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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 high frequency welded steel pipe and straight-seam welded steel pipe

The difference between high frequency welded steel pipe and straight-seam welded steel pipe

Keywords :The difference between high frequency welded steel pipe and straight-seam welded steel pipe        Update : 2022-04-22        View(s) : 1162

1. Different nature A. High-frequency welded steel pipe : After the hot-rolled coil is formed by the forming machine, the skin effect and proximity effect of high-frequency current are used to heat and melt the edge of the tube blank, and pressure welding is performed under the action of the ex...

What types of oil pipelines are there

What types of oil pipelines are there

Keywords :What types of oil pipelines are there        Update : 2022-04-20        View(s) : 874

There are two types of oil pipelines : crude oil pipelines and refined oil pipelines . Different oil products are conveyed, and the conveying process is also different. Crude oil is generally relatively heavy, viscous, and easy to solidify; and refined oil is divided into gasoline, kerosene, d...

Analysis of Pressure Grade of Carbon Steel Spiral Pipe

Analysis of Pressure Grade of Carbon Steel Spiral Pipe

Keywords :Analysis of Pressure Grade of Carbon Steel Spiral Pipe        Update : 2022-04-18        View(s) : 878

The pressure ratio of the spiral steel pipe on the gas pipeline also has a downward trend. For pipe diameter, pressure, and pressure ratio, it is necessary to carry out optimization calculations and comparisons. When the transmission volume is determined, after the pipe diameter, pressure, and p...

How to cool after the quenching process of large-diameter steel pipe

How to cool after the quenching process of large-diameter steel pipe

Keywords :How to cool after the quenching process of large-diameter steel pipe        Update : 2022-04-14        View(s) : 941

1. What is the heat treatment process of large-diameter steel pipes ? (1) During the heat treatment process, the reason for the change in the geometry of the large-diameter steel pipe is the effect of heat treatment stress. Heat treatment stress is a relatively complex problem. It is not only...

Maintenance method of large diameter straight seam steel pipe

Maintenance method of large diameter straight seam steel pipe

Keywords :Maintenance method of large diameter straight seam steel pipe        Update : 2022-04-12        View(s) : 894

There is a significant difference between straight seam steel pipe and steel pipe. I believe many people think that the two are similar, the way of use and the performance they have, etc. Straight seam steel pipes are higher than steel pipes. The best types sold in the market are electric weld...

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