All You Need to Know About super duplex plate

Super Duplex Plate is a term used to refer to a type of stainless steel that possesses a highly corrosion-resistant ability. This alloy is highly popular due to its unique characteristics, which makes it an ideal option for use in various industries that require durability and strength. In this blog post, we will provide you with all the necessary details you need to understand about Super Duplex Plate.

What is Super Duplex Plate?

Super Duplex Plate refers to stainless steel with a unique microstructure consisting of Austenitic and Ferritic steel. It possesses a higher percentage of Chromium content, which increases its corrosion-resistant ability compared to conventional stainless steel. Super Duplex Plate is classified under UNS S32750 and S32760 and is known for its high strength.

Applications of Super Duplex Plate

Due to its strength and corrosion-resistant characteristics, Super Duplex Plate is commonly used in various industries. It is highly suitable for building equipment in the offshore industry, such as piping systems, heat exchangers, refineries, and gas processing plants. Super Duplex Plate is also ideal for use in the chemical and petrochemical industries, where it is used to build piping systems, tanks, and heat exchangers. Additionally, the alloy is also a perfect fit for the marine industry.

Advantages of Super Duplex Plate

Super Duplex Plate possesses a unique combination of properties not found in conventional stainless steel. The alloy is highly resistant to corrosion, pitting, and crevice corrosion. Its exceptional strength makes it suitable for use in various industrial applications. The alloy also has excellent toughness and ductility, making fabricating easy. The low thermal expansion coefficient of the Super Duplex Plate makes it perfect for use in extreme temperatures, such as hot-rolling cookers and cryogenic applications.

Machinability of Super Duplex Plate

Due to its composition, Super Duplex Plate can be challenging to machine. The material is known for its high strength, which means it can quickly wear out tools and machinery during machining. However, with the proper cutting tools and lubricants, Super Duplex Plate can be machined successfully, making manufacturing complex parts and equipment possible.

Cost of Super Duplex Plate

Super Duplex Plate is generally more expensive than conventional stainless steel due to its unique characteristics, strength and durability. However, when considering the longer life expectancy of the material and its corrosion resistance, the expense of the Super Duplex Plate proves to be feasible. Additionally, using a Super Duplex Plate reduces the need for replacement parts and repairs, leading to cost savings in the long run.


Super Duplex Plate is a highly unique material with characteristics that make it an excellent fit for various applications. The alloy’s high strength, excellent corrosion-resistant ability, and low thermal expansion coefficient make it perfect for use in the offshore, petrochemical, chemical, and marine industries. Despite its high cost, using a Super Duplex Plate is a wise investment due to its durability and extended life expectancy. If you want to know more about Super Duplex Plate, feel free to contact us; we will be happy to assist you.

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