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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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The storage process of seamless steel pipes-news-TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD-
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The storage process of seamless steel pipes
The storage process of seamless steel pipes

1. Avoid contact with humid environments: Seamless steel pipes should avoid contact with humid environments during storage because humid environments can easily cause corrosion, oxidation, and other problems in steel pipes, reducing their service life. Therefore, a dry, well-ventilated place should be chosen for storage.

2. Avoid contact with acid and alkali substances: Seamless steel pipes should avoid contact with acid and alkali substances during storage, especially corrosive substances such as strong acids and alkalis. This is because the chemical reaction between acid and alkali substances and the surface of the steel pipe will cause corrosion and damage to the surface of the steel pipe.

3. Pay attention to prevent collisions: During the storage process, pay attention to avoid collisions between seamless steel pipes and hard objects, especially during handling, stacking, loading and unloading, etc. Collisions will cause problems such as deformation, scratches, and ruptures of steel pipes, affecting their quality and effectiveness.


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4. Stack properly to prevent tilting: Seamless steel pipes should be stacked smoothly and evenly to avoid tilting and instability. When stacking, avoid high piles and exceeding the specified weight to avoid distortion and deformation caused by excessive pressure.

5. Regular inspection and cleaning: Regular inspection and cleaning of seamless steel pipes is necessary. Check for surface corrosion, scratches, and other damage, as well as for foreign matter clogging and other problems. Promptly clean dust, oil, and other impurities on the surface of the steel pipe to keep its surface clean and smooth.

6. Reasonable use of packaging materials: During storage, choose appropriate packaging materials to protect seamless steel pipes. Use moisture-proof, shock-proof, and dust-proof packaging materials, such as plastic film, foam plastic, etc., to reduce the impact of the external environment on the steel pipe.

7. Control the storage time: The storage time of seamless steel pipes should not be too long, and try to control it within the specified service period. Long-term storage will gradually lose the strength and stability of steel pipes, reducing their service life and quality.

8. Avoid direct sunlight: Seamless steel pipes should avoid direct sunlight during storage. Sunlight will cause the surface temperature of the steel pipe to rise and accelerate the oxidation reaction, thus damaging the quality and appearance of the steel pipe.

To sum up, the storage of seamless steel pipes needs to be kept dry and moisture-proof, avoid contact with acid and alkali substances, collision and tilt, regular inspection and cleaning, reasonable use of packaging materials, control of storage time, etc. Through reasonable storage measures, the quality and performance of seamless steel pipes can be effectively protected and their service life extended.