Duplex plate

Duplex plate
What is duplex plate ?

Duplex steel is a corrosion resistant work hardenable alloy that contains a high level of chromium. Its high end mechanical properties are due to its chemical composition and duplex microstructure. Duplex Plate Supplier suggests that as they contain both ferritic and austenitic structures, they are tougher than the standard ss. They have almost double the strength, with higher durability and improved heat transfer. They are also more stable than austenitic ss due to lower nickel content.

Duplex Plate Material Grade determines its exact properties and applications where they can be used. But, in general, they are found in water desalination plants, seawater system, water transmission pipes, stock washers, oil & gas, phosphroic acid production, etc. They show good resistance to different types of corrosion including pitting and crevice. They can also resist stress corrosion cracking, erosion and fatigue.

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India's first ever supplier of duplex sheet as per ASTM A240, read about its heat treatment procedure

What is the duplex stainless steel plate heat treatment procedure?

The duplex plate grade heat treatment procedure will include:

  • Solution annealing where the plate is heated within a temperature range of 1040 to 1120 °C for a specific time to ensure complete precipitation dissolution and microstructure uniformity.
  • The Duplex Plate is then rapidly quenched to a lower temperature which ensures desirable properties.
  • Aging can be an option in a few cases, depending on application requirements.
  • Finally, the Duplex Stainless Steel Plate is cooled to room temperature and inspected for signs of defects, warping, etc.

We are most reliable stockist of no. 1 finish duplex stainless steel plate in Mumbai use for food and beverage industry, compare DSS and SDSS plate

Duplex stainless steel plate

Duplex stainless steel plate

Duplex steel plate

Duplex steel plate

Duplex sheet

Duplex sheet

What is the distinction between duplex steel and super duplex steel?
  • Super duplex stainless steel has a higher alloy content than duplex steel. They have increased chromium, molybdenum and nickel content.
  • Super duplex offers higher corrosion resistance in different aggressive environments.
  • Super duplex has all the mechanical properties of duplex steel plate, with higher tensile and yield strengths.
  • Super duplex is used for more demanding applications and they are generally more expensive.

At affordable prices, we have ready stock of duplex steel plate in thicknesses ranging from 5 to 100 mm and width 1500 to 3000 mm. Order online to save money.

Duplex plate specification
Thickness Width Length
5 to 100 mm 1500 to 3000 mm upto 12000 mm
Specification Grades Application
ASTM A240/ ASME SA240 Duplex 2205 (UNS S32205/ S31803)
Nuclear sector, oilfield fabrication
We provide duplex stainless steel sheet, strip and coil that is cut to length in any size in accordance with the needs of the client, explore more available types
Various types of Duplex sheet
Stainless steel duplex plate

Stainless steel duplex plate

  • width : 2000/1500/3000/2500 mm
  • thickness : 5-100 mm
  • length : up to 12000 mm
Duplex stainless steel sheet

Duplex stainless steel sheet

  • Oilfield fabrications
  • Pressure vessels
  • Nuclear sectot
Duplex stainless plate

Duplex stainless plate

  • Norsok MDS D45
  • ASTM A 240 | ASME SA240
  • ISO 15156/NACE MR 0175
Are odd sizes of duplex stainless plate hard to find? Don't worry, you can now order online at dealer prices, see properties
Duplex steel plate equivalent
STANDARD WERKSTOFF NR. UNS
Duplex 1.4462 / 1.4462 UNS S31803 / UNS S32205
DSS sheet mechanical properties
Material Hardness (HB) MAX Yield Strength
0.2% ksi (min)
Elongation % Tensile Strength
ksi (min)
Duplex 217 65 25 90
Duplex stainless plate chemical properties
Mn N C S Si P Cr Mo Ni
2205
(S32205)
2.0
max
min: 0.14
max: 0.20
0.03
max
0.02
max
1.0
max
0.03
max
min: 22.0
max: 23.0
min: 3.0
max: 3.5
min: 4.5
max: 6.5
2205
(S31803)
2.0
max
min: 0.08
max: 0.20
0.03
max
0.02
max
1.0
max
0.03
max
min: 21.0
max: 23.0
min: 2.5
max: 3.5
min: 4.5
max: 6.5
What exactly is the purpose of duplex steel plate?

The duplex plate suppliers suggest the products can be used for a wide range of corrosive environments including chloride-containing, acidic, caustic and chemical processing solutions. They can be used in industries like oil & gas, desalination plants, chemicals, pharmaceuticals, pulp & paper, water treatment, food & beverage, construction, infrastructure and energy sectors. Duplex materials can withstand salt water and hence they can be used in marine environments.

How do you recognise a duplex sheet?

The duplex sheet suppliers have suggested a few ways to recognize the duplex sheets:

  • They have a dual-phase microstructure with equal quantities of ferrite and austenite phases.
  • The duplex steel sheet is generally magnetic but the level varies with the exact composition.
  • They show better corrosion resistance and higher strengths compared to standard austenitic stainless steel.
  • The duplex stainless steel sheet must conform to industry standards and pass different tests to ensure quality.
What are the benefits of duplex stainless plate?
  • The duplex stainless plate exhibits high corrosion resistance in a wide range of acidic and chloride environments.
  • They have high strength, light weight and can have compact design without compromising the structural integrity.
  • They have a good balance of strength and toughness which prevents brittle fracture.
  • The duplex stainless steel sheet shows good fatigue resistance and has improved high temperature performance.
  • The low nickel content of duplex ss makes it affordable. The material’s corrosion resistance and durability also lower the maintenance cost.
  • They are quite versatile and have a long service life, even in different aggressive environments.
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