Thick wall heavy caliber straight seam double submerged arc welding pipe

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Thick wall heavy caliber straight seam double submerged arc welding pipe


Main features:
tube has a longitudinal seam, inside and outside all use a submerged arc welding seam welded.
after the overall mechanical processing, steel pipe diameter expanding internal stress distribution of small and even, which can effectively prevent stress corrosion cracking, size, convenient for field of high precision welding construction.
represents the essence of the welding after welding process and the occurrence of the welding process, welding quality high stability.
weld easy to realize production process of non-destructive testing and process in the use of the wild NDT review.
product specifications, which can produce large range of small diameter, Great Wall thickness also can produce large diameter, Great Wall thickness of steel pipe.
In 2001 the company passed ISO9002 quality management system certification, and in May, 2003 smoothly passed iso9001-2000 quality management system certification.