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2205 Stainless Steel: Properties, Composition, Used in Casting and Applications


In the domain of 2205 stainless steel casting services, HDC brings forth a rich reservoir of proficiency. Navigating the ever-changing landscape of customizing metal components, our cadre has finely tuned specialized aptitudes in fabricating precise components from this top-tier stainless steel grade.

Our adeptness in the casting of 2205 stainless steel spans a comprehensive spectrum of procedures, ensuring adaptability to meet a myriad of client specifications. From intricate casting blueprints to convoluted geometries, we leverage avant-garde technology and a proficient workforce to yield optimal outcomes in each project.

Manifesting an unwavering commitment to excellence, we meticulously adhere to stringent standards across the entire casting continuum. This unwavering dedication assures the creation of 2205 stainless steel elements that not only fulfill but surpass the expectations of our clientele. Rely on HDC as your steadfast ally for top-notch 2205 stainless steel casting solutions2205 stainless steel 1

Table of Content

Benefits of 2205 Stainless Steel2205 stainless steel 2

2205 stainless steel, also known as duplex stainless steel, is a type of stainless steel that offers several advantages. It is characterized by its dual-phase microstructure, which combines features from both austenitic and ferritic stainless steels. The key advantages of 2205 stainless steel include:

  1. Excellent Corrosion Resistance: 2205 stainless steel provides superior resistance to corrosion in various environments, including those with high chloride content. This makes it suitable for applications in marine and chemical industries.

  2. High Strength: It offers higher strength compared to standard austenitic stainless steels like 304 or 316, making it suitable for structural components and equipment subjected to heavy loads.

  3. Good Toughness and Ductility: 2205 stainless steel maintains good toughness and ductility even at low temperatures, ensuring it can withstand harsh conditions.

  4. Stress Corrosion Cracking Resistance: This alloy is highly resistant to stress corrosion cracking, making it an excellent choice for applications in chloride-rich environments.

  5. Good Weldability: It can be easily welded using various methods, ensuring strong and reliable connections.

  6. High Resistance to Abrasion and Erosion: Its robust composition makes it resistant to abrasion and erosion, making it suitable for wear-prone applications.

  7. Versatility: 2205 stainless steel is versatile and finds use in a wide range of applications, including flue gas filters, chemical tanks, heat exchangers, and acetic acid distillation components.

  8. Cost-Efficiency: Its combination of properties, including corrosion resistance and high strength, can lead to cost savings in certain applications due to longer service life and reduced maintenance.

In summary, 2205 stainless steel’s unique blend of properties makes it an ideal choice for applications demanding high corrosion resistance, strength, and durability, such as those in aggressive chemical and marine environments.

What Are the Types of 2205 Stainless Steel?

2205 stainless steel falls into the category of duplex stainless steel. Duplex stainless steels are characterized by their dual-phase microstructure, which consists of both austenitic and ferritic phases. This unique structure gives 2205 stainless steel its exceptional properties.2205 stainless steel 3

What Is the Chemical Composition of 2205 Stainless Steel?

The chemical composition of 2205 stainless steel is a critical factor in its performance. It consists of the following elements:


Content (%)

Iron, Fe


Chromium, Cr


Nickel, Ni


Molybdenum, Mo


Manganese, Mn


Silicon, Si


Nitrogen, N


Carbon, C


Phosphorous, P


Sulfur, S


What Are the Key Characteristics of 2205 Stainless Steel?2205 stainless steel 4

2205 stainless steel possesses several key characteristics that make it a highly sought-after material:

Physical Properties





7.82 g/cm³

0.283 lb/in³

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Mechanical Properties




Tensile strength at break

621 MPa

90000 psi

Yield strength (@strain 0.200 %)

448 MPa

65000 psi

Elongation at break (in 50 mm)

25.0 %

25.0 %

Hardness, Brinell



Hardness, Rockwell c



Thermal Properties




Thermal expansion coefficient (@20-100°C/68-212°F)

13.7 µm/m°C

7.60 µin/in°F

What Are Common Applications for 2205 Stainless Steel?2205 stainless steel 5

2205 stainless steel finds applications in various industries due to its excellent properties. Common uses include:

Automotive: Wheel Spacer, Valve Cover, Intake Flange, Shift Knob

Aerospace: Exhaust Manifold, Impeller, Pipe Fitting, Valve body

Medical: Medical Precision Components, Prosthetic Components, Medical Sensor Power Supply Housing

Motorcycle: Sprocket, Wheels, Wheel Hub, Radiator Guard, Exhaust End Cap, Footpeg

Trailer: Coupler, Hitch Ball, Trailer Hitch Ball Mount, Receiver Tube, Pintle Hook, Channel Bracket, Trailer Jack

Bicycle: Bike Stem, Chainring, Bicycle Hubs, Crankset

Kart: Go Kart Sprocket, Go Kart Washers and Spacer, Go Kart Wheel Hub, Go Kart Steering Wheels

2205 stainless steel casting 1Is 2205 Stainless Steel Magnetic?

Yes, 2205 stainless steel is magnetic, which is characteristic of its duplex structure. The ferritic phase contributes to its magnetic properties.

How Does 2205 Stainless Steel Compare to Other Stainless Steel Alloys?

Compared to other stainless steel alloys, 2205 stainless steel stands out for its superior corrosion resistance, higher strength, and resistance to various forms of corrosion, making it a preferred choice for applications in challenging environments.

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What Is 2205 Stainless Steel Used in Casting?

2205 stainless steel casting is a specific process used to create components and parts from 2205 stainless steel. This type of stainless steel, also known as duplex stainless steel, is highly regarded for its unique combination of properties, including excellent corrosion resistance, high strength, and resistance to various forms of corrosion. The casting process involves heating the 2205 stainless steel to a molten state and then pouring it into a mold to achieve the desired shape.

2205 stainless steel casting 6

What Casting Processes Are Suitable for 2205 Stainless Steel?

Casting 2205 stainless steel can be achieved through various methods, including investment casting and sand casting. The choice of casting process depends on the specific requirements of the component and the desired outcome.

What Are the Benefits of Casting with 2205 Stainless Steel?

Casting with 2205 stainless steel offers several benefits, including:

  • Corrosion Resistance: Ideal for components in corrosive environments.
  • Strength: It provides the necessary strength for demanding applications.
  • Durability: The alloy’s properties ensure long service life.

2205 stainless steel casting 3Can 2205 Stainless Steel Casting Parts Be Heat-Treated?

Yes, 2205 stainless steel casting parts can be heat-treated. The annealing process typically involves heating the material to 1020-1070°C (1868-1958°F) and then water quenching to achieve the desired properties.

2205 Stainless Steel Needs To Be Hot-Worked at What Temperature?

2205 stainless steel should be hot-worked within the temperature range of 954-1149°C (1750-2100°F).

What Finishes Can Be Used for 2205 Stainless Steel Castings?

2205 stainless steel castings can be finished to meet specific requirements. Finishes such as polishing, passivation, and coatings can enhance the aesthetics and performance of the components.

Are There Special Considerations for Welding 2205 Stainless Steel Castings?

Welding 2205 stainless steel castings requires careful attention. It is recommended to use welding methods such as SMAW, MIG, TIG, and manual covered electrode methods. Cooling the material below 149°C (300°F) between passes and avoiding preheating are essential considerations.

2205 stainless steel casting 5

Can 2205 Stainless Steel Casting Be Customized for Specific Applications?

Yes, 2205 stainless steel casting can be customized to meet the specific requirements of your application. The versatility of the alloy, coupled with various casting techniques, allows for the creation of tailored components for a wide range of industries.


2205 stainless steel casting offers a myriad of advantages, making it a prime choice for components in demanding environments. Its remarkable properties, including corrosion resistance, strength, and customization options, make it an indispensable material in various industries.

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