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What is the disadvantage of duplex steel 2507 Sheets?

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Due to its very high strength as well as its resistance to corrosion and good toughness, duplex steel 2507, which is also known as super duplex stainless steel, provides a number of benefits to its users. Nevertheless, there are a few drawbacks connected with the utilization of duplex steel 2507 sheets, including the following:

1. The price: The price of duplex steel 2507 sheet is often higher than the price of other varieties of stainless steel. The production cost is elevated due to the presence of alloying elements including chromium, nickel, and molybdenum, which are responsible for the material's exceptional qualities.

2. Welding Challenges Despite the fact that duplex steel 2507 may be welded, the metallurgical complexity of the material necessitates that welders be highly competent and experienced. Incorrect welding processes can result in the creation of hazardous phases or a reduction in corrosion resistance, both of which have the potential to negatively affect the overall performance of the sheets.

3. Restricted Availability When compared to traditional stainless steels, duplex steel 2507 may have restricted availability in some areas, as well as in certain sheet sizes and thicknesses. Because of this, locating the necessary material for some applications may prove difficult.

4. Surface Maintenance Just like other stainless steels, duplex steel 2507 can nevertheless undergo surface discoloration or corrosion in some harsh situations, particularly in the presence of chlorides or acidic solutions. This can be prevented by performing surface maintenance on a regular basis. To maintain its attractive look and corrosion resistance over time, it is vital to clean and maintain it properly.

5. Temperature Sensitivity: At extreme temperatures (over about 250 degrees Celsius or 480 degrees Fahrenheit), duplex steel 2507 may display decreased toughness and corrosion resistance. As a consequence of this, it is probably not a good choice for applications that need sustained contact with high temperatures.

It is essential to emphasize the significance of keeping in mind that these drawbacks have to be evaluated in relation to the particular requirements of the application. Duplex steel 2507 continues to be a very sought material in a wide variety of sectors, particularly those in which its one-of-a-kind combination of characteristics is essential for performance and durability.


Calico Metal Alloys is one of the Prominent Manufacturers and Exporters of UNS S31803 SheetsDuplex 2205 Plates & UNS S32205 pipes at a low price to worldwide clients from Mumbai, India.

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