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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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Circular Hollow Section

DescriptionStandards: BS, GB, BS EN 10297, BS EN10025, BS EN10217, BS EN10219, BS EN10296, GB/T 13793-1992, GB/T 14291-2006Grade: Q195-Q345, Q195, Q215, Q235Thickness: 0.8 - 18mm (SCH30, SCH40, STD, XS, SCH80, SCH160, XXS)Section shape: roundOuter diameter:1/2-18” (20-457mm)Application: structure pipeTechnique: ERWAlloy or not: non-alloyEnds: plain ends/threading ends/bevelledPacking: bundles/PVC cover bundleUsages: conveying gas, structural steel pipes purpose

Circular Hollow Section2

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Name: Rectangular hollow sectionsStandard: ASTM A500, JIS G3466, EN10219, DIN2240, BS1387, AS1163.Main steel tube grade: A.B.C, Q195, Q215, Q235, Q355Specification: 20*30*1.2mm to 400*600*40mm

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We have stocks of various grades of carbon steel coil and support third-party inspections. China-leading supplier of carbon steel coil, factory wholesale price is low.

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C channel steel ground solar panel mounting brackets with 20 years waranty, suitable for diferent terrains. Solar panelorientation can be both portrait and landscape. Less components, strong and easy to be instal.

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Industrial square steel pipe supplier

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Yuantai Derun Steel Pipe Manufacturing GroupProduct Specifications:Outer diameter: 1010-12001200mm, customization is acceptable.Wall thickness: 0.5-60mm, customization is acceptable.Length: 0.5-26.5M, can be cut according to demand.Tolerance: ±5% or as required.Minimum Order Quantity (MOQ): 2-5 ton

Square tubing supplier manufacturer

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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 ens

C purlin Malaysia Aisan

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ERW welded carbon steel pipe United Arab Emirates

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What isERW pipe? Can you distinguish between seamless pipe and welded pipe?1. Distinguish from the appearance:(1) First check whether there are welds and bulges on the inner and outer surfaces.If it is a steel pipe without surface coating, first check the inner and outer surfaces of the steel

Wholesale GI Pipe

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Product Specification：SpecificationOuter Diameter13-266.6mmThickness0.5-2.5mmLength1-12mTechniqueGi pipe pre-galvanized pipeor hot dipped galvanizedSteel gradesQ195, Q235, Q355ApplicationUsed For Structure, Accessorize And ConstructionPackagein the bundle, or wrapped with waterproof cloth as

EN10219 S355J2H LSAW Pipe supplier Asian

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EN10219 S355J2H LSAW Pipe supplier Asian

Product details:Product nameEN10219 S355J2H LSAW Pipe Supplier AsianMaterialQ195-A~Q275-A Q195B~Q275B 10# ~75# 16Mn, 5MnV, 09MnV 40Cr,30CrMnSi,45Mn2,40MnB, ASTM A53 A36, A106,API 5L A106 Gr.B etcSurfaceCoated/galvanized/blackTechniqueHot rolled/cold rolled /cold drawn /seamless/erwDimensionOuter Dia

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Product Specification:Size40-500mmWall thickness1.5-4mmHeight20-300mmTechniqueHot Rolled SteelSurfaceGalvanized & Black or as your requestTreatmentpolish;painted;galvanized;punchedMaterial GradeJIS, ASTM, GB, EN, etc.Packagein bundleDelivery Time20-25 days for productionLoading PortXingang

hot rolled coil Malaysia

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spiral pile

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ERW pipe supplier Asian

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LSAW steel pipe supplier

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Product Details:StandardAISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.MaterialSGCC/ CGCC/ DX51D+Z, etc.Thickness(mm)0.12-4.0mmWidth(mm)30mm-1500mmToleranceThickness: ±0.01 mmWidth: ±2 mmCoil internal diameter508-610mm or as per your requestZinc Coating30g - 275g / m2SpangleBig spangle, Regular spang

Square tube project

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zinc aluminum magnesium alloy coated steel-Zinc Aluminum Magnesium Coating Tube-TIANJIN YUANTAI DERUN PIPE MANUFACTURING GROUP CO., LTD-
Zinc Aluminum Magnesium Coating Tube

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Home >> products >> Zinc Aluminum Magnesium Coating Products >> Zinc Aluminum Magnesium Coating Tube

zinc aluminum magnesium alloy coated steel
zinc aluminum magnesium alloy coated steel
zinc aluminum magnesium alloy coated steel
zinc aluminum magnesium alloy coated steel
zinc aluminum magnesium alloy coated steel
Outer Diameter:

Square ZAM steel coating tube: 20×20-200×200mm
Rectangular ZAM steel coating tube: 20×30-100×200mm
Round ZAM steel coating pipe: 20-203mm
Thickness: 0.8-3.0mm
Length: 0.5-24M

Product Details:

Outer Diameter

SHS:20×20-200×200mm 

RHS:20×30-100×200mm

CHS:20-203mm

Thickness

0.8-3.0mm

Length

0.5-24M

Product material

51D 52D 53D 

300 340 400 420 440 490 570 

ASTM A 1046 

JIS G 3323-2012 

EN10324

Coating weight

ZM20~ZM400

MOQ

2-5 Tons

Payment method

TT/LC

Delivery time

7-35 days

Capacity

3 million tons/year

Port of shipment

Tianjin Xingang Port



Zinc alloy

Zinc alloy has a low melting point, good fluidity, and is easy to weld. According to the manufacturing process, it can be divided into cast zinc alloy and deformed zinc alloy. Cast zinc alloy has good fluidity and corrosion resistance, and is suitable for die-cast instruments, automobile parts casings, etc. Deformed zinc alloy has good plasticity and ductility and is mainly used as battery casings, printed boards, roof panels, and daily hardware. The output of cast alloys is much greater than that of deformed alloys. For structural parts of fast-moving consumer goods, deformed alloys are rarely used. Therefore, the following article will only focus on die-cast zinc alloy.

The density of zinc alloy is 6.3~6.7g/cm, the tensile strength σb is 280~440MPa, and the melting point is low. It melts at 385°C and is easy to die-cast.

Zinc alloy has the largest specific gravity among the four alloys described in this article, and has the best fluidity. It has good casting performance and can die-cast precision parts with complex shapes and thin walls, and the surface of the castings is smooth. Among the products I designed, the thinnest wall thickness of zinc alloy die-casting parts is only 0.4mm.

At room temperature, zinc alloy has good strength. It should be noted that zinc alloy is not suitable for use in high and low temperature (below 0°C) working environments. Zinc alloy has good mechanical properties at room temperature. However, the tensile strength at high temperatures and the impact properties at low temperatures decrease significantly. Zinc alloys have poor corrosion resistance. When the impurity elements lead, cadmium, and tin in the alloy components exceed the standards, the castings will age and deform. Zinc alloy die castings have aging effects and aging phenomena, that is, their strength naturally decreases and becomes brittle after a long time. This is why many people complain that when replacing zinc alloy faucets, brittle fracture often occurs, causing the threaded part of the faucet to remain in the water pipe and not be removed. 


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