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Tianjin Yuantai Derun Pipe Manufacturing Group Co., Ltd., established in March 2002, is the biggest manufacturer specializing in  ERW square&rectangular tube/pipe, hollow section structure pipe, galvanized pipe and spiral welding pipe in China. Annual output reaches 5 million tons.Yuantai Derun has 59 production lines of black ERW pipe, 10 production lines of galvanized pipe and 3 production lines of spiral welding pipe. Square pipe from 20*20*1mm to 500*500*40mm, rectangular pipe from 20*30*1.2mm to 400*600*40mm,  welded pipe from 2”—60” can be manufactured. Yuantai Derun can manufacture square rectangular pipes as per the standards of ASTM A500, JIS G3466, EN10219, DIN2240, BS1387, AS1163.

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January 1993

Key team members of Yuantai Derun group began technical job in Tianjin Daqiuzhuang tube factory.

June 2002

Tianjin Yuantai Industry & Trade Co., Ltd. was founded, specialize in square, rectangular hollow steel pipe, hot galvanized welded (hot dip galvanized) square tube, the registered capital is USD 10 million.

May 2004

One of Yuantai subsidiaries Tangshan Lituo Steel Tube Co., Ltd. was established, specialize in square rectangular straight welded hollow steel pipe, registered capital is USD 10 million.

April 2005

Yuantai Steel Square Pipe Co. Ltd. was established, specialize in square welding hollow steel tube and galvanized tube, the registered is USD 2 million.

March 2010

Tianjin Yuantai Runxiang commercial trade company was established, specialize in strip steel trade, galvanized pipe agent, etc., the registered capital is USD 2 million.

March 2010

Tianjin Yuantai Derun pipe manufacturing group Co. Ltd. was formally established, marking that the production of high-frequency welded black, galvanized square pipe, spiral welded pipe, pipe logistics and pipe trade as one of the large-scale joint enterprise Yuantai Derun group was formally established, the group registered capital is USD 20 million.

March 2010

Tianjin Yuantai Derun Investment Co., Ltd. was formally established, specialize in steel pipe industry chain,lower industry mergers and acquisitions and industrial real estate development, the registered capital is USD 2 million.

August 2013

Tianjin Derun Runfeng pipe manufacturing Co. Ltd was established, specialize in hot galvanized (hot galvanizing) processing business, the registered capital is USD 8 million.

March 2015

Tianjin Yuantai Yuanda anti-corrosion insulation pipe Co., Ltd. was established, specialize in spiral welded pipe production and sales, the registered capital is USD 2 million.

August 2015

Tangshan Yuantai Derun Pipe Co., Ltd. was established, specialize in steel strip, steel pipe trade, registered capital is USD 1 million.

March 2016

Tianjin Yuantai Derun International Trade Co., Ltd was established,mainly engaged in international import and export business for Yuantai Group, registered capital is USD 2 million.

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What are the main components of galvanized steel pipe?-news-TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD-
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What are the main components of galvanized steel pipe?
What are the main components of galvanized steel pipe?

Galvanized steel pipe is not only made of iron and steel but also other elements.

Steel is an alloy of iron, carbon, and a small number of other elements, which is the main component of galvanized steel pipes, so it must be properly utilized when it is used. Corrosion-resistant alloy steels with a chromium-gold content of 10.5% and above are the general term for this class of metals. Added to this is carbon, an important hardening element that contributes to the strength of the steel. Chromium adds wear resistance and hardness, manganese helps to create texture, and is great for added sturdiness, strength, wear resistance, etc. And molybdenum, nickel, silicon, tungsten, vanadium, and other elements.


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The composition of the galvanized steel pipe is very important because it determines the performance of the square pipe.

The first is the plasticity of the square tube, which refers to the permanent deformation of the metal material under load without being damaged, which shows that its hardness is very good. Although there are methods for determining its hardness, its results have demonstrated its non-deformable quality. Then there is fatigue. Many machine parts work under cyclic loads, which will cause a certain amount of fatigue, but this situation of galvanized steel pipes will be smaller. Also, the impact toughness and strength are also very good, so we must make good use of them when using them.

These are the ingredients of commonly used galvanized steel pipes. It is because of these ingredients that they can have so many properties during use, which is convenient for our use.