Slim Wall Straight Seam Welded Pipe

For applications demanding high strength, excellent dimensional consistency, and a superior surface finish, precision-engineered welded pipe solutions are essential. Our Light Wall Longitudinal Welded Steel Tube is manufactured to meet these rigorous standards, offering an optimal balance between material efficiency and structural integrity. This product category is particularly suited for projects where weight reduction is a priority without compromising performance. Similarly, our Low Thickness Longitudinal Welded Tube provides exceptional reliability for frameworks and fluid conveyance systems requiring thin yet durable profiles. When a flawless aesthetic and precise tolerances are non-negotiable, our Fine Wall Straight Seam Steel Pipe delivers. Finally, for the most demanding lightweight structural and mechanical applications, the Thin Gauge Longitudinal Seam Welded Pipe stands out for its remarkable strength-to-weight ratio and consistent weld quality.


The manufacturing process for Slim Wall Straight Seam Welded Pipe involves high-frequency induction welding or TIG welding of precision-rolled steel strips, ensuring a clean, continuous, and robust longitudinal seam. This method guarantees excellent concentricity and a smooth internal bore, minimizing flow resistance and facilitating easy cleaning or coating. The pipes undergo rigorous non-destructive testing, including eddy current or ultrasonic inspection, to verify weld integrity and wall uniformity. Available in a wide range of diameters and customized lengths, Slim Wall Straight Seam Welded Pipe is a versatile component favored in industries such as automotive manufacturing for roll cages and chassis components, furniture design for modern structural elements, and architectural frameworks for railings and lightweight supports. Its consistent quality and reliable performance make it a preferred choice for engineers and fabricators.

Key specifications for our standard range include:

  • Material Grades: ASTM A513, ASTM A500 Grade B, ST37, ST52, or equivalent carbon steels.
  • Wall Thickness Range: 0.7mm to 3.0mm, catering to precise application requirements.
  • Outer Diameter (OD) Range: From 10mm to 150mm, offering extensive flexibility.
  • Standard Lengths: 6 meters, 5.8 meters, or cut-to-length per customer request.
  • Surface Finish: Mill finish, galvanized, powder-coated, or pre-painted.
  • Welding Standard: High-frequency electric resistance welding (HFW/ERW), ensuring a seamless and strong joint.
Outer Diameter (mm) Wall Thickness (mm) Material Grade Typical Application
12 - 25 0.8 - 1.2 A513 Furniture frames, Handrails
26 - 50 1.0 - 1.8 A500 Gr. B Automotive components, Display structures
51 - 90 1.2 - 2.3 ST37 / ST52 Light structural frames, Conveyor systems
91 - 150 1.5 - 3.0 A500 Gr. B / ST52 Architectural columns, Machinery guards

Additional product features and certifications:

  • Tolerances: OD: ±0.2mm, Wall Thickness: ±10%, Length: ±5mm.
  • Testing: Hydrostatic testing, flattening test, flaring test, and visual inspection as standard.
  • Certifications: ISO 9001:2015 quality management system certified manufacturing.
  • Packaging: Bundled with protective end caps and waterproof wrapping for secure shipping.

Hot Products

  • Hot-Dip Galvanized Elliptical Tube

    Hot-Dip Galvanized Elliptical Tube

    Hot-Dip Galvanized Oval Tubing Tianjin Xinlida Steel Pipe is a primary manufacturer with cross-border trade qualifications, boasting an annual production capacity of 50 million tons and an intelligent manufacturing system. Its products meet international standards and are exported to markets such as Southeast Asia and the Middle East, fully catering to procurement needs for greenhouse projects both domestically and abroad. Addressing common pain points associated with greenhouse frameworks—such as rust, vulnerability to wind and snow damage, high construction costs, and short service lives—the company’s flagship product is:Hot-Dip Galvanized Elliptical Tube Leveraging the dual advantages of a premium hot-dip galvanizing process and a high-strength oval cross-section structure, this product vastly outperforms standard round tubing and inferior cold-galvanized pipes. It offers multiple benefits, including long-lasting corrosion resistance, superior wind and snow resistance, lightweight ease of installation, and excellent cost-effectiveness. The factory supports custom length processing, pre-drilling, and flexible specification customization, ensuring rapid order fulfillment and significantly reducing costs for both greenhouse construction and long-term maintenance. It is the ideal high-quality framing material for various types of cold greenhouses, warm greenhouses, and smart greenhouse facilities.
  • Large Diameter Hot Rolled Seamless Steel Pipe

    Large Diameter Hot Rolled Seamless Steel Pipe

    Xinlida is a professional manufacturer of Large Diameter Hot Rolled Seamless Steel Pipe. This product is a kind of seamless hollow circular steel produced by hot rolling process and is widely used in industries such as petroleum, chemical engineering, power, mechanical manufacturing and construction. This product is made from high-quality steel billets through processes such as heating, piercing, rolling, and sizing. It features a wide range of sizes, large diameters, and controllable wall thickness. It is suitable for applications such as fluid transportation and structural support under high pressure, high temperature, and complex working conditions.
  • Spiral welded pipe for steel structures

    Spiral welded pipe for steel structures

    Tianjin Xinlida Steel Pipe Co., Ltd. focuses on its core steel pipe business, with Spiral welded pipe for steel structures being one of its core products. The products utilize mature welding technology, resulting in robust structures, excellent load-bearing capacity, and adaptability to various needs in steel structure construction, meeting relevant quality standards. Leveraging its import and export qualifications, the company engages in cross-border trade of spiral welded pipes for steel structures, covering overseas markets such as Southeast Asia and the Middle East. Its reliable quality and attentive service have earned recognition from customers both domestically and internationally. The products are highly adaptable, with specifications adjustable to meet the specific requirements of steel structure projects. The company provides efficient services throughout the entire process, from product selection to cross-border delivery, accurately matching needs and ensuring efficient order fulfillment, showcasing the company's strength and service advantages.
  • Rust-proof spiral welded pipe

    Rust-proof spiral welded pipe

    Rust-proof spiral welded pipe is a type of pipe made from hot-rolled steel strip through a spiral forming process. Its core advantage lies in the special rust-proof treatment technology applied to its surface, which effectively resists the erosion of the pipe body by humid and corrosive environments. Tianjin Xinlida Steel Pipe Co., Ltd. has upgraded the traditional spiral welded pipe manufacturing process to an automated production line by introducing intelligent production equipment. While ensuring the uniformity of welding, the three processes of pretreatment, coating spraying, and curing and drying make the rust-proof layer bond more tightly to the pipe body, extending its service life by 3-5 times compared to ordinary welded pipes.
  • Galvanized U-channel

    Galvanized U-channel

    Tianjin Xinlida Steel Pipe Co., Ltd. has long specialized in the manufacturing of steel pipes and structural steel, establishing a comprehensive business ecosystem that integrates domestic production, overseas bases, and global trade. Our galvanized U-channels offer a core competitive advantage by combining long-lasting corrosion resistance—achieved through hot-dip galvanizing that meets national standards—with a high-strength, one-piece formed structure. This solution effectively addresses four major industry pain points: structural corrosion, insufficient load-bearing capacity, lengthy construction periods, and high maintenance costs—challenges often encountered in coastal saline-alkali areas, humid mountainous regions, and environments subject to rain, snow, and low temperatures. We operate our own intelligent production facilities with substantial annual capacity and a full suite of advanced structural steel processing equipment. Adhering to the GB/T13912 galvanizing standard, we manufacture all U-channels using Q235B and Q355B grade steel, while offering services such as custom specifications, precision cutting, and prefabricated processing. Clients—whether for domestic projects or overseas trade—benefit from rapid production scheduling and flexible order adjustments; profile specifications and order quantities can be modified during production to meet project timelines and minimize inventory waste.
  • Galvanized Round Steel Pipe

    Galvanized Round Steel Pipe

    Tianjin Xinlida Steel Pipe Co., Ltd. is a professional production of China Galvanized Round Steel Pipe, with advanced high-frequency welding technology, product weld uniform, high strength, high production efficiency and cost economy, suitable for construction, machinery, petroleum, chemical, electric power, transportation and other fields.Product quality is strictly controlled according to national standards and industry requirements, stable and reliable.

Send Inquiry

X
We use cookies to offer you a better browsing experience, analyze site traffic and personalize content. By using this site, you agree to our use of cookies. Privacy Policy
Reject Accept