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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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Quality inspection method of spiral steel pipe

Quality inspection method of spiral steel pipe

Keywords :Quality inspection method of spiral steel pipe        Update : 2023-01-09        View(s) : 1

The quality inspection method for spiral steel pipe is as follows: 1 Judging from the surface, that is, in visual inspection. Visual inspection of welded joints is a simple procedure with various inspection methods and is an important part of finished product inspection, mainly to find welding...

What are the commonly used materials for the outer anti-corrosion layer of steel pipes

What are the commonly used materials for the outer anti-corrosion layer of steel pipes

Keywords :What are the commonly used materials for the outer anti-corrosion layer of steel pipes        Update : 2023-01-05        View(s) : 610

Commonly used steel pipeline corrosion coatings include traditional petroleum asphalt or asphalt enamel, coal tar and coal tar enamel, polyethylene, and polypropylene tapes. From a technical point of view, these anti-corrosion materials can be used for the prefabrication of the anti-corrosion la...

What are the heat treatment methods for spiral steel pipes

What are the heat treatment methods for spiral steel pipes

Keywords :What are the heat treatment methods for spiral steel pipes        Update : 2023-01-03        View(s) : 541

1. Thermomechanical treatment High-temperature thermomechanical treatment can improve the yield ratio and elastic limit of spiral steel pipe . Improve the comprehensive mechanical properties, fatigue properties, and stress relaxation properties of the spiral steel pipe. Reducing the ductile-bri...

Selection of welding skills for stainless steel pipe fittings

Selection of welding skills for stainless steel pipe fittings

Keywords :Selection of welding skills for stainless steel pipe fittings        Update : 2022-12-29        View(s) : 481

1. Argon arc welding is a welding technique that uses argon as a shielding gas. Also known as argon gas-shielded welding. It is to pass argon protective gas around the arc welding to isolate the air from the welding area and prevent the oxidation of the welding area. Argon arc welding technology is ...

Quenching Technology for Straight Seam Welded Steel Pipe

Quenching Technology for Straight Seam Welded Steel Pipe

Keywords :Quenching Technology for Straight Seam Welded Steel Pipe        Update : 2022-12-27        View(s) : 529

The surface quenching and tempering heat treatment of straight seam welded steel pipe is usually carried out by induction heating or flame heating. The main technical parameters are surface hardness, local hardness, and effective hardened layer depth. Vickers hardness tester can be used for hard...

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