Super duplex plate
Introduction to Super Duplex Steel Plates
Duplex super plate refers to a type of metal plate that is made from SDSS. These plates are mostly utilized while constructing pressure vessels, heat exchangers, pipes, and storage tanks.
SDSS is a highly corrosion-resistant alloy. It exhibits superior strength and excellent resistance to stress corrosion cracking, pitting, and crevice corrosion.
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Common Applications of Super Duplex Stainless Steel Sheets
A SDSS plate finds numerous applications in industries that require exceptional corrosion resistance, high strength, and durability. These super duplex steel strips are mostly employed in offshore platforms, subsea pipelines, and the oil and gas processing industries.
A SDSS sheet is utilized in desalination plants where seawater is converted into fresh water. Super duplex sheets find uses and applications in construction and architecture particularly in structures that demand excellent strength and corrosion resistance.
Explore Specifications for Super Duplex Perforated Sheets
Super duplex steel sheet
Super duplex strip
SDSS flat sheet
Standard Testing Methods for Super Duplex Stainless Plates
To inspect various properties and characteristics of the super duplex sheet, many testing methods are employed. Visual inspection entails examining the surface of the SDSS plate for any visible defects.
A dimensional inspection is conducted by manufacturers to verify the dimensions and tolerances of the super duplex plates. Tensile testing measures the mechanical properties of the SDSS sheet including its ultimate tensile strength.
Duplex Pipeline Solutions selects cutting tools and machining settings as per Super Duplex sheet grade and thickness.
Specification of super duplex plate

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Explore thermal and electrical conductivity of Super Duplex Stainless Steel plate with Duplex Pipeline Solutions for assured performance.
Types of Super Duplex Stainless Steel sheets
Super duplex stainless steel plate
- Length: 2.44m, 3m, or as required
- Finish: cold rolled sheet, hot rolled
- Hardness: spring hard, soft, hard
Super duplex steel rolling sheet
- Form: Clad Plate, Plain Sheet, Plate, Sheet
- Yield strength: 480 MPa
- Profiling: plasma plate cutting
Super duplex hot-rolled plate
- Value added services: slitting, polishing
- Tensile strength: 620 MPa
- Width: 10-2500mm
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Chemical composition of super duplex steel plate

Mechanical properties of SDSS plate

Key Considerations for Machining Super Duplex Perforated Sheets
When machining a ASTM A240 SDSS perforated sheet, several factors must be considered to ensure successful and efficient machining processes without any error. Selecting the appropriate cutting tools is vital when properly machining the perforated sheets.
Proper lubrication and cooling are mandatorily performed by manufactures during the machining process of the perforated sheets. Lubrication helps to control heat generation and prevent workpiece and tool damage during the machining process.
Thermal and Electrical Properties of Super Duplex Plates and Strips
Super duplex steel exhibits a lower thermal conductivity as compared to pure metals like copper or aluminum. The thermal conductivity of SDSS is usually 15 to 20 W/m·K which is lower than that of common austenitic SS.
EN 10088-2 SDSS products have an electrical conductivity of 1 to 3 MS/m which is lower as compared to that of other steel grades. This makes SDSS a less conductive material for electrical and electronics applications.
What are the benefits of using Super Duplex Stainless Steel sheets in corrosive environments?
- SDSS sheets exhibit exceptional corrosion resistance which helps to prevent localized corrosion such as pitting and crevice corrosion.
- SDSS sheets show exceptional strength and toughness as compared to standard austenitic stainless steels
- The super duplex stainless steel coil can endure high pressures, temperature fluctuations, and mechanical loads without compromising its structural integrity.
- SDSS sheets exhibit extended service life, lowering downtime and boosting operational efficiency in high-corrosion environments
Our products
- Duplex pipe
- Duplex tube
- Super duplex pipe
- Super duplex tube
- Duplex heat exchanger tubes
- Super duplex heat exchanger tubes
- Duplex plate
- Super duplex plate
- Duplex pipe fittings
- Super duplex pipe fittings
- Duplex steel flanges
- Super duplex flanges
- Duplex round bar
- Super duplex round bar
- Duplex steel fasteners
- Duplex 2205 pipe
- Super duplex 2507 pipe
- Super duplex 2507 flanges
- ASTM A789 UNS S31803 seamless tube
- ASTM A790 UNS S31803 seamless pipe
- UNS S31803 concentric reducers
- UNS S31803 elbow
- UNS S31803 tee
- UNS S31803 end cap
- UNS S31803 slip on flange
- UNS S31803 socket weld flange
- UNS S31803 lap joint flange

