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

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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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Square tubing supplier manufacturer-Square and Rectangular Steel Tube-TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD-
Square and Rectangular Steel Tube

Home >> products >> Steel Pipe & Steel tube >> Square and Rectangular Steel Tube

Square tubing supplier manufacturer
Square tubing supplier manufacturer
Square tubing supplier manufacturer
Square tubing supplier manufacturer
Square tubing supplier manufacturer

Size: 20*20-500*500mm or as the requirement,

large size steel tube above 500*500 can be produced.

Thickness: 1.3-40mm or as the requirement

Length: 5.8m/6m/12m or as the requirement

How to make square tubing

The production process of square tubes and square tubes includes preparation, cutting and adjustment, bending and forming, welding and connection, surface treatment, and quality inspection. Each stage requires professional equipment and tools, and control parameters to ensure product quality and stability. As a common metal product, square tubes have been widely used in construction, machinery, transportation, aerospace, and other fields.

The production process mainly includes the following steps:

1. Preparation stage:

In the preparation stage, the raw materials of square tubes or rectangular tubes need to be inspected and controlled to ensure that the quality of the raw materials meets the production requirements. At the same time, according to production needs, various production equipment and tools are prepared, and necessary adjustments and inspections are made to ensure the normal operation of the equipment.

2. Cutting and adjustment stage:

The cutting and adjustment stage is a very critical step in the production of square tubes and square tubes. According to production specifications and requirements, professional cutting equipment and tools are used to accurately cut the raw materials of square tubes or rectangular tubes to ensure that the length and shape of each section of raw materials meet the requirements. At the same time, necessary adjustments and corrections are made to the cut materials to ensure the normal progress of subsequent processing.

3. Bending and forming stage:

In the bending and forming stage, professional bending equipment and tools are needed to accurately bend and form the square tube or rectangular tube according to production requirements. In the process of bending and forming, it is necessary to master the quality of the material, bending radius, bending speed, and other parameters to avoid cracks, deformation, and other problems.

4. Welding and connection stage:

The connection of square tubes and square tubes is usually completed by welding. In the welding and connection stage, professional welding equipment and tools are needed to select appropriate welding methods and technical parameters according to different materials and production requirements to ensure the quality and stability of welding. At the same time, necessary inspection and control are required to avoid welding defects and errors.

5. Surface treatment stage: 

The surface treatment stage is a very important step in the production of square tubes and rectangular tubes. In the surface treatment stage, it is necessary to select appropriate surface treatment methods and technical parameters according to different requirements, such as spraying, electroplating, baking paint, etc. At the same time, necessary inspection and control are required to ensure the quality and stability of surface treatment.

6. Quality inspection and control stage: 

The quality inspection and control stage is an indispensable step in the production of square tubes and rectangular tubes. In the quality inspection and control stage, comprehensive inspection and control are required to ensure that the quality and stability of the final product meet the requirements. At the same time, the production process and technical parameters need to be adjusted and controlled according to the inspection results to improve production efficiency and product quality.


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Product Specification:

Size

20*20-500*500mm or as the requirement, large size steel tube above 500*500 can be produced.

Thickness

1.3-40mm or as the requirement

Length

5.8m/6m/12m or as the requirement 

Steel grades

ASTM A500, ASTM A501, BS 1387, EN10219, EN10210, ASTM A53, JIS G3466,

GB/T9711, GB/T3094, GB/T3091, GB/T6728

Application

Steel Frame Glass Curtain Wall

Heavy steel structure

Aerospace engineering

High-speed rail

Shipbuilding

Seamless steel pipe for machinery

Seamless steel pipes for automobiles and high-speed trains

Seamless steel pipes for the chemical industry and boilers

Seamless steel pipe for bridges

Package

in the bundle, or wrapped with waterproof cloth as per the customers' requirement

Delivery Time

7-30 days

Loading Port

Xingang, Tianjin, China

MOQ

10 tons

1. All the pipes are high-frequency welded.

2. Both inner and outer welded stabs can be removed.

3. Pipe can be necked down and punched holes.

4. Supplying BV or SGS Inspection if the client needs it. 

Our factory: