Hebei metal Ltd. is a construction materials company, which includes new product development, manufacture, sale and engineering service.Our core product are seamless steel pipes, welded steel pipes,buttweld pipe fitting and steel pipe flanges.

​We offer black-painted seamless steel pipes in a variety of size ranges to meet different diameter requirements. The product materials include multiple high-quality carbon steel grades, such as ASTM A53 Gr.B, ASTM A106 Gr.B, and API 5L Gr.B. Additionally, we provide high-strength API 5L series pipes to meet more demanding operational conditions.

Black hollow steel refers to hollow steel that has not undergone galvanization or surface coating treatment. Its surface presents a natural black oxide film, which provides a good foundation for corrosion resistance. According to the different cross - sectional shapes, black hollow steel can be mainly divided into three types: circular, square, and rectangular. They are widely used in load - bearing structures and space frames to meet the requirements of different architectural forms and engineering projects.

Galvanized hollow steel pipe is a square or rectangular-section steel pipe that has undergone hot-dip galvanizing treatment. It has a hollow structure inside. While maintaining sufficient strength, it improves the efficiency of transportation and installation. The hot-dip galvanizing process involves immersing the steel pipe into molten zinc liquid, forming a uniform and dense zinc layer on its surface, thus enhancing the corrosion resistance of the steel pipe.