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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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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) : 617

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) : 654

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...

Causes of trachoma at the welding seam of spiral seam submerged arc welded steel pipe

Causes of trachoma at the welding seam of spiral seam submerged arc welded steel pipe

Keywords :Causes of trachoma at the welding seam of spiral seam submerged arc welded steel pipe        Update : 2022-05-27        View(s) : 1

Spiral steel pipe is made of strip steel through the coiling machine, bending in a spiral direction, and then double-sided submerged arc welding by a capacitor. In the production process of spiral steel pipe welding, many galvanized channel steel situations such as missing welding and misalign...

Causes of trachoma at the welding seam of spiral seam submerged arc welded steel pipe

Causes of trachoma at the welding seam of spiral seam submerged arc welded steel pipe

Keywords :Causes of trachoma at the welding seam of spiral seam submerged arc welded steel pipe        Update : 2022-05-25        View(s) : 557

Spiral steel pipe is made of strip steel passing through a coiling machine, bending in a spiral direction, and then double-sided submerged arc welding by capacitors. In the production process of spiral steel pipe welding, many galvanized channel steel situations such as missing welding and mis...

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