steel Group, the company can share resources and technologies with other subsidiaries, enhancing its overall competitiveness.
  • Local Industry Support: Rizhao has a well - developed steel - related industry chain, which provides the company with good support in terms of raw material supply and market demand.
  • Research and Innovation: The company invests in research and development to improve the quality and performance of its square tubes, and to develop new products.

  
  

5. Ansteel Group Corporation

Ansteel Group Corporation is one of the oldest and largest steel enterprises in China. It is located in Anshan, Liaoning Province. The company has a long - history of steel production and a rich experience in square tube manufacturing.

The production process at Ansteel Group Corporation is based on its long - standing expertise and advanced technology. They have a complete set of production equipment from raw material processing to finished product manufacturing. The company places great emphasis on quality control, with multiple inspection points throughout the production process.Ansteel's square tube products are widely used in many domestic and international projects. They offer a variety of square tubes, including those for general construction use and those for special engineering requirements.

• Features in Square Tube Production:
  • Historical Experience: With decades of experience in steel production, the company has a deep understanding of the square tube manufacturing process, which ensures the stability and high quality of the products.
  • Diverse Product Range: Ansteel can produce square tubes with different sizes, wall thicknesses, and material grades, meeting the needs of different industries.
  • Technology Inheritance: The company inherits advanced technology and production techniques from its long - term development, and continuously improves and innovates.

  
  

• Company Advantages:
  • Brand Influence: Ansteel has a high - profile brand in the global steel market, which gives it an edge in attracting customers.
  • Research and Development Strength: The company has a strong research and development team that is constantly exploring new materials and production processes for square tubes.
  • Resource Integration: Ansteel can integrate its internal resources effectively to ensure the efficient production and supply of square tubes.

  
  

6. Wuhan Iron and Steel (Group) Corporation

Wuhan Iron and Steel (Group) Corporation, also known as WISCO, is a major steel producer in China. It is located in Wuhan, a central industrial city in China. The company has a large - scale production base and a comprehensive production system.

The production of square tubes at WISCO starts with high - quality iron ore and other raw materials. The company uses advanced smelting and rolling technologies to produce square tubes with excellent mechanical properties. WISCO has a strict quality management system that meets international standards.The square tube products of WISCO are used in many important national projects, such as large - scale bridges, high - rise buildings, and power plants. They offer high - strength and high - performance square tubes.

• Features in Square Tube Production:
  • High - Performance Products: WISCO's square tubes are known for their high strength, good toughness, and excellent corrosion resistance, which are suitable for high - end engineering applications.
  • Advanced Production Facilities: The company has advanced production facilities that can produce square tubes with high precision and high efficiency.
  • Quality - Driven Production: The strict quality management system ensures that the square tubes meet the highest quality requirements.

  
  

• Company Advantages:
  • Strategic Location: Wuhan is a transportation hub in central China, which provides convenient transportation for raw material supply and product distribution.
  • Technical Innovation: WISCO invests a lot in technical innovation. It has developed many advanced technologies and processes for square tube production.
  • Industry Leadership: As a leading enterprise in the steel industry, WISCO has a strong influence on the industry and can drive the development of square tube technology.

  
  

7. Jiangsu Shagang Group Co., Ltd

Jiangsu Shagang Group Co., Ltd is a large - scale private steel enterprise in China. It is located in Zhangjiagang, Jiangsu Province. The company has a modern production base and a high - level management team.

The production process of Jiangsu Shagang Group Co., Ltd for square tubes is characterized by high - efficiency and high - quality. They use advanced electric arc furnace technology for steel - making, which is energy - efficient and environmentally friendly. The company has a strict quality control system that ensures the quality of the square tubes.The square tube products of Jiangsu Shagang Group Co., Ltd are widely sold in the domestic and international markets. They offer square tubes for various applications such as construction, machinery, and agriculture.

• Features in Square Tube Production:
  • Energy - Efficient Production: The electric arc furnace technology used in steel - making reduces energy consumption and environmental pollution.
  • Flexible Production Capacity: The company can adjust its production capacity according to market demand, ensuring timely delivery of products.
  • Cost - Effective Products: Through efficient production management, Jiangsu Shagang Group Co., Ltd can produce cost - effective square tubes without sacrificing quality.

  
  

• Company Advantages:
  • Private Enterprise Flexibility: As a private enterprise, it has more flexibility in decision - making and market response compared to state - owned enterprises.
  • Market - Oriented Strategy: The company closely follows market trends and customer needs, and continuously adjusts its product portfolio and production strategy.
  • Talent Introduction and Training: Jiangsu Shagang Group Co., Ltd attaches great importance to talent introduction and training, which ensures the continuous improvement of its production technology and management level.

  
  

8. Hebei Steel Group Co., Ltd

Hebei Steel Group Co., Ltd is a large - scale steel enterprise group in China. It is formed by the integration of several major steel enterprises in Hebei Province. The company has a huge production scale and a wide product range.

The production of square tubes at Hebei Steel Group Co., Ltd involves multiple production bases and advanced production technologies. They have a comprehensive quality control system that covers the entire production process. The company uses high - quality iron ore and scrap steel as raw materials to produce square tubes with good quality.The square tube products of Hebei Steel Group Co., Ltd are used in many infrastructure projects across China. They offer a wide range of square tubes with different sizes and specifications.

• Features in Square Tube Production:
  • Large - Scale Production: The company has a large - scale production capacity, which can meet the large - quantity demand of large - scale infrastructure projects.
  • Diversified Raw Material Sources: Using both iron ore and scrap steel as raw materials provides more flexibility in production and helps to control costs.
  • Standardized Production Process: The standardized production process ensures the consistency and stability of the square tube products.

  
  

• Company Advantages:
  • Regional Agglomeration Advantage: Hebei Province is a major steel - producing region in China. The company can benefit from the regional agglomeration effect in terms of raw material supply, technology exchange, and market sharing.
  • Group Synergy: The integration of multiple steel enterprises within the group enables resource sharing, cost reduction, and improved overall competitiveness.
  • Policy Support: The company can receive certain policy support from the local government due to its important role in the regional economy.

  
  

9. Nanjing Iron and Steel United Co., Ltd

Nanjing Iron and Steel United Co., Ltd is a well - known steel enterprise in China. It is located in Nanjing, a historical and cultural city in Jiangsu Province. The company has a modern production base and advanced production technology.

The production process of Nanjing Iron and Steel United Co., Ltd for square tubes is based on high - quality raw materials and advanced manufacturing techniques. They have a strict quality control system that includes online monitoring and offline testing. The company continuously invests in research and development to improve the quality and performance of its square tubes.The square tube products of Nanjing Iron and Steel United Co., Ltd are widely used in the construction, machinery, and energy industries. They offer square tubes with high strength and good corrosion resistance.

• Features in Square Tube Production:
  • High - Quality Raw Materials: The company uses high - quality iron ore and other raw materials to ensure the high quality of the square tubes.
  • R & D - Driven Production: Continuous investment in research and development enables the company to develop new products and improve the existing ones.
  • Quality - Oriented Management: The strict quality control system ensures that every square tube meets high - quality standards.

  
  

• Company Advantages:
  • Location and Talent Advantage: Nanjing is a city rich in talent and technological resources. The company can attract high - quality professionals and access advanced technologies.
  • Market Reputation: The company has a good market reputation for its high - quality products and excellent service.
  • Customer - Centered Service: Nanjing Iron and Steel United Co., Ltd focuses on customer needs and provides personalized service to its customers.

  
  

10. Handan Iron and Steel Group Co., Ltd

Handan Iron and Steel Group Co., Ltd is a large - scale steel enterprise in Hebei Province. It is located in Handan, a city with a long - standing steel - making tradition. The company has a large production base and a complete production line.

The production process of Handan Iron and Steel Group Co., Ltd for square tubes starts with the selection of high - quality iron ore. They use advanced smelting, rolling, and finishing processes to produce square tubes. The company has a strict quality control system that ensures the products meet national and international standards.The square tube products of Handan Iron and Steel Group Co., Ltd are used in various industries such as construction, transportation, and manufacturing. They offer square tubes with different sizes and surface treatments.

• Features in Square Tube Production:
  • Traditional Steel - Making Heritage: The long - standing steel - making tradition in Handan gives the company a deep understanding of the production process and quality control of square tubes.
  • Comprehensive Production Line: The complete production line allows for efficient production and quality control at every stage.
  • Surface Treatment Expertise: The company has expertise in surface treatment technology, which can enhance the corrosion resistance and appearance of the square tubes.

  
  

• Company Advantages:
  • Local Industry Cluster: Handan has a well - developed steel - related industry cluster. The company can benefit from the local supply chain and technology exchange.
  • Cost - Control Capability: Through efficient production management and cost - control measures, the company can offer cost - effective square tube products.
  • Market Expansion: Handan Iron and Steel Group Co., Ltd is constantly expanding its market share both at home and abroad through product innovation and marketing efforts.

  
  

Conclusion

China's square tube manufacturing industry is highly competitive, with these top 10 factories leading the way. Each of these enterprises has its own unique features and advantages in square tube production. Some are known for their high - precision manufacturing, others for their large - scale production capacity or advanced technology. Companies like Guilin Lijia Metals Co., Ltd offer excellent customization and customer - oriented service, while Shanghai Baosteel Industry Co., Ltd benefits from the strong support of a large group and a global market reach.

These factories not only meet the domestic demand for square tubes in various industries such as construction, machinery, and transportation but also play an important role in the international market. With continuous investment in research and development, technology improvement, and quality control, they are likely to maintain their leading positions in the global square tube market in the coming years. As the demand for square tubes continues to grow with the development of infrastructure and industrialization, these top 10 factories will continue to drive the innovation and development of the square tube manufacturing industry in China.