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GB/T 9711.2 Spiral Welded Steel Pipe

GB/T 9711.2 Spiral Welded Steel Pipe

The GB/T 9711.2 spiral welded steel pipe is made of L245NB, L290NB, L360NB, L415NB, L360QB, L415QB, L450QB, L485QB, L555QB, L245MB, L290MB, L360MB, L415MB, L450MB, L485MB, or L555MB steels.

Technical specifications
The maximum outer diameter for this range of spiral welded pipe is 3048mm. The maximum wall thickness is 30 mm and the maximum length for a single spiral pipe reaches 20000mm.

Manufacturing procedures
The spiral welded steel pipe is produced according to GB/T 9711.2 standards. It is typically manufactured in the following steps. Firstly, the steel belts or plates should be molded. Secondly, the joint edging zone should be padded by metals and finally, the joints should be welded.

The spiral welded steel pipe is widely used in transferring combustible gas, including petroleum and natural gas. If you are looking for premium quality welded tubes for construction of natural gas pipelines, petroleum pipeline systems, etc., please feel secure in purchasing our spiral steel pipes.

ZHONGSHUN is a spiral welded steel pipe manufacturer and supplier. We also offer ERW steel pipe, galvanized steel pipes and line pipes. Our welded steel tubes feature high quality and meanwhile, they are offered at competitive prices. ZHONGSHUN is located in China, where the full chain of manufacturing coating steel pipe and steel piles can be completed, even in one city, which helps save our production cost. Our lower manufacturing cost saves your purchasing cost as well. More details of each product are shown on the page with description.

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