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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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Eddy's current non-destructive testing method for welding seam of spiral steel pipe

Eddy's current non-destructive testing method for welding seam of spiral steel pipe

Keywords :Eddy's current non-destructive testing method for welding seam of spiral steel pipe        Update : 2022-06-13        View(s) : 33

As an efficient special means of transportation, pipeline transportation has played an increasingly important role in the fields of oil and natural gas transportation. At present, domestic large-diameter transportation pipelines are mainly constructed with spiral welded steel pipes . To ensure the ...

How is the spiral seam submerged arc welded steel pipe used for anti-corrosion

How is the spiral seam submerged arc welded steel pipe used for anti-corrosion

Keywords :How is the spiral seam submerged arc welded steel pipe used for anti-corrosion        Update : 2022-06-09        View(s) : 29

1. Mainly use tools such as wire brushes to grind the surface of the steel. The cleaning and preheating of the spiral welded steel pipe can remove the loose or warped scale, rust, welding slag, etc. The rust removal of hand tools can reach the Sa2 level, and the rust removal of power tools can...

The difference between straight seam welded pipe and spiral welded pipe

The difference between straight seam welded pipe and spiral welded pipe

Keywords :The difference between straight seam welded pipe and spiral welded pipe        Update : 2022-06-07        View(s) : 1

Metallurgical Properties of Fabrication Materials The raw material of the spiral welded pipe is a hot-rolled coil, and the straight seam welded pipe is made of a steel plate socket. The weight of the alloy contained in the coil is less than that of the steel plate, and it is for this reaso...

Repair requirements for the shortcomings of spiral steel pipe welds

Repair requirements for the shortcomings of spiral steel pipe welds

Keywords :Repair requirements for the shortcomings of spiral steel pipe welds        Update : 2022-06-02        View(s) : 48

The repair requirements for the shortcomings of spiral steel pipe welds are as follows: The minimum length of the repair weld is 50mm. If the defect direction on the base metal of the steel pipe is allowed, the repair welding seam should be along the circumferential direction. Repair welds s...

Heating requirements for spiral steel pipes

Heating requirements for spiral steel pipes

Keywords :Heating requirements for spiral steel pipes        Update : 2022-05-31        View(s) : 47

Before the steel is hot rolled, heating the raw material not only improves the mental plasticity, reduces the deformation force, but also facilitates rolling. In addition, during the heating process of the steel, some structural defects and stresses caused by the ingot can also be eliminated for the...

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