Duplex tube

Duplex tube

A tube that comprises equal percentage composition of ferrite and austenite is an duplex tube. This is the only reason why they show excellent resistance to corrosion cracking.

Adding to this, they comprise higher chromium contents. Hence, in the modern world, they are one of the most widely used tubes; which meets several industrial standards.

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Duplex seamless tube suppliers in UAE

Duplex stainless steel tube specification

Duplex Tube Specification

Duplex stainless steel tubes
dimensions
Duplex tubing wall thickness duplex SS tubing
length
  • Duplex seamless tube OD:
    1mm up to 45mm (0.04″ to 1 5/8”)
  • Duplex welded, welded & drawn tubes OD:
    up to 38.1mm / 1 1/2″
  • Size: 6” to 24”
  • 0.25 mm up to 6.35mm (0.01″ to 0.250″)
  • Straight duplex tubing lengths : up to 14m (45ft)
  • Duplex steel coiled tubes: up to 10,000m (33,000 ft) with orbital joints

For cut to length please contact below listed Duplex Tube suppliers in UAE

Small tubes Duplex steel high pressure tubing DSS hydraulic tube
  • DSS Precision tubes
  • Small diameter duplex tubing
  • Duplex stainless tubing thin wall tubing
  • HPLC tubing – Up to 38.1 mm /1.5 inch
  • Size : 1.27 to 31.75 mm OD
  • wall thickness : 0.4445 to 5.5372 mm
  • Size : 3.175 to 25.4 mm
  • Wall thickness : 0.4 mm to 1.65 mm
Shapes American standard for OD and thickness Duplex stainless tubing manufacturing process
  • Hot finished seamless tube
  • Cold finished seamless tube
  • Welded
  • Welded & drawn
European standard Applications & uses Duplex steel coiled tubing manufacturing type
  • EN 10216-5 (seamless & welded tubing)
  • EN 10297-2 (seamless tubing)
  • EN 10217-7 (welded tubing)
  • EN 10296-2 (welded tubing)
  • EN 10312 (welded tubing)
  • Oil and gas refining
  • Marine environments
  • Pulp & paper manufacturing
  • Duplex seamless tube
  • Duplex stainless steel  welded tube
  • Duplex SS ERW tubing
  • Duplex steel EFW tube
duplex stainless steel tubing wall thickness Meet standards Duplex steel coiled tubing surface finish and treatments
  • 4 Inch
  • Schedule 5 / 5S
  • SCH 10 duplex stainless steel tubing (Most selling)
  • SCH 20
  • SCH 30
  • SCH 40 duplex steel tube (Most selling)
  • SCH 40S
  • SCH 80 / 80S
  • SCH 120
  • SCH 160
  • Standard (SCH STD)
  • Ex-Standard (XS)
  • Double Extra Strong (XSS)
  • ASME B36.19
  • ASME B36.19M
  • EN 10217-7
  • EN 10088-2
  • EN 10088-3
  • NSF 61
  • EN 10216 – 5
  • EN 10216 – 2
  • DIN 17456
  • DIN 17458
  • Cleaned
  • Passivated
  • Pickled
  • Precleaned
Duplex stainless tubing finish QC and duplex tubes
supporting documents
List of leading duplex round tubes manufacturers
  • Solution annealed duplex SS tube
  • Annealed & Pickled (A&P)
  • Mirror
  • Bright Annealed
  • 180 grit polished
  • 2B
  • No.4
  • 400 grit
  • BA polishing
  • Matt finish
  • 320 grit
  • 600 grit
  • Cold Drawn

Refer these details before buying duplex tube from traders, manufacturers, suppliers, stockist, stockholders, or importers

  • MTC EN 10204 type 3.1
  • duplex oval tubing material, schedule & size as per the work order
  • Verify quantity
  • Check duplex SS tubing dimensions
  • QC/ Inspection reports
  • duplex round tubes
    detailed inspection plan (appearance, integrity, packaging etc)
  • Labeling verification
  • Origin of material

 

Check ready stock of these make with above verified listed duplex tubing suppliers

  • ArcelorMittal, Luxembourg (Europe)
  • Outokumpu, Finland (Europe)
  • Aperam, Luxembourg (Europe)
  • ThyssenKrupp AG, Germany
  • Jindal steel pipe, India
  • Acerinox, Spain
  • Baosteel, China
  • POSCO, South Korea
  • Nippon Steel Corporation, Japan
  • Tubecon, Pretoria (South Africa)
  • MACSTEEL, Gauteng (South Africa)
  • Tata Steel, India
  • Tenaris, Luxembourg (Europe)
  • Sandvik, Sweden
  • SMM Oman
  • JFE, Japan
  • Nippon Steel & Sumitomo Metal Corporation, Japan
  • Jiangsu Shagang, China
  • AL JAZEERA, Oman
  • Sosta, Italy
  • Steelmor, Gauteng (South Africa)
  • Nippon Yakin Kogyo Co., Ltd., Japan
  • Bristol Metals, USA
Duplex stainless tubing value added services
  • Cutting
  • Threading
  • Beveling
  • Polishing

Find reputable duplex steel tube suppliers on pipingmaterial.ae. Get quotes from multiple DSS heat exchanger tube stockists in Middle East countries

Equivalent grades of duplex tubing

Duplex Tube Properties

Grades of duplex steel tube

Testing facilities offered by duplex tube manufacturers

  • NDT ultrasonic
  • Eddy current testing
  • Tension test
  • Hydrostatic testing
  • Flaring test (for seamless duplex tubing)
  • Flange test (for welded duplex tubing)
  • Hardness test
  • Radiographic examination
  • Reverse flattening test
  • 100% PMI tested
  • Electropolishing capabilities
  • Complete physical & chemical laboratory analysis

Sizes of duplex steel seamless coiled tubing

Tubing Wall Thickness Outside Diameter
Welded .020″ to .049″ .125″ to .750″
Welded .020″ to .049″ .125″ to .750″

Sizes of duplex steel welded coiled tubing

Tubing Wall Thickness Outside Diameter
Seamless 1.5 milimeter 8 milimeter
Seamless 1 milimeter 10 milimeter
Seamless 1.5 milimeter 10 milimeter
Seamless 1 milimeter 12 milimeter
Seamless 1.5 milimeter 12 milimeter

Duplex tubing types and forms

Bright annealed duplex tubing

Bright annealed duplex tubing

Solution annealed duplex tubing

Solution annealed duplex tubing

Duplex seamless tubes

Duplex seamless tubes

Welded duplex stainless tubing

Welded duplex stainless tubing

Duplex steel hydraulic tubing

Duplex steel hydraulic tubing

DSS instrumentation tubing

DSS instrumentation tubing

Duplex coiled tubing

Duplex coiled tubing

DSS sanitary tubing

DSS sanitary tubing

Duplex stainless steel mechanical tubing

Duplex stainless steel mechanical tubing

Electropolished duplex tubing

Electropolished duplex tubing

Duplex steel square tubing

Duplex steel square tubing

Round duplex stainless tubing

Round duplex stainless tubing

DSS rectangular tubing

DSS rectangular tubing

If you are looking for a good quality and top notch duplex seamless tube, highly advisable that you contact the suppliers of pipingmaterial.ae; where:

Reasonable pricing is quoted. So, customers pay only for their needs and standards.

These suppliers are listed and verified. So, customer confidentiality and product genuineness is not affected.

Looking for specific sizing of the seamless tube, the contact details of each suppliers are also open for free. So, customers can contact and place their necessary demands to them.

Confused whether your product meets your daily standards? Suppliers also would help you with their personal suggestions.

For them, customer comfort and suitability are the primary factors. Hence, until today, they are one of the most prominent and leading duplex tube suppliers in UAE, covering wide range of industrial standards.

Both ID and OD refer to the diameter of duplex tubing.

But being centric around to the terms, ID refers to the internal diameter of the tube. Whereas, OD refers to the outer diameter of the tubing.

In most industrial standards, OD is one of the factors which are most commonly used to perform most of the measurements.

Duplex stainless steel tubes and DSS boiler tubes are known for very good stress corrosion cracking

With the presence of higher chromium contents, stainless steel duplex heat exchanger tube shows excellent resistance to corrosive environments.

Not only to general corrosions, but you would also see it resisting intergranular corrosions too. Adding to this, in environments comprising sulphide and chloride, excellent stress corrosion cracking resistance is shown.

Want to purchase DSS superheater tubes? Check the minimum order quantity with several GCC stockists of duplex tubing

duplex tube material offers simplicity in their welding, with the help of standard welding methods.

With that said, it shows good weldability. But very important aspect to be noted here is that duplex steel welded tube cannot be welded easily; as that of austenitic grades.

On the other hand, because they have low thermal expansion, it reduces residual stress and distortion; after welding process.

Purchase duplex stainless steel extruded tube and welded tube that complies with standards in a variety of sizes and custom lengths

With excellent strength and corrosion resistance properties, below are some ideal applications of DSS boiler tube:

  • Used for the purpose of processing of chemical.
  • Marine applications; where resistance to corrosion and durability are considered.
  • Refineries of oil and gas, thanks to their excellent strength characteristics and high level temperature tolerance.
  • dss superheater tubes used as an equipment in pollution control.