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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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EN10219 S355J2H LSAW Pipe supplier Asian-LSAW Steel pipe-TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD-
LSAW Steel pipe

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EN10219 S355J2H LSAW Pipe supplier Asian
EN10219 S355J2H LSAW Pipe supplier Asian
EN10219 S355J2H LSAW Pipe supplier Asian
EN10219 S355J2H LSAW Pipe supplier Asian
EN10219 S355J2H LSAW Pipe supplier Asian

Outer Diameter: 5mm-630mm
Thickness: 0.25mm-75mm

Length: 6-12m

Product details:

Product name

EN10219 S355J2H LSAW Pipe Supplier Asian

Material

Q195-A~Q275-A Q195B~Q275B 10# ~75# 16Mn, 5MnV, 09MnV 40Cr,

30CrMnSi,45Mn2,40MnB, ASTM A53 A36, A106,API 5L A106 Gr.B etc

Surface

Coated/galvanized/black

Technique

Hot rolled/cold rolled /cold drawn /seamless/erw

Dimension

Outer Diameter: 5mm-630mm 

Thickness: 0.25mm-75mm

Application

Oil/gas pipe, aerospace use, machine parts, furnace, geological exploration, acid resistance, bearing

Surface

Coated /galvanized /black


EN10219 S355J2H LSAW Pipe supplier Asian2.jpg


The requirements of S355J2H:

1: Brand representation method 

The steel brand consists of three parts: the Chinese phonetic letter representing the yield strength, the yield strength value, and the quality grade symbol, for example:

S355J2H. Among them: the steel starting with S is structural steel, 355—yield strength value, unit MPa; and the steel starting with S is carbon steel, so you only need to find a domestic brand carbon steel with a minimum yield strength of 355MPa at room temperature.

2: Implementation standard: EN10210 (cold-bent hollow steel for structure).

3: Chemical composition of S355J2H steel pipe:

C≤0.24; Mn≤1.60; Si≤0.55; P, S≤0.04; N≤0.009

4: Mechanical properties

Tensile strength: 450-630.

Elongation: ≥21.

Impact test: -20℃: ≥34.

5: Smelting method

Steel is smelted by converter or electric furnace, and refining is added outside the furnace when necessary.

6: Delivery status

Steel is delivered in hot rolling, controlled rolling, normalizing, normalizing + tempering, and thermomechanical rolling (TMCP) status.


Our factory:


TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD

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