Rust-proof spiral welded pipe

The core features of rust-proof spiral welded pipes

The superior characteristics of rust-proof spiral welded pipes are reflected in the dual optimization of materials and processes. The base material is made of Q235B or Q355B low-alloy steel, balancing strength and toughness, and capable of withstanding high-pressure environments. The rust-proof layer uses an epoxy resin or polyethylene composite coating, resistant to acid, alkali, and salt corrosion, making it particularly suitable for use in coastal or chemical industrial areas. Furthermore, the spiral forming process enables continuous production, with single pipe lengths reaching up to 18 meters, reducing on-site connection points and lowering the risk of leakage. Tianjin Xinlida has developed an intelligent correction system that controls weld seam offset within 0.5mm, further improving the pipe's sealing performance.

Application Scenarios: Covering Multiple Fields of Needs

Rust-resistant spiral welded pipes have a wide range of applications. In the construction industry, as pile foundation pipes, they can penetrate soft soil layers, providing stable support for high-rise buildings. In the energy sector, corrosion-resistant spiral welded pipes are the mainstream choice for oil and gas pipelines. After a Middle Eastern oilfield project adopted Xinlida products, the pipeline maintenance cycle was extended to 8 years. In the transportation sector, high-strength spiral welded pipes are used in the pile foundations of cross-sea bridges, with a single pipe bearing capacity exceeding 2000 tons. Tianjin Xinlida, relying on a "domestic production + overseas base" model, has provided customized rust-resistant spiral welded pipes for more than 30 projects in Southeast Asia, the Middle East, and other regions, supporting the production of all specifications from DN200 to DN3000.

Customized Services and Guaranteed Production Capacity

Tianjin Xinlida's factory is designed with an annual production capacity of 50 million tons, equipped with German-imported spiral forming machines and online ultrasonic testing equipment, enabling rapid response to customer needs for specification adjustments of rust-resistant spiral welded pipes. For example, a design change for an overseas project required the pipe diameter to be changed from DN800 to DN1000. The factory completed the first batch of orders in just 72 hours through modular production line switching. Furthermore, the company supports modifying order quantities before production and coordinates raw material procurement and production scheduling in real time through its ERP system, helping customers reduce the risk of inventory backlog.

Tianjin Xinlida Steel Pipe Co., Ltd. drives the upgrade of rust-resistant spiral welded pipes with technology, continuously providing corrosion-resistant, high-strength pipe solutions for global projects, from material selection and process control to guaranteed production capacity and customized services.