8" Electric Resistance Welded Pipe Welded Beveled End

High Frequency Straight Seam Welded Uses In Water 8"ERW Steel Pipe

Astm a53 pipe(also referred to as ASME SA53 pipe) is intended for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas and air lines. It is suitable for welding and for forming operations involving coiling, bending, and flanging, subject to certain qualifications. ASTM A53 pipe covers Seamless and Welded, Black nominal (average) wall pipe for coiling, bending, flanging and other specialpurposes and is suitable for welding. 

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.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.

According to the different welding technology of high frequency straight seam welded steel pipe can be divided into straight seam high frequency resistance welded steel pipe and straight seam high frequency induction welded steel pipe. The forming process generally adopts the rolling cold forming method. The diameter of high frequency straight seam welded steel pipe is generally small, generally below 660mm

or 26in outside diameter.