Welded steel pipe common specifications

Welded steel pipes, also known as welded pipe, welded steel pipe is a steel pipe with seams that is bent and deformed into round, square and other shapes by steel strip or steel plate and then welded into shape. The general fixed size is 6 meters.

ERW WELDED PIPE grade: Q235A, Q235C, Q235B, 16Mn, 20#, Q345.

Common materials: Q195-215; Q215-235

Implementation standards: GB/T3091-2015,GB/T14291-2016 ,GB/T12770-2012 ,GB/T12771-2019 , GB-T21835-2008

Application scope: Waterworks, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction. Divided by function: liquid transportation (water supply, drainage), gas transportation (gas, steam, liquefied petroleum gas), for structural use (for piling pipe, for bridges; wharf, road, building structure pipe).