Selecting The Right Duplex Steel UNS S32205 Washers For Chemical Processing Applications

Selecting The Right Duplex Steel Uns S32205 Washers For Chemical Processing Applications

If you’re in the chemical processing industry, making the right selection regarding Duplex Steel UNS S32205 Washers is essential. From media blasting and material plating to hydroelectric applications – these fasteners are used for many different tasks! These washers have a distinct set of properties and characteristics that make them uniquely suitable for a variety of industrial projects. In this article, we’ll discuss why Duplex Steel UNS S32205 Washers are particularly well-suited for various chemical processing operations and how selecting the right option can save money, time, and hassle. Read on to learn more about these dynamic fasteners!

What are Duplex Steel Uns S32205 Washers?

Duplex steel UNS S32205 washers are corrosion-resistant fasteners designed for use in stainless steel and other extreme environments. Made from a blend of austenitic and ferritic steels, these washers offer superior strength and high resistance to stress corrosion cracking (SCC). They feature excellent pitting corrosion resistance in chloride-rich media and greater toughness than those made with regular steels. Furthermore, their higher chromium content ensures better weldability than standard stainless steel washers. With their robust composition, Duplex S32205 washers are ideal for applications such as power plant piping systems, offshore platforms, and oil extraction facilities – anywhere where superior performance is critical.

Corrosion resistance

Duplex steel S32205 washers have excellent corrosion resistance in various industrial environments. Compared to standard austenitic stainless steels, its higher chromium and molybdenum content makes it highly resistant to general and localized corrosion such as pitting, crevice corrosion, stress-corrosion cracking and intergranular attack. Additionally, its low carbon content reduces the risk of sensitization during welding operations. These washers are especially useful in reducing the possibility of ‘passivation’ due to chlorine or chlorides in certain environments where stainless steels are exposed to aggressive acidic conditions. Therefore, it is suitable for applications involving contact with such materials, including chemical processing equipment or marine infrastructure components.

Temperature Resistance

Uns S32205 washers are known for their excellent temperature resistance in diverse applications. These washers have a 20-25% chromium content and 3 to 4.5% nickel content. This combination of alloying elements gives the material superior properties, including amazing high-temperature performance up to 600 °C (1110°F). It has great thermal conductivity and a low coefficient of thermal expansion, making it an ideal choice for applications that require elevated temperatures or where frequent heating is necessary. Its superior fire safety rating makes it perfect for industrial equipment exposed to extreme heat conditions, such as ovens, boilers, flue pipes, and furnaces.


One essential property a washer must have is strength. Duplex stainless steel Uns S32205 washers have twice the strength of regular austenitic stainless steel washers, making them ideal for applications that require high strength.


Although duplex stainless steel Uns S32205 washers may seem more expensive than other materials, they are highly cost-effective in the long run. This material has exceptional durability, making it less prone to wear and damage over time, reducing the need for frequent replacements.


In chemical processing applications, washers are subjected to various working conditions. Therefore, the right washer should be malleable, allowing easy bending and shaping without cracking. Duplex stainless steel Uns S32205 have excellent malleability, making them easy to shape without the risk of cracks.


Selecting the right washer material is crucial in ensuring the safety and efficiency of your chemical processing operation. Duplex stainless steel S32205 washers are an ideal choice due to their corrosion resistance, temperature resistance, strength, cost-effectiveness, and malleability. However, before selecting the right washer, you must consider the specific conditions of your application to ensure that you choose the most appropriate washer for your operation needs.