
Large Diameter Carbon Steel Pipe
Large diameter carbon steel spiral welded pipe manufactured to international standards for water, oil, gas and structural projects....
Large Diameter Carbon Steel Pipe
Cangzhou Huishang Pipe Fittings Manufacturing Co., Ltd. is one of the leading manufacturers of large diameter carbon steel pipes in Cangzhou, Hebei Province. With more than 30 years of production experience, we supply high quality large diameter steel pipes to customers in more than 50 countries for a wide range of industrial applications.
Production Capability
Our factory is equipped with 15 automated spiral pipe production lines with a monthly capacity of 50 containers. We specialize in manufacturing large diameter carbon steel pipes using the spiral submerged arc welding process, which allows efficient production of pipes with diameters up to 3620 mm.
Product Quality
Every large diameter carbon steel pipe is manufactured under a strict quality management system certified to ISO 9001, CE and API standards. The pipes undergo comprehensive testing including hydrostatic testing, ultrasonic inspection and dimensional checks to ensure reliable performance in service.
Specifications
We supply large diameter carbon steel pipes with outer diameters from 219 mm to 3620 mm and wall thicknesses from 5 mm to 32 mm. Standard materials include Q235B and Q345B carbon steel. The pipes can be manufactured according to GB/T 9711, API 5L and ASTM A252 standards.
Applications
Our large diameter carbon steel pipes are widely used in urban water supply and drainage, oil and gas transmission, port piling, bridge construction and industrial piping systems. Their excellent strength and reliability make them a preferred choice for major infrastructure projects.
Why Choose Us
We offer competitive factory prices, stable product quality and professional customer service. Our experienced team provides technical consultation and complete logistics support for every order. Contact Cangzhou Huishang today for your large diameter steel pipe requirements.

