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LSAW Steel Pipe Introduction

Edit:Ausin Pipeline Material & Equipment Co.,Ltd   Date:May 22, 2017

Introduction to LSAW steel pipe Tube

LSAW steel pipe - straight seam submerged arc welded pipe. Longitudinal submerged arc welded pipe (LSAW steel pipe) is a single plate as a raw material, the LSAW steel pipe in the mold or molding machine pressure (volume) into a tube, the use of double-sided submerged arc welding and expansion from the production. Its finished product range is wide, the toughness, plasticity, uniformity and compactness of the weld are better, and it has the advantages of large diameter, thick wall, high pressure resistance and low corrosion resistance.

Construction of high strength, high toughness, high-quality long-distance oil and gas pipelines, the required large-diameter thick-walled LSAW steel pipe . According to the API standard, in the large oil and gas transmission pipeline, when through the alpine zone, the seabed, the urban population density area 1 class, 2 type area, straight seam submerged arc welded pipe is the only designated tube type. According to the different molding methods can be divided into:

UOE welded pipe: single sheet in the edge of the pre-bending, the U molding, O molding, welding, external welding, mechanical cold expansion and other processes;

JCOE pipe: that is, "J-C-O-E" pre-welding, forming, after welding and other cold expansion process;

HME welded pipe: by the mandrel rolling method according to "C-C-O" molding, after welding by cold expansion and other processes.


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