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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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steel pipes

Economics of thick-walled steel pipes

Keywords :steel pipes        Update : 2020-07-02        View(s) : 1654

steel pipes There are many other structural types of pipe fittings used in actual piping engineering to meet the requirements of various working conditions, especially special working conditions. In engineering design or selection, the higher the strength lev...

Causes of uneven steel tube wall thickness

Causes of uneven steel tube wall thickness

Keywords :steel tube        Update : 2020-07-01        View(s) : 1640

1. Uneven spiral wall thickness Causes: Uneven wall thickness of the piercing machine, unequal inclination of the two rolls, or too small amount of reduction in front of the plug. Uneven wall thickness caused by adjustment reasons, generally distributed spirally along the entire length o...

Construction preparation before welding large-diameter steel pipes

Construction preparation before welding large-diameter steel pipes

Keywords :large-diameter steel pipes        Update : 2020-06-28        View(s) : 1623

large-diameter steel pipes 1. Organize relevant operators to be familiar with construction drawings, rules and regulations, formulate welding procedures, and prepare welding operation instructions.   2. the welder should carry out the t...

straight seam steel pipes

Straight seam steel pipe induction ring installation

Keywords :Straight seam steel pipe        Update : 2020-06-24        View(s) : 1611

S traight seam steel tube high-frequency induction ring should be as close as possible to the position of the squeeze roller. The internal stress of the steel tube is small and evenly distributed, which can effectively prevent stress corrosion cracking, high dimensional accuracy, and easy on-si...

Method and characteristics of measuring length of straight seam steel pipe

Method and characteristics of measuring length of straight seam steel pipe

Keywords :straight seam steel pipe        Update : 2020-06-23        View(s) : 1624

1. Length measurement with grating ruler   The basic principle is that two fixed length grating scales are respectively provided on the outer sides of the two ends of the straight seam steel pipe , and the rod scale cylinder is used to drive the grating scale close to the t...

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