Super Duplex Steel Plates and Sheets
Super duplex steel plates and sheets are advanced stainless steel flat products that are used in situations that have high demand of high corrosion resistance capability, high mechanical strength, and high service life. These are extensively used in oil and gas, offshore, marine, chemical processing, and pressure equipment manufacturing, where the conventional stainless steels are failing under the strenuous working environments.
The Super duplex plates and sheets have the advantages of austenitic and ferritic stainless steels and are highly resistant against pitting, crevice corrosion and stress corrosion cracking. They are usually provided in the hot-rolled state and the cold-rolled state, depending on the thickness and the purpose of use. The popular forms of products are as follows super duplex plate, super duplex sheet, super duplex steel plates, and super duplex steel sheets, in either cut size or in project requirements.
Stellar Alloys as a reliable producer and distributor of super duplex steel plates and sheets in India, provides its customers with reliable quality, traceable materials, and application specificity of supply to industries and EPC. We specialize in the supply of super duplex flat products that are internationally standardized and can work in the occurrence of critical service conditions.
Table of Contents
- Types of Super Duplex Steel Plates and Sheets
- Chemical Composition of Super Duplex Plates and Sheets
- Mechanical Properties of Super Duplex Steel Plates and Sheets
- Grades of Super Duplex Plates and Sheets
- Standards and Specifications of Super duplex plates and sheets
- Applications of Super Duplex Steel Plates and Sheets
- Super Duplex Steel Plates and Sheets Pricing
- Why Choose Stellar Alloys for Super Duplex Steel Plates and Sheets?
- Frequently Asked Questions on Super Duplex Steel Plates and Sheets
Types of Super Duplex Steel Plates and Sheets
Super Duplex Steel Shim Sheet
Super Duplex Perforated Sheet
Super Duplex Steel Chequered Plate
Super Duplex Steel Coil
Super Duplex Steel Strips
Super Duplex Steel Foil
Super Duplex Steel Hot Rolled Sheets
Super Duplex Steel Cold Rolled Plate
Matt PVC Coated Super Duplex Steel Sheet
These product types support applications ranging from structural fabrication to precision components and corrosion-resistant linings.
Looking to Purchase Inconel Plates and Sheets
In case you intend to purchase Inconel plates or sheets in India, then the material weight will be necessary in estimating the cost correctly, logistics planning, and fabrication requirements. The weight depends on grade, thickness, width and cutting tolerance, which directly affect the price and delivery.
Use our Inconel plates and sheets weight calculator to get the accurate weight of the material according to your desired size. This solution assists consumers, engineers, and procurement departments in making decisions before ordering a quotation.
Chemical Composition of Super Duplex Plates and Sheets
The chemical composition of super duplex stainless steel is engineered to achieve high strength and superior corrosion resistance, especially in chloride-rich environments.
Element | Typical Composition |
Chromium | 24.0 to 26.0 percent |
Nickel | 6.0 to 8.0 percent |
Molybdenum | 3.0 to 4.0 percent |
Nitrogen | 0.24 to 0.32 percent |
Carbon | Max 0.03 percent |
Iron | Balance |
Mechanical Properties of Super Duplex Steel Plates and Sheets
Super duplex steel plates and sheets offer higher strength compared to standard duplex and austenitic stainless steels, allowing thinner sections and weight reduction in fabrication.
Property | Typical Value |
Yield Strength | Approx 550 MPa |
Tensile Strength | 750 to 900 MPa |
Elongation | Minimum 25 percent |
Hardness | Max 310 HB |
Grades of Super Duplex Plates and Sheets
Super duplex steel plates and sheets are available in internationally recognized UNS grades, each suited for specific service conditions.
UNS Grade | Common Name | Standard | Product Form |
UNS S32750 | Super Duplex 2507 | ASTM A240 | Plates and Sheets |
UNS S32760 | Super Duplex Z100 | ASTM A240 | Plates and Sheets |
Standards and Specifications of Super duplex plates and sheets
Super duplex plates and sheets supplied by Stellar Alloys conform to globally accepted standards to ensure quality, traceability, and application suitability.
Standard | Specification |
ASTM A240 | Super Duplex Stainless Steel Plates and Sheets |
ASME SA 240 | Pressure Equipment Applications |
EN 1.4410 | European Super Duplex Grade |
EN 1.4501 | Enhanced Corrosion Resistant Grade |
Applications of Super Duplex Steel Plates and Sheets
Super duplex steel plates and sheets are widely used in industries requiring resistance to aggressive environments and high mechanical loads.
Typical applications include:
- Oil and gas processing equipment
- Offshore platforms and subsea structures
- Marine and seawater handling systems
- Chemical processing vessels
- Pressure vessels and heat exchangers
- Desalination plants
Super Duplex Steel Plates and Sheets Pricing
The price of super duplex steel plates and sheets depends on grade, thickness, surface finish, order quantity, and market conditions.
Product Type | Thickness Range | Pricing Basis |
Super Duplex Sheets | Thin to medium gauge | Price on request |
Super Duplex Plates | Medium to heavy thickness | Price on request |
Cut Size Plates | As per drawing | Project based |
Why Choose Stellar Alloys for Super Duplex Steel Plates and Sheets?
Stellar Alloys offers a reliable supply of super duplex steel plate and sheets used to manufacture important industrial products to its OEMs, fabricators, and EPC contractors. We supply standard sizes in addition to project-based needs, and we can supply when required to fit the material in harsh service conditions.
Our attention is paid to the regularity of the material quality, its dimensional accuracy, and its adherence to the existing requirements of the super duplex steel plates and sheets. Testing and documentation of materials is availed according to the customer and project needs that help in traceability and quality assurance throughout the supply chain.
Having been an established manufacturer and supplier of super duplex steel plates and sheets in India, Stellar Alloys provides reliable supply of both local and international projects supported by technical coordination and responsive commercial support.
Related Stainless Steel and Alloy Products
To support a wide range of industrial and project requirements, Stellar Alloys also supplies related stainless steel and high performance alloy products. These products are commonly used alongside super duplex steel plates and sheets in fabrication, piping systems, and corrosion resistant applications.
Frequently Asked Questions on Super Duplex Steel Plates and Sheets
Super duplex steel plates and sheets do not have significant differences except in terms of thickness and the manufacturing process. Sheets are thinner and are normally used in fabrication and lining works whereas plates are provided in heavier thicknesses use in structural, pressure vessel and load bearing works.
The most popular grades of super duplex steel plates and sheets are UNS S32750 (Super Duplex 2507) and UNS S32760. These grades are very strong and resistant to pitting and crevice corrosion, and stress corrosion cracking.
The super duplex steel plates and sheets are usually supplied according to the ASTM A 240 and ASME SA 240 standards. Depending on project and regional requirements, European equivalents are also used e.g. EN 1.4410 and EN 1.4501.
The steel plates and sheets that are used in oil and gas, offshore and marine, chemical processing, desalination, and pressure equipment manufacturing are super duplex whose products must have a high level of corrosion resistance and mechanical strength.
The price of this depends on many factors, such as the super duplex steel plates and sheets that are manufactured in various grades, thicknesses, surface finishes, and order quantities, and are based on the market conditions of the raw materials at the time.
Yes, because of their high resistance to corrosion and stress corrosion cracking caused by chloride, super duplex steel plates and sheets are highly applicable in the maritime and seawater environment.
Super duplex steel plates and sheets may be shipped in standard sizes or custom cut sizes depending on drawings or project specifications. Its availability may change with grade, thickness and quantity.
