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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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Pre-Galvanized Steel Pipe-pre-galvanized pipes-TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD-
pre-galvanized pipes

Home >> products >> Steel Pipe & Steel tube >> pre-galvanized pipes

Pre-Galvanized Steel Pipe
Pre-Galvanized Steel Pipe
Pre-Galvanized Steel Pipe
Pre-Galvanized Steel Pipe
Pre-Galvanized Steel Pipe

Wall thickness: 0.3-12mm

Length: according to customers' requests

Outer diameter: 15-219mm

Product Name

Hot Dip Galvanized Steel Pipe/Pre-Galvanized Steel Pipe

Wall Thickness

0.3mm-12mm

Length

5.5m, 5.8m, 6m, 11.8m, 12m, etc, other length is Available according to demands.

Outer diameter

15mm-219mm

Tolerance

Wall Thickness:±0.05MM Length:±6mm Outer Diameter:±0.3MM

Shape

Round, Square, Rectangle, Oval, etc.

Material

Q195-Q345, Gr.B-Gr.50, DIN-S235JR, JIS-SS400, JIS-SPHC, BS-040A10

Technique

Cold Rolled, Hot Rolled, ERW

Standard

ASTM, DIN, JIS, BV

Payment terms

T/T or L/C



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The difference between galvanized and hot-dip galvanized

1. Different principles

The principle of hot-dip galvanizing is to immerse steel components into a container containing a galvanizing solution to obtain a metal coating. And galvanizing is putting the processed ironware into the solution containing zinc salt after degreasing and pickling and then using the chemical principle to plate zinc on the steel parts through electrolytic equipment.

2. The required equipment is different

Galvanizing requires electrolytic equipment, while hot-dip galvanizing requires pickling equipment, a pumping bottom annealing furnace, or a bell annealing furnace.

3. Different performance and advantages

Galvanizing is environmentally friendly because there are no more toxic solvents and thinners used in it, which is conducive to protecting the environment. Hot-dip galvanizing is more durable, durable, and anti-corrosion, because its galvanized layer is mainly composed of a unique metal structure, so it is very durable.

4. Different applications

Galvanizing is mainly based on anti-corrosion coatings and is developed in the direction of protecting the environment. Hot-dip galvanizing is mainly because it has a very good anti-corrosion function, so it is widely used in power towers, railways, road protection, the light industry, etc.


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To ensure that each batch of goods is in good condition, our inspection department will thoroughly examine and test the products before delivery. Testing and certification are available upon request.