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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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Pre-welding and welding of straight seam steel pipe

Pre-welding and welding of straight seam steel pipe

Keywords :Pre-welding and welding of straight seam steel pipe        Update : 2023-03-01        View(s) : 456

Pre-welding of straight seam steel pipes : pre-welding includes seams and welds. 1. The joint (that is, the forming seam) has no misalignment or the misalignment is less than the specified value. Generally, the amount of misalignment is ≤ 8% of the plate thickness, and the maximum is not more t...

8 common connection methods for the construction of steel pipes

8 common connection methods for the construction of steel pipes

Keywords :8 common connection methods for the construction of steel pipes        Update : 2023-02-27        View(s) : 543

According to the purpose and pipe material, the commonly used connection methods of construction steel pipelines are threaded connection, flange connection, welding, groove connection (clamp connection), ferrule connection, compression connection, hot melt connection, socket connection, etc. ...

How to choose a suitable storage warehouse for large-diameter steel pipes

How to choose a suitable storage warehouse for large-diameter steel pipes

Keywords :How to choose a suitable storage warehouse for large-diameter steel pipes        Update : 2023-02-23        View(s) : 486

(1) The warehouse should be selected according to geographical conditions. Generally, an ordinary closed warehouse is used, that is, a warehouse with a roof, a wall, tight doors and windows, and a ventilation device; (2) Do not stack together with acid, alkali, salt, cement, and other materials...

Anti-corrosion spiral welded steel pipe technology

Anti-corrosion spiral welded steel pipe technology

Keywords :Anti-corrosion spiral welded steel pipe technology        Update : 2023-02-22        View(s) : 559

Due to the relatively large individual mass of spiral welded steel pipes, they must be stacked outdoors, but it is difficult to avoid being exposed to the sun and rain, so the problem of rust has always plagued the storage time and conditions of spiral welded steel pipes. Steel wire brushes...

Why does precision steel pipe production need pickling

Why does precision steel pipe production need pickling

Keywords :Why does precision steel pipe production need pickling        Update : 2023-02-20        View(s) : 512

The role of pickling passivation in the process of prefabrication, welding, testing, and heat treatment, will make the surface of the steel pipe (carbon steel pipe, carbon copper pipe, stainless steel pipe) accumulate iron oxide, welding slag, grease, and other dirt so that the corrosion resista...

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