Spiral steel tube q235b spiral steel tube

Product Description:

The spiral pipe welding process is also the difference between SSAW and LSAW, which is the form of welding seam. The difference between SAW and ERW is the difference of welding process. According to the production method, steel pipe can be divided into two categories: seamless steel pipe and welded steel pipe. According to the production method, seamless steel pipe can be divided into: hot rolled seamless pipe, cold drawn pipe, precision steel pipe, hot expansion pipe, cold spinning pipe and extrusion pipe. Seamless steel tubes are made of high quality carbon steel or alloy steel.Commonly used standards of the spiral steel pipe can be divided into: SY/T5037-2008 (solid, also known as the common fluid conveying pipe with spiral seam submerged arc welding steel pipe), GB/T9711.1-2008 (national standard, also known as oil and gas industry conveying pipe delivery technical conditions in the first part: grade A steel pipe (GB/T9711.2 strict grade B steel pipe)), API 5 l (American petroleum institute, also known as the pipeline steel pipe; Two grades: PSL1 and PSL2), SY/ t5040-2008 (spiral welded steel pipe for pile)

Large diameter welded pipe is mostly spiral welding.

The commonly used helical pipe materials for structural reinforcement are as follows: Q235A, Q235B, Q345, L245, L290, X42, X52, X60, X70, X80, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb.

The reinforced spiral pipe used for structure is mainly used in water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction. Liquid transport: water supply, drainage, sewage treatment engineering, mud transport, Marine water transport. For gas transmission: gas, steam, LPG. For structure: piling pipe and bridge; Wharf, road, building structure pipe, Marine piling pipe, etc