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Threeway Steel Co., Ltd

E-mail: sales@srtsteelpipe.com

Address: 22nd Floor, Royal Wing Tower, Long Champ International Building, No.9 Xiangfu Road, Changsha, Hunan, China, PC: 410116

Phone:0086-731-8873-9521  

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Steel Tube Classification

Keywords :        Update : 2016-11-23        View(s) : 2013

1、according to production methods classification (1)seamless pipe - hot-rolled pipes, cold-rolled pipes, cold-drawn tubes, extruded tubes, pipe jacking (2) Welded Pipe (a)in accordance with sub-processes - arc welded pipe, ERW pipe (high frequency, low frequen...

SSAW Steel Pipe Weld Defect and Detection

Keywords :        Update : 2016-11-22        View(s) : 2074

Because  ssaw steel pipe  can be made by a coil width continuous forming welding production, easy automation, and using double-sided automatic submerged arc welding type, there are a variety of testing method to check weld quality assurance checks. Therefore, when laying oil pipel...

Piling Pipe

Keywords :        Update : 2016-11-21        View(s) : 81

Piling Pipe   is widely used in coastal, river, lake area. Offshore deepwater terminal project in the country have also been large-scale construction in coastal areas, and as a major deep-water dock pile bearing capacity, generally use the large diameter spiral weld pipe, in addition...

Difference of LSAW,ERW and SSAW

Keywords :        Update : 2016-11-20        View(s) : 2116

ERW is high-frequency resistance welding straight seam welded pipe; LSAW is submerged arc welding straight seam welded pipe; Both belong to straight seam welded pipe , but the welding process are different. So you can't say one of them on behalf of the straight seam welded pipe. More commo...

How to Detect the Quality of SSAW steel pipe

Keywords :        Update : 2016-11-20        View(s) : 2105

SSAW steel pipe factory should be done before the mechanical performance test and flattening test, and flaring test, and to achieve the standard requirements. Spiral steel pipe quality inspection method is as follows: 1, From the face of it, that is visual inspection. Visual inspection of we...

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