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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 relationship between I-beam and H-beam?-news-TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD-
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What is the relationship between I-beam and H-beam?
What is the relationship between I-beam and H-beam?

As the name suggests, I-beam is a kind of "I"-shaped steel. The inner surface of the upper and lower flanges has an inclination angle, generally, 1:6, which makes the flange thinner on the outside and thicker on the inside. Therefore, the cross-sectional properties of I-beams in the two main planes are very different, and it is difficult to give full play to the strength properties of steel in applications. Regardless of whether the I-beam is ordinary or light steel, due to the relatively high and narrow section, the moments of inertia of the two main sleeves of the section are very different. Therefore, it can only be directly used for bending members in the web plane or to form lattice load-bearing members. It is not applicable to members in axial compression or members bent perpendicular to the plane of the web.

 

H-beam is an economical profile. Due to the reasonable shape of the section, the manufacturer can tap the steel more efficiently and increase the cutting capacity. Different from the common I-shape, the wing embroidery of the H-beam is widened, and the inner and outer surfaces are usually parallel, which is convenient for the connection with high-strength bolts and other parts.

 

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H-beam is widely used in steel structure buildings. It is different from stainless steel I-beams.

 

1. The inner surface of the H-beam flange has no inclination, and the upper and lower surfaces are parallel.

 

2. The two outer sides of the H-beam are straight, and the inner side has no slope.

 

3. The cross-sectional performance of H-shaped steel is obviously better than that of traditional I-beam, channel steel, and angle steel.

 

4. H-shaped steel is an economical cross-section, with more optimized cross-section distribution and a more reasonable strength-to-weight ratio. It is so named because its cross-section is the same as the English letter "H". This makes the welding and splicing of H-beams easier than I-beams and has better mechanical properties per unit weight. Manufacturers can save a lot of stainless steel material and construction time.