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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 common production processes of square and rectangular tube manufacturers?-news-TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD-
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What are the common production processes of square and rectangular tube manufacturers?
What are the common production processes of square and rectangular tube manufacturers?

Square and rectangular tubes are a common building material, and their production requires multiple process steps. This article will introduce the processes commonly used by square and rectangular pipe manufacturers and discuss their characteristics and applications.

1. Square and rectangular tube manufacturers usually prepare raw materials. Common raw materials for square and rectangular tubes include steel plates and steel strips. These raw materials undergo cutting, trimming and other processes to ensure that their size and flatness meet the requirements.


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2. Square and rectangular tube manufacturers will perform bending and rolling processes. These processes can make square and rectangular tubes into different shapes and sizes as needed. By controlling the bending angle and rolling radius, square and rectangular tube manufacturers can meet the needs of different customers.

3. The square and rectangular pipe manufacturer will perform the welding process. Welding is a very critical step in the production process of square and rectangular tubes. Common welding methods include electric welding and gas welding. Through the welding process, the various parts of the square and rectangular tube can be firmly connected to ensure the stability and strength of its structure.

4. Square and rectangular pipe manufacturers will also perform surface treatment processes. The surface treatment of square and rectangular pipes can improve their anti-corrosion capabilities and aesthetics. Common surface treatment methods include hot-dip galvanizing, spraying, and electroplating. These treatments can effectively extend the service life of square and rectangular pipes and make them more attractive.

5. Square and rectangular tube manufacturers will conduct quality inspection and packaging processes. Quality inspection can ensure that the quality of square and rectangular pipes meets standard requirements. Common quality inspection methods include dimensional inspection, mechanical property testing, and surface quality inspection. During the packaging process, manufacturers will adopt appropriate packaging materials and methods to protect the integrity and safety of square and rectangular pipes.

To sum up, the common production processes of square and rectangular tube manufacturers include raw material preparation, bending and rolling, welding, surface treatment, quality inspection, and packaging. The reasonable application of these processes can ensure the quality and performance of square and rectangular tubes and meet customer needs.