What is duplex steel welded tube, and what are its key properties?

A duplex steel welded tube is a type of tubular product fabricated from duplex stainless steel through the welding process. Duplex stainless steel is a unique alloy that combines the desirable characteristics of austenitic and ferritic stainless steel. One of the key properties of duplex steel welded tubes is their exceptional strength, which allows them to withstand high pressures and heavy loads. Additionally, these tubes exhibit excellent resistance to corrosion, including resistance to stress corrosion cracking, making them suitable for various challenging environments.

Duplex steel welded tubes also offer good weldability and formability, enabling easier fabrication and installation. Moreover, they demonstrate enhanced toughness and durability, ensuring longevity in demanding applications. With their remarkable properties, duplex steel welded tubes find applications in diverse industries such as oil and gas, chemical processing, desalination, and offshore structures, where their combination of strength, corrosion resistance, and reliability is highly valued.

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Duplex Steel Welded Tube Sizes, Duplex Welded Tube, Duplex Welded Tubing, Duplex Stainless Steel Welded Tube, Duplex Steel Welded Tube Supplier In Mumbai, India.

How does the manufacturing process of duplex steel welded tubes differ from other types of steel tubes?

The manufacturing process of duplex steel welded tubes differs from other types of steel tubes, primarily in the welding method used. Duplex steel welded tubes are typically produced using two common techniques: automatic tungsten inert gas (TIG) welding and the automatic plasma welding processes. These methods allow precise control over the welding parameters, ensuring a high-quality and consistent weld. Additionally, duplex stainless steel requires careful attention to heat input during welding to maintain the desired microstructure and material properties.

Specialized equipment and expertise are often required to handle the specific challenges associated with duplex steel welding, such as maintaining proper interpass temperatures and avoiding excessive heat-affected zone (HAZ) formation. Overall, the manufacturing process of duplex steel welded tubes involves specific considerations and techniques tailored to the unique characteristics of duplex stainless steel to ensure the production of durable and reliable tubular products.

Specification Of Duplex Steel Welded Tube

Tube Standard ASTM A789 / ASME SA789
Welded Tube Sizes 1 / 2" NB - 24" NB
Tube Outside Diameter 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
Tube Manufacturing Process Welded
Duplex Steel Tube Schedule SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Tube Length Single Random, Double Random, Standard & Cut length
Tube End Types Plain Ends (PE), Threaded Ends (TE), Bevelled Ends (BW), Grooved Mechanical Joints or Grooved Ends, TBE (Treaded Both Ends)
Delivery Condition Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Outside Finish 2B, No.4, No.1, No.8 Mirror Finish for Duplex Steel Tubes, Finish as per customer Requirements
Value Added Services Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing

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Types Of Duplex Steel Welded Tubes

Duplex Steel Welded Round Tube

Duplex Steel Welded Round Tube

Duplex Steel Round Welded Tube Stockist, Duplex Steel Welded Round Tube Supplier,Duplex steel Welded Round Tube.

Duplex Steel Welded Square Tube

Duplex Steel Welded Square Tube

Duplex Steel Square Welded Tube Stockist, Duplex Steel Welded Square Tube, Duplex Steel Welded Square Tube Supplier.

Duplex Steel Welded Rectangular Tube

Duplex Steel Welded Rectangular Tube

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Duplex Steel Polished Welded Tube

Duplex Steel Polished Welded Tube

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Widest Range of Duplex Steel Welded Tubes in Mumbai, India.

  • Widest RangeDuplex Steel Welded Tubing
  • Widest RangeFerritic/Austenitic Duplex Steel Polish Welded Tube
  • Widest RangeSchedule 40 Duplex Steel Welded Tube
  • Widest RangeSchedule 80 Duplex Steel Welded Tube
  • Widest RangeSchedule 160 Duplex Steel Welded Tube
  • Widest RangeSchedule XXS Duplex Steel Welded Tube
  • Widest RangeSchedule XS Duplex Steel Welded Tube
  • Widest RangeSchedule 5 Duplex Steel Welded Tube
  • Widest RangeSchedule 10 Duplex Steel Welded Tube
  • Widest RangeASTM A789 Duplex Steel Welded Tube
  • Widest RangeASME SA789 Duplex Steel Welded Tube
  • Widest RangeDSS Welded Round Tube
  • Widest RangeDuplex Stainless Steel Welded Tube
  • Widest RangeDuplex Steel Welded Tubing Suppliers
  • Widest RangePolished Duplex Steel Welded Tubing
  • Widest RangeASTM A789 Duplex Steel Welded Tube
  • Widest RangeASTM A789 Duplex Steel Welded Tube
  • Widest RangeASME SA789 Duplex Steel Welded Tube

Check Other Tubes Types In Detail

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Duplex Steel Welded Tubes Price

Product Price
Duplex Steel Square Welded Tube Price $1,082.00 - $3,489.00/ Ton
ASTM A789 Duplex Steel Welded Tube Price List $700.00 - $1,900.00/ Ton
DSS Welded Tube Price Per Kg $4 - 23 / Kg
DSS Welded Tube Price List US $ 12 - 45 / Pound
Duplex Steel Welded Tube Price In India $698.00 - $1,480.00/ Ton
Duplex Stainless Steel Welded Tube Price US $ 1000 - 3000 / Ton
Duplex Stainless Steel Welded Tube Price US $ 1100 - 2000 / Ton
Duplex Steel Welded Tube Price US $ 1400 - 12000 / Ton
Ferritic/Austenitic Duplex Steel Welded Tube Price Per Piece $4.00 - $100.00/ Piece

For Quatation & Questions Related To Duplex Steel Welded Tubes

Avoid those problems that occur with low-quality Duplex steel welded tubes by getting high-quality Duplex steel welded tubes at competitive prices from us. Give us a call or send us an email to discuss how we can help you build your business. Working with such an esteemed client as you will make us happy.

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Duplex Steel Welded Tube Manufacturing Process

Preparing The Sheets

Before being selected to roll, the stainless steel sheets go through a number of inspections. Trimming them around the edges is the first step in preparing them.

Rolling Through Rollers

The desired size is then achieved by running the sheets through many rollers. You can see the sheets evolving into tubular shapes in this stage.

Rollers Through The Fitted Welding Machine

The tubular shape must pass through a customised welding equipment in this step. You get precisely rolled tubes by removing the weld beads and scraps from inside these tubular shapes.

Welding Process

The grade and application requirements have an impact on tube welding and forming. For the manufacturing of tiny diameter tubes, we employ TIG welding. Steel sheets are coiled and welded inside of a welding machine. The steel sheets are shaped into a coil before entering the machine. The seam between these coils is then welded to create a tube.

Electric Resistance Welding (ERW) Process

Tube is made using the Electric Resistance Welding (ERW) technique, which involves cold-forming a flat sheet of steel into a cylindrical shape. The steel is then heated by applying current to either of the cylinder's edges, forcing the edges to bond together firmly without the use of welding filler material.

Submerged Arc Welding (SAW) Process

An arc is created between a workpiece and a continuously fed bare wire electrode during the Submerged Arc Welding (SAW) procedure. Additionally, flux is used to create slag, produce protective gases, and provide alloying materials to the weld pool. Gas shielding is not required.

Electric Flash Welding Process

A steel sheet being transformed into a cylinder using the electric flash welding process. The edges are heated until they become semi-molten in this instance, and then they are pressed together until molten steel is squeezed out of the junction and forms a bead.

Annealing

Metal is heated above the point of re-crystallization and cooled to room temperature during the annealing process. The molecular bonds in metal tighten when it is shaped, making it rigid. The metal is put through an annealing process to regain its ductility.

Sinking Process

Tube sinking is a drawing technique that reduces the diameter of tubes. In this drawing technique, a tube is run through a die without the need of a mandrel. Good inner surface quality is not ensured when using a mandrel. The die angel determines the integrity of the outer surface. The die being used produces a uniform surface. A tube can be significantly smaller than it was originally. When cost is a factor, tube sinking is ideal.

Inspection and Testing

Before sending our items to our consumers, we conduct inspection procedures to verify their integrity.


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Testing & Inspection of Duplex Steel Welded Tubes

Testing (Destructive, Non Destructive)

Intergranular Corrosion (IGC) Test Impact Test
Macro Test Dye Penetrant Test (DP Test)
Flaring Test Bend Test
Positive Material Identification – PMI Testing Hydrostatic Test
Pitting Resistance Test Eddy Current Testing
Micro Test Radiography Test
Chemical Analysis – Spectro Analysis Hydrogen-Induced Cracking (HIC) Test
Mechanical Testing Such as Tensile, Elongation, Reduction of Area Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
Hardness Test Ultra Sonic Test (UT)
Flattening Test

Duplex Steel Welded Tube Sizes in MM

BWGBWGBWGBWGBWGBWGBWGBWG
2522201816141210
WT mmWT mmWT mmWT
mm
WT mmWT mmWT mmWT
mm
Outside DiameterOutside Diameter0.5080.7110.8891.2451.6512.1082.7693.404
mminch kgs/mkgs/mkgs/mkgs/mkgs/mkgs/mkgs/m
6.351/40.0810.1090.1330.1740.212   
9.53 3/80.1260.1570.1930.2570.3560.429  
12.7 1/2 0.2140.2630.3560.4570.6120.754 
15.88 5/8 0.2710.3340.4550.5880.7960.995 
19.05 3/4 0.3270.4050.5530.7290.8951.236 
25.41    0.440.5460.750.9811.2341.5742.05
31.751 1/4 0.5540.6880.9471.2441.5742.0142.641
38.11 1/2 0.6670.8321.1441.5141.9042.4543.233
44.51 3/4   1.3421.7742.2442.8943.5
50.82      1.5492.0342.5743.3344.03
63.52 1/2   1.9492.5543.2444.2145.13
76.23      2.3453.0843.9145.0946.19
88.93 1/2   2.7293.6094.5845.9747.27
101.64       4.1345.2546.8548.35
114.34 1/2    4.6545.9247.7349.43

Feel Proud To Export Our High Quality Duplex steel Welded Tubes World Wide.

We have exported and supplied our Duplex Steel Welded Tubes to solve tubing related problems of our prestigious domestic and worldwide clients. We appreciate your business and the confidence you have placed in us.

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Supply Cities Of Duplex Steel Welded Tubes

The cities listed here are where we have supplied our grade Duplex steel welded tubes in bulk or small orders. Cities from metropolitan to rural areas we can provide Duplex steel welded tubes to satisfy the needs of our clients.

Bengaluru, Bangkok, Surat, Istanbul, Melbourne, Jamshedpur, Gurgaon, Kanpur, Thane, Hanoi, Lahore, La Victoria, Ahvaz, Thiruvananthapuram, Busan, Sydney, Muscat, New Delhi, Secunderabad, Geoje-si, Ankara, Colombo, Toronto, London, Mumbai, Ulsan, Doha, Kuala Lumpur, Dammam, Edmonton, Atyrau, Mumbai, Ranchi, Manama, Navi Mumbai, Kuwait City, Caracas, New York, Aberdeen, Noida, Brisbane, Ho Chi Minh City, Jeddah, Petaling Jaya, Ernakulam, Nagpur, Howrah, Santiago, Gimhae-si, Seoul, Bhopal, Visakhapatnam, Rajkot, Ludhiana, Sharjah, Nashik, Algiers, Jakarta, Dallas, Jaipur, Hyderabad, Karachi, Courbevoie, Indore, Granada, Kolkata, Hong Kong, Cairo, Coimbatore, Chennai, Houston, Dubai, Rio de Janeiro, Los Angeles, Baroda, Port-of-Spain, Chiyoda, Montreal, Singapore, Al Khobar, Haryana, Chandigarh, Abu Dhabi, Mexico City, Moscow, Calgary, Perth, Faridabad, Milan, Vadodara, Lagos, Madrid, Pune, Tehran, Bogota, Al Jubail, Riyadh, Ahmedabad, Pimpri-Chinchwad, Vung Tau.

Documents Provided at the time of Domestic Sales or Export of Duplex Steel Welded Tubes

Letter of Guarantee Material Test Certificates
ROHS Certificate Certificate of Compliance/Conformity
Certificate of Origin Raw Material Test Reports
Packing List Quality Assurance Plan (QAP)
Commercial Invoice Heat Treatment Charts
Fumigation Certificates NABL approved Laboratory Test Reports

Application Industries We Supply Duplex Steel Welded Tubes

Duplex Steel Welded Tubes For Rail Transport, Duplex Steel Welded Tubes For Agriculture, Duplex Steel Welded Tubes For Factory, Duplex Stainless Steel Welded Tubes For Energy, Duplex Steel Welded Tubes For Real Estate, Duplex Steel Welded Tubes For Textile Industry, Duplex Steel Welded Tubes For Engineering, Duplex Steel Welded Tubes For Technology, Duplex Steel Welded Tubes For Waste, Duplex Steel Welded Tubes For Mining, Duplex Steel Welded Tubes For Pharmaceutical Industry, Duplex Steel Welded Tubes For Transport, Duplex Steel Welded Tubes For Food Industry, Duplex Steel Welded Tubes For Tertiary Sector, Duplex Welded Tubes For Construction, Duplex Welded Tubes For Electronics, Duplex Steel Welded Tubes For Health care, Duplex Steel Welded Tubes For Pulp and Paper Industry, Duplex Welded Tubes For Manufacturing, Duplex Steel Welded Tubes For Chemical Industry, Duplex Stainless Steel Welded Tubes For Production.

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