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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 the Meaning of SCH 40 in A Pipe?-news-TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD-
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What Is the Meaning of SCH 40 in A Pipe?
What Is the Meaning of SCH 40 in A Pipe?

The term "SCH 40" is commonly used in the context of pipes, particularly in the construction industry. It refers to a specific type of pipe schedule or thickness that is used in the design and installation of various piping systems.

In simple terms, a pipe schedule is a way of specifying the wall thickness of a pipe based on its nominal size and its intended use. The wall thickness is important because it affects the pipe's strength and durability, as well as its ability to withstand pressure and other environmental factors.


SCH 40 Round pipe.jpg


An "SCH 40" pipe schedule indicates that the wall thickness of the pipe is relatively thick, which makes it suitable for a wide range of applications. Specifically, it means that the pipe has a wall thickness of 0.154 inches (3.91 mm) for pipes with a nominal size of 1 inch (25.4 mm) and larger.

Sch 40 pipes are commonly used in a variety of industrial, commercial, and residential applications, including water supply and distribution, heating and cooling systems, gas pipelines, and more. They are also used in the construction of buildings and infrastructure, including bridges, tunnels, and highways.

Sch 40 pipes are preferred over thinner-walled pipes in certain applications because they offer greater strength and durability, which is important when dealing with high pressures or harsh environmental conditions. However, they can also be more expensive and harder to work with, particularly when it comes to cutting, bending, or joining them.