Zhejiang Matech Industry Company Limited

TEL: +86-571-28350111
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Hangzhou Matech Steel Company Limited
Tel: +86-571-28350111
Fax: +86-571-86693517
Email: sales@matech-steel.com
Add: Floor 10, Xixi Vally E-Building, Xihu District, Hangzhou, Zhejiang province, China
Welding Steel Pipes

Welding Steel Pipes

Most common Weld steel pipes Sunny Steel produce an extensive selection of welded steel pipe including ERW, HFI, EFW, LSAW, DSAW and UOE type carbon steel pipe along with their respective flanges and fittings. Electric Resistance Welded Pipe ERW pipes means Electric Resistance Welded Pipes. ·...

Most common Weld steel pipes

Sunny Steel produce an extensive selection of welded steel pipe including ERW, HFI, EFW, LSAW, DSAW and UOE type carbon steel pipe along with their respective flanges and fittings.

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Electric Resistance Welded Pipe

ERW pipes means Electric Resistance Welded Pipes.

· ERW pipe technical requirements 

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High Frequency Induction (HFI) Welded Pipe

In High Frequency Induction (HFI) Welded Pipe production process, hot rolled steel coils are fed with a high capacity accumulator in order to achieve continuous welding.

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Spiral submerged-arc welding pipes (SSAW)

Spiral submerged arc welding(SSAW) is its forward direction and forming tube centerline hose reel molding angle (adjustable), side molding edge welding and weld them into a spiral.

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Electric Fusion Welded Pipes (EFW)

The EFW pipe divison consists of a JCO forming press, helical / spiral mill, inside and outside welding system, heat treatment furnace and testing facilities.

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Longitudinally Submerged Arc Welded (LSAW)

LSAW (Longitudinally Submerged Arc Welded Steel pipes) in leaflets plate as raw material, the steel plate in the mold or molding machine pressure (volume)...

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Double Submerged Arc Welded (DSAW)

Double Submerged Arc Welded (DSAW) steel pipe is available in straight and spiral welded formats and used in a variety of applications.

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UOE (Uing and Oing forming) Pipes

UOE(Uing and Oing forming) is a method used for production of longitudinally welded large diameter pipes.

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J-ing, C-ing and O-ing pipes

The mill adopts continuous axis contorting J-C-O(J-ing, C-ing and O-ing)process with characteristics of high forming accuracy and efficiency as well as balanced distribution of forming stress.

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Anti-corrosion steel pipe

Anti-corrosion steel pipe is processed through the preservation process, which can effectively prevent or slow down the process in the transport and use of chemical or electrochemical corrosion reaction of steel pipe.

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Hot Dip Galvanized Steel Pipe

Hot-dip galvanizing (HDG), as referenced is the process of dipping fabricated steel into a kettle or vat of molten zinc.

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Special Welded Tubes

Stainless steel oval tube offered in grades 304 and 316 in a wide choice of sizes.

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Rectangular Hollow Sections

Rectangular steel tube comes in different sizes, specifications and wall thicknesses.

Weled steel pipe 图片36.pngspecification, Standard and identification 

Welded steel pipe (steel pipe manufactured with a weld) is a tubular product made out of flat plates, known as skelp, that are formed, bent and prepared for welding.

Electrical resistance welding

· Welded Pipe Manufacturing Processes 图片37.png

· the production process of welded steel pipe

· Spiral steel pipe classes and features

· Steel Pipe- the hot coil inspection

· The Purpose Guidance Of Welded Steel Pipe

· Pipe cutting

· Pipe connection

· Supplying ERW steel pipe & Tube

· ERW oil casing application and market analysis

· ERW pipe manufacturing process

· Why welding stee tubes

· Kind for welding pipe

· Spiral pipe welding joint

· API 5L Line Pipe ( API 5L / API 5L )

· ASTM A500 (ASME SA500)

· ASTM A53 Standard Specifications

· Large diameter steel pipe

· Schedule 80 black steel pipe

· What Is Black Steel Pipe?

· Equipment of LSAW and UOE

· Steel pipe welding

· Spiral pipe manufacturing method

· Spiral steel pipe welding area common defects

· Purpose of preheating pipe prior to welding 

· Anti rust process

· FBE (Fusion Bonded Epoxy) coating

· Anti corrosion Pipe Coating Specs

· Anti rust coating for oil pipelines

· Type of anti-corrosion steel pipe

· Anti-corrosion surface treatment process

· Anti-corrosion pipe Standard

· Between the anti-corrosion & insulation pipes

· Longitudinally Submerged Arc Welded Process Flow

· The Process For LSAW Steel Pipe

· The developing trend of LSAW steel pipe

· LSAW Production Size Range

· Difference between ERW and DSAW pipes

· Advantage of ERW pipe

· Difference between HFW and DSAW

· Pipe info chat for LSAW steel pipe

· LSAW steel pipe industry usage

· The LSAW steel pipe producing equipments

· Advantages of LSAW steel pipe

· Inspection & Test Plan for LSAW

· The technique process of LSAW steel pipe

· Pressure hydrostatic test for welded pipes

· Technical support for ERW , SSAW & LSAW stel pipe

· Welding advantages of double submerged arc welded straight seam steel pipe

· The determination methods of deviator for SSAW pipe

· SSAW steel pipe technological process

· Electrode for resistance welding

· EFW pipe vs SSAW pipe

· Spiral piling pipe

· the difference between ERW, SSAW, LSAW

· Difference between SSAW steel pipe and LSAW steel pipe

· SAW (Submerged Arc Welding) Steel Pipe

· SMAW welding(shielded metal arc welding)

· Weld cold crack

· Spiral double welding pipe process

· Spiral Submerged-arc Welded Quality Assurance

· Ultrasonic Test System for SSAW Pipe Weld Seam

· ASTM A252 standard specification

· what are the defects in pipe manufacturing

· ASTM A252-89 Welded and seamless steel pipe piles

· Disadvantage and defect of resistance welding

· Eqnuiry for ASTM A252 construction pipe

· Features of SSAW steel pipe production process

· Difference between ERW and SAW steel pipe

· ERW Pipe coating

· Knowledge of ERW line pipe

· ERW pipe weld joint

· SSAW pipes Tech process

· SSAW pipes Quality Assurance

· SSAW pipes success stories

· ERW pipe technical requirements 图片37.png

· Dimensional tolerance of erw steel pipe

· Spiral submerged arc welding

· Arc welding

· The manufacture of electric resistance welded pipe

· ERW Pipe Manufacturing Processes 图片37.png

· Electric resistance welding at a glance 图片37.png

· HFW steel pipe defects in production

· HFW influence on welding quality of steel pipe

· EFW pipe vs ERW pipe

· Fusion welded method of new polyethylene pipe

· Square tube properties

· Large-size square & rectangular pipe production process

· Rectangular/ Square hollow section manufacturing process图片37.png

· The cause of the deformation of rectangular tube welding

· How to improve rectangular pipe welding technology

· The cause of rectangular tube welding

· Identification of fake spiral steel pipe

· Advantages of spiral weld steel pipe 

· Application of square pipe

· RHS uses

· Large diameter square tube defects

· HSS (Hollow Structural Steel)

· Rectangular pipe uses

· What is Galvanized Steel Pipe?

· Advantage of galvanized spiral pipe welding process

· Anticorrosion performance of mild steel pipe

· Cold galvanized(galvanizing)

· Difference between galvanized pipe and seamless pipe

· Difference between plastic coated and galvanized pipe

· Difference between black and galvanized pipe

· Difference galvanized mild steel and galvanized iron

· Difference hot-dip galvanizing and cold galvanizing

· Defects of hot dip galvanized pipe

· Galvanized coating on pipe surface

· Zinc coating thickness

· Galvanized steel pipe production line

· Galvanized pipe corrosion principle

· Galvanized steel hardness

· Galvanized steel pipe welding technology

· Galvanized pipe process characteristics

· Galvanized connection technology applications

· Galvanized mild steel welded seam welding proces

· Disadvantages of Galvanized Steel pipe

· Hot-dip galvanized (galvanizing)

· How should paint galvanized steel pipe ?

· Hot galvanized plate surface defects

· The technical requirements of galvanized steel pipe

· Characteristics of thin-walled galvanized stainless steel tube

· Quality defects of galvanized layer

· JCOE molding process

· JCOE Pipe Manufacturing Processes

Please view the recommended welded steel pipes and tubes as below:

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Anti-corrosion steel pipe

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Pipe cement mortar lining

Cement mortar lining can ensure a safe and abundant water supply for your water customers for many years to come.

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Single-layer anti-corrosion epoxy powder pipe

It is nearly 30 years ago to develop a new type of coating, using electrostatic spray coating of epoxy powder coating, the first film.

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2PP/3PP Anti-corrosion pipe

Three-layer PE/PP coating is characterized by excellent corrosion-proof performance,insulatibity,relatively long service life and mechanical damage resistance.

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3PE steel pipe, 2PE Steel pipe

The 3PE Coating Steel Pipe enjoys good impact resistance, abrasive resistance, shock resistance, acid resistance, high quality and long service life.

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Pipe cement mortar lining

Cement mortar lining can ensure a safe and abundant water supply for your water customers for many years to come.

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IPN8710 Water pipe inner wall

High-density polyethylene jacket tube is widely used in oil pipelines, gas pipelines, urban heating pipes, water pipes, electricity and other corrosion engineering, product quality and service by the users of a good level.

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HDPE pipe

High-density polyethylene jacket tube is widely used in oil pipelines, gas pipelines, urban heating pipes, water pipes, electricity and other corrosion engineering, product quality and service by the users of a good level.

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Thick walled steel pipe

Thick walled steel pipe is the pipe diameter and wall thickness ratio of less than 20 steel pipe.

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Rectangular Hollow Sections

Rectangular steel tube comes in different sizes, specifications and wall thicknesses. Its uniformity makes it predictable to use and visually appealing.

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Square hollow section

Square steel tube comes in different sizes, specifications and wall thicknesses. Its uniformity makes it predictable to use and visually appealing.

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Oval pipe, Oval tubes

For the best quality Oval Tubes, we serve as one-stop destination in the international market.

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Stainless steel oval pipe

Stainless steel oval tube offered in grades 304 and 316 in a wide choice of sizes.

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ERW Galvanized Steel Pipe

Steel Pipes manufacturers and Exports huge range of ERW Galvanized Steel Tubes & Steel Pipes.

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Pre-galvanized steel pipe

We can produce and supply to you various Pre-galvanized steel pipes according to international standard.

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UOE pipes

UOE is a method used for production of longitudinally welded large diameter pipes.

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HFI Pipes

In High Frequency Welded (HFW) pipe production process, hot rolled steel coils are fed with a high capacity accumulator in order to achieve continuous welding.

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LSAW pipes

LSAW (Longitudinally Submerged Arc Welded Steel pipes) in leaflets plate as raw material, the steel plate in the mold or molding machine pressure (volume) into using double-sided submerged arc welding and flaring from production.

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JCOE pipes

The mill adopts continuous axis contorting J-C-O(J-ing, C-ing and O-ing)process with characteristics of high forming accuracy and efficiency as well as balanced distribution of forming stress.

· JCOE Pipe Manufacturing Processes

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SAW pipes

SAW is normally operated in the automatic or mechanized mode, however, semi-automatic (hand-held) SAW guns with pressurized or gravity flux feed delivery are available.

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EFW pipe

The EFW pipe divison consists of a JCO forming press, helical / spiral mill, inside and outside welding system, heat treatment furnace and testing facilities.

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DSAW pipes

Double Submerged Arc Welded (DSAW) steel pipe is available in straight and spiral welded formats and used in a variety of applications.

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SSAW ASTM A252 pipes

ASTM A252 standard covers nominal wall cylindrical steel pipe piles in which the steel cylinder acts as a permanent load-carrying member or as a shell to form cast-in-place concrete piles.

· ASTM A252-89 standard specification


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    Hangzhou Matech Steel Company Limited
    Tel: +86-571-28350111
    Fax: +86-571-86693517
    Email: sales@matech-steel.com
    Add: Floor 10, Xixi Vally E-Building, Xihu District, Hangzhou, Zhejiang province, China
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