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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

Hotonline: 0086-187-7406-7534 


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Difference of LSAW,ERW and SSAW

Keywords :        Update : 2016-11-20        View(s) : 1402

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) : 1345

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...

Difference between SSAW Steel Pipe and LSAW Steel Pipe on Rupture

Keywords :        Update : 2016-11-18        View(s) : 1270

For the  ssaw steel pipe , although the result of the tensile test specimens substantially independent of sampling direction, but the test results v Charpy impact specimen was closely related to the sampling direction. When sampling along the rolling direction CVN maximum value when the ve...

Difference of Fluid Pipe and Structure Steel Pipe

Keywords :        Update : 2016-11-18        View(s) : 1271

Fluid pipe is a hollow section, from the beginning to the end no weld steel pipe. With steel pipe manufacturing annular parts, can improve material utilization, simplifying the manufacturing process, material saving and processing time, such as rolling bearing ring, jack sets, at present has been w...


Keywords :        Update : 2016-11-17        View(s) : 1394

Straight seam high frequency (ERW) by welding and induction welding is divided into different forms of contact of two welding, hot-rolled wide coil as raw material, through pre-bending, continuous forming, welding, heat treatment, sizing, straightening, cutting, etc. step short compared to the spira...

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