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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 steel piles?-news-TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD-
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What are steel piles?
What are steel piles?

Steel piles can be rolled sections, fabricated shapes, or sheet piles. Two or more sheet pile sections can be connected in a box shape and driven as one pile. The primary benefit of using a steel pile is its load-carrying capacity. A steel pile can support up to 100 tons. Steel piles are most commonly used for large structure foundations with heavy loads.


Steel Piles Have a High Bearing Capacity: 

Steel piles have a high bearing capacity.

Steel piles can be driven through tough layers or boulders.

The volume of soil displaced during steel pile driving is less.

Steel piles can withstand the abrasive treatment.


Steel Piles' Disadvantages:

Steel piles are prone to corrosion and electrolysis damage.

Unless the bearing stratum can develop a large pile capacity, steel piles are relatively expensive.

Steel piles perform less well than friction piles.


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Steel Piles Corrosion:

Corrosion is a major issue with steel piles. The following are a few methods for protecting a steel pile from corrosion:

Thickness Increase

Most codes require that the pile section have a certain extra thickness (usually about 1/16 inch) in excess of the sectional area required for strength. This can be accomplished by subtracting 1/16 inch from the actual metal thickness when calculating pile capacity or by splicing another piece of steel to the pile length where corrosive action is expected.

Corrosive soil removal

Noncorrosive soils may be used to replace organic soils, cinder fill, unburned carbon, or industrial waste near the ground surface. Only when such soils are at shallow depths is this method cost-effective.

Encasement in concrete

By encasing the piles near the ground surface, where moisture and oxygen are abundant, the piles can be effectively protected. A large-scale concrete encasement is an expensive method.