Guangxi Nanning Canghai Steel Co., Ltd. was established in 2010, covering an area of 30,000 square meters with a building area of 12,000 square meters. The total investment is 150 million yuan. It is equipped with 2 advanced double-sided submerged arc spiral steel pipe production lines and 8 double-sided submerged arc straight seam steel pipe production lines, with an annual production capacity of up to 100,000 tons. The company has complete production, processing, equipment, and testing facilities, as well as strong technical capabilities.
Our products include spiral steel pipes with a diameter range of φ219-φ3420 and wall thickness range of 6mm-30mm, as well as large-diameter straight seam steel pipes (thick-walled straight seam coiled pipes) [with wall thickness up to 70mm]. The diameter of coiled pipes can be customized according to customer requirements.
Production materials include 2420, Q235, Q345, #10 steel, #20 steel, 16Mn, L245, L290, L360, and X42-X70 steel grades. Our products comply with the SY/T5037-2000, GB/T9711.1-1997, and API Spec 5L standards. They are widely used in and sold for applications such as natural gas, petroleum, chemical industry, power, thermal energy, water supply and drainage, sugar manufacturing, paper industry pipelines, as well as piling and steel structures.