• Metallica is one of the biggest stainless steel Duplex 2205 product supplier and manufacturer in India, with over 250 customers in India and overseas. We are bulk buyers and exporters of stainless steel Duplex 2205 pipes, fittings and flanges from our factory in India, and are able to give you the best price and quality just in time.
  • We stock all major forms of stainless steel Duplex 2205 grade such as SS Duplex 2205 pipe and tube, SS Duplex 2205 forged flange and fittings, SS Duplex 2205 butt-welding pipe fittings, SS Duplex 2205 elbow, SS Duplex 2205 tee, SS Duplex 2205 reducer, SS Duplex 2205 stub end, gaskets, fasteners, valves, sanitary fittings etc. Being one of the largest volume stainless steel Duplex 2205 supplier in Mumbai, we can guarantee you the lowest prices.
  • At Metallica Metals, we believe in selling in volume and increasing our customer base across the globe, enabling us to work on low margins. We have an extensive trader network across India and the Middle East, who buy from us on a regular basis.
  • In addition to traders, we have many EPC contractors, companies and end users in various industries as our customers for stainless steel. We are leading stainless steel Duplex 2205 suppliers for various applications ranging from low/medium/high pressure or temperatures.
  • SS Duplex 2205 supplier in Mumbai, UNS S31803 / S32205 material Stockist, 1.4462 material dealers in India, Stainless Steel Duplex 2205 Products suppliers, Stainless Steel Duplex 2205 price per kg in India
Stainless Steel Duplex 2205 Supplier, Manufacturer, Wholesaler in India and Overseas
  • Largest Stainless Steel Duplex 2205 Products Supplier in India, with over 300 Tons in Stock

  • We Sell Stainless Steel Duplex 2205 Products in Price Range of Rs. 200/KG to Rs. 600/KG.

  • Our Annual Sales Volume for Stainless Steel Duplex 2205 Products is Over 1500 tons.

  • Stainless Steel Duplex 2205 Pipes, are Sold with Complete Range of Related Pipe Fittings.

  • On-Time Delivery with Quality Assurance and Price Guarantee for Stainless Steel Duplex 2205.

  • Email Us on sales@metallicametals.com or Call Us on +918928722715 for the top quality products at best price.

Stainless Steel Duplex 2205 Product Suppliers in India!

Product Stainless Steel Duplex 2205
Grade ASTM A240, ASTM A789, ASTM A790
Equivalents Duplex 2205 , S31803 / S32205, 1.4462, 904L, UR52N+, 6%Mo, 316L
Items Pipe, Tubes, Tubing, Fittings, Flanges, Valves, Fasteners, Sheet, Square Bar, Threaded Bar, Plate, Hexagon Bar, Fasteners and Fixings, Round Bar, Flat Bar, Rebar, Angle, Tube & Pipe, Wire
Size 2.0 to 50 mm in width of 1000, 1250, 1500 and 2000
Pipe Type Seamless, Welded, ERW, Fabricated, Custom Size Pipes
Specifications ASTM, ASME, DIN, GOST, JIS
Certification EN 10204 3.1
Fittings Type Butt Weld, Screwed & Socket Weld, Flanges, Instrumentation
Other Fittings Elbows, Tees, Reducers, Caps, Stub Ends, Flanges (ANSI, Table E, D and H), Nuts, Bolts, Screws, Threaded Bars
Packaging Plastic closes both ends. Hexagonal bundles with maximum 2kg with several metal strips.

Full Range of Stainless Steel Duplex 2205 Products

Stainless Steel Duplex 2205 Pipes Stainless Steel Duplex 2205 Seamless Pipes
Stainless Steel Duplex 2205 Welded Pipes Stainless Steel Duplex 2205 Square Pipes
Stainless Steel Duplex 2205 Flanges Stainless Steel Duplex 2205 Buttweld Fittings
Stainless Steel Duplex 2205 Forged Fittings SS Duplex 2205 Socket Weld Pipe Fittings
Stainless Steel Duplex 2205 Threaded Fittings Stainless Steel Duplex 2205 Fasteners
Stainless Steel Duplex 2205 Nuts & Bolts Stainless Steel Duplex 2205 U Bends & Tubes
Stainless Steel Duplex 2205 Valves Stainless Steel Duplex 2205 Tubes
Stainless Steel Duplex 2205 Furnace Tubes Stainless Steel Duplex 2205 Seamless Tubing
SS Duplex 2205 Heat Exchanger Tubes Stainless Steel Duplex 2205 Large Dia. Pipes
Stainless Steel Duplex 2205 Boiler Tubes SS Duplex 2205 High Pressure Pipes
Stainless Steel Duplex 2205 Forgings SS Duplex 2205 High Temperature Pipes

What is Duplex 2205 Stainless Steel?

Duplex 2205 is a two-phase ferritic/austenitic – structures are approximately 50/50 austenite and ferrite and physical properties are a combination of the ferritic and the austenitic grades. It is the most widely used nitrogen enhanced duplex stainless steel grade and is characterized by high yield strength, double that of the standard austenitic stainless steel grades.It was developed to combat common corrosion problems encountered with the 300 series stainless steels. It demonstrates good fatigue strength, as well as outstanding resistance to stress-corrosion cracking, crevice, pitting, erosion and general corrosion in severe environments. Duplex Steel 2205 is not generally suitable for use at temperatures above 300°C as it suffers from precipitation of brittle micro-constituents, nor below -50°C because of its ductile-to-brittle-transition. It finds applications due to both excellent corrosion resistance and high strength. “Duplex” describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430.

Duplex family consists of:

  • Lean Duplex SS – lower nickel and no molybdenum – 2101, 2102, 2202, 2304
  • Duplex SS – higher nickel and molybdenum – 2205, 2003, 2404
  • Super Duplex – 25Chromium and higher nickel and molybdenum “plus” – 2507, 255 and Z100
  • Hyper Duplex – More Cr, Ni, Mo and N – 2707

What is the Difference Between Stainless Steel 904L, Duplex 2205 and Super Duplex 2507?
What is the Difference Between Duplex and Austenitic

Super Duplex stainless steel has all of the same benefits as its counterpart - Duplex Stainless Steel; the main difference being that this metal has a higher chromium, nitrogen and molybdenum content, which provides it with increased corrosion resistance. Duplex stainless steel is more durable with twice as much strength & better performance index than a regular traditional stainless steel. Hence a lighter product can bring about a better performance. The alloys used to arrive at duplex quality steel renders unique feature like high resistance to pitting, cracking & corrosion to the ultimate outcome thereby making duplex steel a much favored product in the stainless steel industry. The same material is used while manufacturing duplex stainless steel and super duplex stainless steel; however the usage ratio is different in both cases & change in ratio results in increased strength, & corrosion resistance. Many of the applications in which 904L grade has previously performed well can now be fulfilled at lower cost by duplex stainless steel 2205 (S31803 or S32205), so 904L is used less commonly than in the past.
Duplex vs. Austenitic
Duplex Grades Austenitic Grades
2202 /2101/2102 304L
2304 316L
2003 /2404 317L, 317LMN
2205 904L
255 / 2507 / Z100 / 2707 6Mo Grades

Applications of Stainless Steel Duplex 2205

Duplex SS must be used for applications which operate between -50ºF and +600ºF.
  • Hydrometallurgy
  • Water
  • Structures
  • Well screens for Oil and gas industry
  • Processing equipment
  • Transport, storage and Components for the chemical processing industry
  • High chloride and marine environments
  • Paper machines, liquor tanks, Screens and other components for the pulp and paper digesters
  • Marine applications
  • Chemical Plant, Chemical Tanker
  • Seawater desalination Plant, Seawater pump
  • Thermal power plant flue gas desulfurization plants
  • Bridge

Properties and Processing Characteristics of Stainless Steel Duplex 2205


  • Excellent mechanical properties
  • High corrosion resistance
  • Good fabricability
  • Thinner gauges due to higher strength –
  • Weight savings!
  • Better durability and reduced maintenance –
  • Longer service life!
  • Cost efficient alloying (High N, low Ni) –
  • Cost stability!
  • Customer service and prefabrication
  • Support and added value!
  • Immproved Cost Efficiency
  • Duplex = Austenitic-Ferritic structure
  • Higher mechanical strength than standard grades
  • Good resistance to pitting and crevice corrosion
  • Good weldability
  • Higher fatigue resistance than standard grades
  • High resistance to stress corrosion cracking and corrosion fatigue
  • Low price for pitting and crevice corrosion resistance (price for PRE very low)
  • High wear resistance
  • Low thermal expansion
  • High energy absorption


Various welding methods are applicable in the same manner as with the standard austenitic stainless steels, including shielded metal arc welding, TIG welding, and plasma welding. Use of welding electrodes for Duplex 2205 is recommended. Preheating and postheating are not necessary. In welding, the interpass temperature should be no more than 100°C in order to prevent formation of intermetallic compounds.

Types of Duplex 2205 Stainless Steel

* Pipelines * Heat Exchangers * Pressure Vessels
* Flanges and fittings * Valves * Processing Equipment
* General Construction * Threaded Bar * Fasteners and Fixings
* Tube * Special Sections * Sheet and Plate
* U Channel * Flat Bar * Round Bar
* Hollow Bar * Angles * i Beam

Chemical, Mechanical and Physical Properties of Duplex 2205


Standard Duplex 2205
UNS S31803 / S32205
Werkstoff Nr. 1.4462

ASTM Specifications

Material Size Sch. Specification ASTM /ASME Specifications
Duplex 2205 1/8″ Sch 5 IS Seamless ASTM A 789 / 790
Duplex 2507 to Sch 10 BS Welded ASTM A 789 / 790
6″ Sch 40 ASTM Seamless ASME SA 789 / 790
Sch 80 UNS Welded ASME SA 789 / 790
Sch 160 Etc.

Product Standards

Seamless tube: EN 10216-5, NFA 49-217
Seamless and welded tube: ASTM A789
Seamless and welded pipe: ASTM A790
Flanges and valves: ASTM A182
Fittings: ASTM A182; A815
Plate, sheet and strip: ASTM A240, EN 10088-2
Bar and shapes: ASTM A276, A479, EN 10088-3
Forged billets: EN 10088-3

Grade Specification Comparision

Grade UNS No Euronorm Swedish SS Japanese JIS
No Name
2205 S31803 / S32205 1.4462 X2CRNIMoN22-5-3 2377 SUS 329J3L

Chemical Composition

Grade C Mn Si P S Cr Mo Ni N
2205 (S31803) Min 21 2.5 4.5 0.08
Max 0.03 2 1 0.03 0.02 23 3.5 6.5 0.2
2205 (S32205) Min 22 3 4.5 0.14
Max 0.03 2 1 0.03 0.02 23 3.5 6.5 0.2

Duplex 2205 Stainless Steel Physical and Mechanical Properties

Duplex Stainless Steels have roughly twice the yield strength of their counterpart austenitic grades. This allows equipment designers to use thinner gauge material for vessel construction.

Density 7.8 g/cm3
Melting Point 1440 °C (2625 °F)
Tensile Strength Psi – 90000 , MPa – 620
Yield Strength (0.2%Offset) Psi – 65000 , MPa – 450
Elongation 30%

Fabrication Data

Fabrication of all stainless steel should be done only with tools dedicated to stainless steel materials. Tooling and work surfaces must be thoroughly cleaned before use. These precautions are necessary to avoid cross contamination of stainless steel by easily corroded metals that may discolour the surface of the fabricated product.

Hot Forming

Most Duplex 2205 producers recommend a maximum hot forming temperature between 2010 and 2100°F (1100 to 1150°C). If the shape of the work piece is not compact, the edges may be significantly cooler than the bulk, and there is risk of cracking in the cooler regions.

Cold Forming

Duplex 2205 has shown good formability in a variety of fabrications. The high strength of Duplex 2205 can pose problems. Even when the equipment has sufficient power, allowance must be made for higher spring-back caused by the grade’s high strength.

Corrosion Resistance

Similar to relative austenitic alloys (2202 and 2304 are similar to 304 & 316). General corrosion resistance can vary greatly with changes in concentration, pH, temperature and impurities. It is important to discuss these variables for any application!

Grade 2205 stainless steel exhibits excellent corrosion resistance, much higher than that of grade 316. It resists localized corrosion types like intergranular, crevice and pitting. The CPT of this type of stainless steel is around 35°C. This grade is resistant to chloride stress corrosion cracking (SCC) at temperatures of 150°C. Grade 2205 stainless steels are apt replacements to austenitic grades, especially in premature failure environments and marine environments.

Over 200 Tons in Stock for Duplex 2205 Stainless Steel Products!

As one of the biggest Duplex 2205 stainless steel stockholder and supplier in India, Metallica carries inventory of over 200 tons in its warehouses in Mumbai, Maharashtra India. We sell our Duplex 2205 steel products throughout India, and to international clients.

How are Steel Pipes Certified?

Certification of Steel Pipes

Manufacturers issue a Material Test Report or Mill Test Report to validate that the product meets the chemical analysis and mechanical properties specification. The MTR will contain all relevant data to the product and will accompany the product through its lifecycle.

The following are typical parameters that may be recorded on an MTR:

  • Chemical composition including carbon content, alloys, and sulfur
  • Material size, weight, identification, and grade
  • Material heat number, which ties back to the processing batch
  • Mechanical properties like tensile strength, yield strength, and elongation

At Metallica, we will Provide you with Original MTR’s for all Duplex 2205 Stainless Steel Pipe and its Related Products! We will Send Our Test Certificates, along with Quotation