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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 Is Mechanical Tubing?-news-TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD-
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What Is Mechanical Tubing?
What Is Mechanical Tubing?

Mechanical tubing is a type of steel tubing that is specifically designed for mechanical applications. This type of tubing is made with precision and accuracy to ensure that it can withstand the stresses of mechanical usage.

Mechanical tubing is made from a variety of materials, including carbon steel, alloy steel, and stainless steel. The type of material used depends on the application and the specific requirements of the project. Carbon steel is commonly used for general mechanical applications, while alloy steel and stainless steel are used for applications that require higher strength or corrosion resistance.

One of the most important characteristics of mechanical tubing is its dimensional accuracy. This means that the tubing is manufactured to very precise specifications, ensuring that it has consistent thickness, diameter, and wall thickness. This is important because it allows the tubing to be used in applications where precise measurements are critical.


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Mechanical tubing is also known for its high strength and durability. It is designed to withstand the stresses of mechanical applications, such as bending, twisting, and compression. This makes it an ideal choice for applications where the tubing will be subjected to high levels of stress or strain.

There are many different types of mechanical tubing available, each with its own unique properties and characteristics. Some of the most common types of mechanical tubing include seamless tubing, welded tubing, and DOM (Drawn Over Mandrel) tubing. Seamless tubing is made from a single piece of metal and has no seams or welds, making it ideal for applications that require high strength and resistance to corrosion. Welded tubing is made by welding together two pieces of tubing, and is often used for applications where strength is important but corrosion resistance is less critical. DOM tubing is made by drawing a seamless steel tube through a mandrel, which creates a uniform thickness and diameter throughout the length of the tube. This type of tubing is often used for precision applications where dimensional accuracy is critical.

In conclusion, mechanical tubing is an essential component in many mechanical applications. It is designed to withstand the stresses of mechanical usage and is made with precision and accuracy to ensure that it has consistent thickness, diameter, and wall thickness. With its high strength and durability, mechanical tubing is an ideal choice for applications where the tubing will be subjected to high levels of stress or strain.