Pressure fluid transport with spiral submerged arc welded pipe SY5036-2000, is mainly used to transport oil, natural gas pipelines;
Pressure fluid transport with spiral seam high frequency welded steel pipe SY5038-2000, high frequency lap welding method for spiral seam high frequency welded steel pipe pressurized fluid delivery. Strong pressure steel, plastic, and easy welding and machining molding;
General low pressure fluid with spiral submerged arc welded pipe SY5037-2000, single-sided or double-sided automatic submerged arc welded into the legal delivery SAW pipe for water, gas, air and steam low pressure fluid.
Common spiral steel pipe standards are generally divided into: SY / T5037-2008 (Ministry of standard, also known as ordinary fluid pipes with spiral submerged arc welded pipe), GB / T9711.1-2008 (GB, also known as the oil and gas industries - Steel pipe technical delivery conditions for the first part: a grade steel (demanding a GB / T9711.2 B grade steel)), API-5L (American petroleum Institute, also known as line pipe; which is divided into PSL1 and PSL2 two levels), SY / T5040-2008 (pile with spiral welded steel pipe).
SY / T5037-2008 standard petroleum portion disposed generally referred to as the Ministry of standard
GB / T9711.1-2008 national spiral pipe, oil and gas industries - Steel pipe, A grade
General low pressure liquid delivery spiral seam high frequency welded steel pipe (SY5039-2000) is a hot-rolled steel strip coils for the tube, often warm spiral shape, using high frequency lap welding method for general low pressure liquid delivery spiral seam high frequency welded steel pipe.
Pile with spiral welded steel pipe (SY5040-2000) is a hot-rolled steel strip coils for the tube, often warm spiral shape, using double-sided submerged arc welding or high frequency welding, used in civil engineering structures, piers, bridges and other infrastructure pile with steel pipe