4mm ST52 ERW Carbon Steel Line Pipes Chemical Industry

Water Engineering Petrochemical Industry Chemical Industry ERW Steel Pipe

Due to the use of hot rolled coil as raw material, the wall thickness of ERW steel pipe can be controlled within ±0.2mm or so, the two ends of the steel pipe are in accordance with the American APL standard or GB/T9711.1 standard, the end is repaired and beveled, and the delivery length is fixed.In recent years, various natural gas pipeline engineering and gas companies have widely adopted ERW steel pipe as the main pipe of urban pipeline.ERW steel pipe is straight seam Resistance Welding pipe, English Electric Resistance Welding, abbreviated as ERW, used for transporting oil, natural gas and other vapor liquid objects, can meet the high and low pressure requirements, currently in the world's transportation pipe field occupies a pivotal position.

The biggest difference between ERW steel pipe and seamless steel pipe is that ERW has a weld, which is also the key to the quality of ERW steel pipe.Modern ERW steel tube production process and equipment, because of the international, especially the United States and other years of unremitting efforts, so that the seamless ERW steel tube has been a relatively satisfactory solution.

High-frequency straight seam welded steel tube process: longitudinal shear -- uncoiling -- strip flattening -- head and tail shear -- strip butt welding-- sleeve storage -- forming -- welding -- removing burrs -- sizing -- flaw detection --flying cut -- initial inspection -- straightening of steel tubes -- pipe section processing -- hydrostatic test -- flaw detection -- printing and coating -- finished products.High frequency straight seam welded steel pipe is mainly used in water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction.