SQUARE AND RECTANGULAR HWS ENTERPRISE
ENTERS INTO CHINA TOP 500
MANUFACTURING ENTERPRISE

about us

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.

Learn More >>
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.

news

EXCEED EXCELLENT INNOVATION

Integrity

Rely on faith and trust to be achievement, make friends and be on the way all the time.

Innovation

Be low key but ambitious, look forward to the Era of Smart Production with intelligence, information and precision

Development

Create a century brand by the way of forging ahead and pursuing excellence

Dedication

Realize our vision and task, be valuable and feedback.

How to choose scaffolding steel pipe?-news-TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD-
news

Home >> news

How to choose scaffolding steel pipe?
How to choose scaffolding steel pipe?

Scaffolding is a temporary support structure commonly used on construction sites to erect and support workers, materials, and equipment. The steel pipe is the most important component of the scaffolding as it bears the main load. To ensure the safety and stability of scaffolding, steel pipes need to meet a series of requirements and standards.


QQ图片20230714110732.jpg


1. Steel pipes need to meet strength and stability requirements. According to national and regional standards, the material and strength of steel pipes need to meet certain standards, such as Q235B, Q345B, etc. In addition, the diameter, wall thickness, and length of the steel pipe also need to meet the specified dimensional requirements to ensure its load-bearing capacity and stability.

2. Steel pipes need to have good corrosion resistance. Since scaffolding is often exposed to outdoor environments, steel pipes need to be able to resist various weather conditions and chemicals, such as rain, sunlight, acid rain, etc. Common protection measures include hot-dip galvanizing, plastic spraying, etc.

3. Steel pipes also need to have good connection properties. Steel pipes in scaffolding systems are usually assembled through threaded connections or fastener connections. Therefore, the connection port of the steel pipe needs to have good accuracy and stability to ensure that the entire scaffolding system is firmly connected.

4. Steel pipes also need to pass qualified quality testing and certification. Relevant countries and regions usually have specialized agencies to conduct quality testing and certification to ensure that the quality of steel pipes meets standard requirements. Common certification standards include ISO 9001 quality management system certification, ISO 14001 environmental management system certification, etc.

5. Steel pipes need to be used and maintained correctly. The construction and use of scaffolding need to follow relevant safety operating procedures, such as correct construction of scaffolding, reasonable placement of loads, regular inspection and maintenance, etc.