En10217-1 P235tr1 16 Inch SSAW Steel Pipe Liquid Transport

En10217-1 P235tr1 Standard For Liquid Transport Tube Ssaw Steel Pipe

SSAW Steel Pipe (Spiral steel tube) is a spiral welded steel tube made of strip steel coil as raw material, usually formed by warm extrusion, and welded by automatic double-wire double-side submerged arc welding process. TSpiral steel pipe is mainly used in tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction, is one of the 20 key products developed in China.For liquid transport: water supply, drainage.

For gas transmission: gas, steam, liquefied petroleum gas. For structural use: as pile driving pipe, as bridge; Pipes for wharves, roads, building structures, etc.The processed spiral steel pipe has greater flexibility in the size and specification range of diameter and wall thickness, especially in the production of high-steel grade thick wall pipe, especially in small and medium-sized thick wall pipe has incomparable advantages, which can meet the user's more requirements in the specification of spiral steel pipe.

Adopting the advanced double-sided submerged arc welding technology, the welding can be realized in the optimal position, and it is not easy to have the defects such as wrong side, deviation and incomplete welding, etc., and easy to control the welding quality.General low pressure fluid conveying, spiral seam submerged arc welded steel pipe SY5037-2000, using double-sided automatic submerged arc welding or single-side welding method for water, gas, air and steam and other general low pressure fluid conveying submerged arc welded steel pipe.Now the common standard of spiral steel pipe is generally divided into :SY/T5037-2008(Ministry standard, also known as the spiral seam submerged arc welded steel pipe for ordinary fluid transmission pipeline), GB/T9711.1-2008(national standard, also known as the oil and gas industry delivery technical conditions of steel pipe Part I:A-class steel pipe (GB/T9711.2 B-class steel pipe), API-5L(American Petroleum Association, also known as pipeline steel pipe;It is divided into two grades: PSL1 and PSL2), SY/T5040-2008(spiral welded steel pipe for piles).Generally speaking, there are three kinds: Ministry standard SY /5037, national standard GB /9711 and American standard API-5L, which are generally used for export. Different functions and testing standards are different. The testing process of spiral steel pipe is determined according to the customer needs of spiral steel pipe.