Welded pipe also called welded steel pipe

It is cut into narrow strip steel from a steel strip, and then cold processed with a mold to crimp it into a tube. The high-frequency submerged arc welding machine then welds a pipe seam. Due to the difference in welding process, it is divided into resistance welded pipe and automatic arc welded pipe. Due to the different welding form, it is divided into two types: straight seam welded pipe and spiral welded pipe.

Comparison of implementation standards home and abroad

China: GB/T3091-2015 Galvanized welded steel pipe for low pressure fluid transportation

GB/T14291-2006 (Welded steel pipe for mining fluid transportation)

American Standard: ASTM A252-98 (R2002) Standard Specification for Welded Steel and Seamless Steel Pipe Piles

German standard: DIN1615-84, DIN1626-84, DIN1628-84 non-alloy steel welded round pipe technical delivery conditions

Japanese standard: JIS-G3452/3457

Comparison of domestic and foreign Welded steel pipe grades

China: Q235B/Q345B

American Standard: ASTM A53/A283-D

German standard: (st33)1.003

Japanese standard: GGP/STRY41

The production process of straight seam Welded steel pipe is simple, with high production efficiency, low cost and rapid development

Welded steel pipes are often used to transport fluids and powdered solids and exchange heat. It is also an economical steel. Using steel pipes to manufacture building structure grids, pillars and mechanical supports can reduce weight, save metal by 20-40%, and increase construction speed.

Welded Steel pipe dimensions

Welded Steel pipe dimensions.pdf

HDT is a professional manufacturer and supplier of welded steel pipes. Provide high-quality and low-cost welded steel pipes. We manufacture and produce all types of welded steel pipes. If you have special needs, please contact us.

Welded steel pipes manufacturer and supplier in China

There are many welded steel pipe manufacturers in China. Welded steel pipes from China are of high quality and low price. HDT steel is one of the most powerful companies in welding steel pipes. You can customize welded steel pipes of different standards according to the requirements of your order. If you are looking for a welded steel pipe manufacturer, we are your best choice.