Huayang steel pipe anticorrosion production line construction project officially started
Leading Industry Standards and Empowering a New Future of Energy Transmission
In January 2025, Hebei Huayang Steel Pipe Co., Ltd. (hereinafter referred to as "Huayang Steel Pipe") officially announced the start of the construction project of high-specification internal and external anti-corrosion production lines. As a benchmark enterprise in the domestic steel pipe manufacturing field, Huayang Steel Pipe has always driven the development of the industry with technological innovation. This project aims to build an intelligent and high-precision anti-corrosion production line, comprehensively improve the corrosion resistance and service life of steel pipe products, and meet the core demand for high-quality steel pipes in the global energy transportation field. The project is expected to be completed and put into operation in June 2025, which will further consolidate the technological leading position of Huayang Steel Pipe in the industry.
Project background: Technology upgrading promotes high-quality development of the industry
With the increasingly stringent requirements for corrosion resistance of steel pipes in global energy pipelines, water conveyance projects and chemical industries, corrosion protection technology has become the core index to measure the quality of steel pipes. Grasping the market demand, Huayang Steel Pipe has invested in the construction of an intelligent production line with internal and external anti-corrosion, covering the whole process from pretreatment, coating processing to quality inspection, which can adapt to many international mainstream anti-corrosion standards and provide customized anti-corrosion solutions for domestic and foreign customers.
Core highlights of production line
1. Technical scheme of external anticorrosion production line
Process scope:
Diameter: φ 219–φ 1626 mm, wall thickness 6–27 mm, maximum weight of single pipe 18 tons;
Anti-corrosion types: single-layer epoxy powder (FBE), two-layer/three-layer polyethylene (2PE/3PE) and two-layer/three-layer polypropylene (2PP/3PP);
Applicable steel pipes: longitudinal submerged arc welded pipes, spiral welded pipes, ERW welded pipes and other steel pipes meeting API 5L and GB/T standards (materials cover Q235, Q345 to X120 steel grades).
Technical standards:
Strictly follow the authoritative standards at home and abroad, such as GB/T 3091, SY/T 5037, GB/T 9711 and API 5L, to ensure that the adhesion, thickness and weatherability of the anticorrosive coating reach the highest level in the industry.
2. Technical scheme of internal anticorrosion production line
Process scope:
Diameter: Φ 406 –Φ1626 mm (pipe length ≤12m below Φ 508mm), wall thickness 6–27mm;
Anticorrosion types: liquid epoxy drag-reducing coating and epoxy powder coating;
Applicable steel pipes: longitudinal submerged arc welded pipes, spiral welded pipes, ERW welded pipes and other steel pipes meeting API 5L and GB/T standards (materials cover Q235, Q345 to X120 steel grades).
Technical advantages:
High-precision spraying and curing technology is adopted to ensure the uniformity and compactness of the inner wall coating, significantly reduce the fluid transportation resistance and prolong the service life of the pipeline.
Technical Breakthrough and Industry Value
Full specification coverage:
The production line is suitable for ultra-wide pipe diameter (φ 219–φ 1626 mm) and ultra-thick steel pipe (27mm) to meet the requirements of complex scenes such as long-distance oil and gas pipelines and deep-sea pipelines and cables.
Multi-material and multi-standard adaptation;
Strictly follow the highest international and domestic standards such as API 5L and GB/T 9711, and be compatible with Q235, Q345 to X120 steel grade materials, as well as various steel pipe types such as longitudinal submerged arc welded pipe, spiral welded pipe, ERW welded pipe, etc., so as to ensure the deep matching between the anticorrosion technology and the performance of the steel pipe body.
Industry value empowerment:
Through the collaborative upgrade of internal and external anti-corrosion technologies, Huayang Steel Pipe not only prolongs the anti-corrosion life of products, but also provides customers with diversified anti-corrosion solutions from land pipelines to deep-sea projects with the service mode of "full specification+customization", which significantly reduces the maintenance cost of the whole life cycle and helps the efficient construction and safe operation of energy transmission infrastructure.
Huayang steel pipe always adheres to the drive of technological innovation and the guidance of customer demand, and constantly promotes the development of steel pipe anticorrosion technology. The introduction of the technical scheme of internal and external anti-corrosion production lines is another important milestone in the field of anti-corrosion technology of Huayang steel pipe, and it is also an important upgrade to the industry standard. In the future, Huayang Steel Pipe will continue to devote itself to technological innovation and provide customers with better products and services.
