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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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Causes of uneven steel tube wall thickness

Causes of uneven steel tube wall thickness

Keywords :steel tube        Update : 2020-07-01        View(s) : 964

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) : 985

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) : 946

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) : 901

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...

 Welding Flanges

Socket Welding Flanges

Keywords :Welding Flanges        Update : 2020-06-19        View(s) : 926

Socket-Weld Flanges has a female socket in which pipe is fitted. Fillet welding is done from outside on the pipe.   The socket welding flange is similar to a slip-on flange except it has a bore and a counter-bore dimension.   The counter-bore ...

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