Hot dip galvanized spiral steel pipe, coated spiral steel pipe, oil delivery spiral steel pipe manufacturer

Description :

　　 Spiral steel pipe is mainly used in industry: Spiral pipe, also known as spiral steel pipe or spiral welded pipe, is made by rolling low-carbon structural steel or low-alloy structural steel strip into a pipe blank at a certain angle of the spiral line (called forming angle), and then welding the pipe seam together. It can produce large-diameter steel pipes with narrower strip steel. Spiral pipes are mainly used for the transportation of oil and natural gas pipelines, and their specifications are expressed as outer diameter * wall thickness. Spiral pipes can be single-sided welded or double-sided welded. Welded pipes should ensure that the hydrostatic test, tensile strength, and cold bending performance of the weld meet the requirements. Suitable for water engineering, petrochemical industry, chemical industry, power industry, agricultural irrigation, urban construction, it is one of the twenty key products developed in China. Used for liquid transportation: water supply and drainage.

　　 Spiral pipe, also known as spiral steel pipe or spiral welded pipe, is made by rolling low-carbon structural steel or low-alloy structural steel strip into a pipe blank at a certain angle of the spiral line (called forming angle), and then welding the pipe seam together. It can produce large-diameter steel pipes with narrower strip steel.

　　Common standards for spiral pipes: SY/T5037-2000 (departmental standard, also known as spiral seam submerged arc welded steel pipes for ordinary fluid transportation pipelines), GB/T9711.1-1997 (national standard, also known as technical delivery conditions for oil and gas industry transportation steel pipes: Grade A steel pipes (GB/T9711.2 Grade B steel pipes with strict requirements)), API-5L (American Petroleum Institute, also known as pipeline steel pipes); It is divided into two levels: PSL1 and PSL2. SY/T5040-92 (spiral seam submerged arc welded steel pipes for piles).

　　Spiral seam submerged arc welded pipe for pressurized fluid transportation: mainly used for pipelines transporting oil and natural gas. Steel pipes have strong pressure bearing capacity, good plasticity, and are easy to weld and process into shapes; Spiral seam submerged arc welded steel pipes for general low-pressure fluid transportation: Submerged arc welded steel pipes made by double-sided automatic submerged arc welding or single-sided welding method for general low-pressure fluid transportation such as water, gas, air, and steam.

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