204 Stainless Steel: Compositions, Properties and Applications

Have you ever wondered how those seemingly ordinary, yet durable stainless steel products are made? Today, we will take you to explore the mystery of a widely used stainless steel, 204 stainless steel. Its compositions, properties, and applications will be revealed here one by one. Now, let’s uncover the mysterious veil of 204 stainless steel together.

What are the chemical compositions of 204 stainless steel?

The chemical compositions of 204 stainless steel are as follows:

1. Carbon (C): Max. 0.15%
2. Manganese (Mn): 7.5% to 10%
3. Silicon (Si): Max. 1%
4. Phosphorus (P): Max. 0.06%
5. Sulfur (S): Max. 0.03%
6. Chromium (Cr): 15.0% to 17.5%
7. Nickel (Ni): 3.5% to 5.5%
8. Nitrogen (N): Max. 0.25%

The high chromium content in 204 S/S provides excellent corrosion resistance, making it suitable for a wide range of applications, including the automotive, construction, and food processing industries. The low nickel content also makes it an economical alternative to other higher nickel-containing stainless steels.

What are the mechanical properties of 204 stainless steel?

The mechanical properties of 204 S/S are determined by factors such as heat treatment and cold working. However, generally speaking, 204 S/S exhibits the following mechanical properties:

1. Tensile strength: 620 MPa (90 ksi)
2. Yield strength: 290 MPa (42 ksi)
3. Elongation: 40%
4. Hardness: Rockwell B80

Compared to other types of austenitic stainless steels, such as 304 and 316, 204 S/S has lower mechanical properties due to its lower nickel content. However, it still exhibits good strength and toughness for many applications.

What are the physical properties of 204 stainless steel?

The physical properties of 204 S/S include:

1. Density: 7.8 grams per cubic centimeter (0.281 pounds per cubic inch)
2. Specific heat capacity: 500 J/kg·K (0.12 BTU/lb·°F)
3. Thermal conductivity: 16.3 W/m·K (113 BTU/h·ft·°F)
4. Resistivity: 72.0 μΩ·m (225 ohm·circ mil/ft)
5. Magnetic: 204 S/S is slightly magnetic, but the magnetic properties are enhanced after cold processing or heat treatment.

The thermal conductivity and electrical resistivity of 204 S/S are lower than other types of stainless steel due to its low nickel content. The slight magnetic properties of 204 stainless steel can be used in certain applications, such as electromagnetic devices.

What are the applications of 204 stainless steel?

204 stainless steel is commonly used in various industrial applications that require good corrosion resistance and moderate strength, but require a lower-cost alternative to more expensive austenitic stainless steels such as 304 or 316. Some common applications of 204 S/S include:

1. Automotive exhaust systems: Due to its excellent corrosion resistance and good high-temperature performance, 204 S/S is often used in exhaust systems for cars, trucks, and other vehicles.
2. Food processing equipment: 204 S/S is used in the food processing industry due to its corrosion resistance, ease of cleaning, and other advantages.
3. Structures: 204 stainless steel is used in roofs, gutter systems, and downspouts due to its corrosion resistance and low maintenance requirements.
4. Household appliances: 204 S/S is used in household appliances such as dishwashers and washing machines due to its corrosion resistance and durability.

Overall, 204 S/S is a versatile material that can be used in a wide range of applications that require good corrosion resistance and moderate strength but where cost is also a factor.

Conclusion

Thank you for reading our article. We hope it can help you to have a better understanding of the compositions, properties, and applications of 204 Stainless Steel. If you want to learn more about 204 Stainless Steel, we’d advise you to visit Sino Stainless Steel for more information.

As a leading supplier of stainless steel products across the world, Sino Stainless Steel provides customers with high-quality products like stainless steel coils, carbon steel pipes, stainless steel strips, stainless steel sheets, stainless steel wires, and stainless steel bars at a very competitive price.