Types of Stainless Steel Seamless Pipe

Stainless steel seamless pipes come in various types and grades, each designed for specific applications based on their properties, corrosion resistance, and mechanical characteristics. Here are some common types of SS SMLS pipes:

Austenitic Stainless Steel Pipes (300 Series):

- 304/304L Stainless Steel:

These are the most widely used stainless steel pipes. They offer good corrosion resistance, formability, and weldability. They are commonly used in various industries including food processing, pharmaceuticals, and architectural applications.

- 316/316L Stainless Steel:

These pipes offer enhanced corrosion resistance, especially in environments with exposure to chloride-containing substances. They are often used in marine applications, chemical processing, and high-corrosion environments.

- 321/321H Stainless Steel:

These pipes contain titanium, which stabilizes the structure against sensitization and intergranular corrosion. They are suitable for high-temperature applications and are often used in heat exchangers and exhaust systems.

Ferritic Stainless Steel Pipes (400 Series):

- 409 Stainless Steel:

Known for its good heat resistance and corrosion resistance, it's often used in automotive exhaust systems and other applications requiring resistance to high-temperature gases.

- 430 Stainless Steel:

This type is known for its excellent corrosion resistance and formability. It's commonly used in decorative applications, appliances, and automotive trims.

Martensitic Stainless Steel Pipes (400 Series):

- 410 Stainless Steel:

Offers good corrosion resistance and moderate strength. It's used in applications like cutlery, surgical instruments, and steam turbines.

- 420 Stainless Steel:

Contains higher carbon content for enhanced strength and hardness. It's used in applications requiring wear resistance, such as surgical tools, bearings, and valves.

Duplex Stainless Steel Pipes:

- 2205 Duplex Stainless Steel:

Combines the properties of austenitic and ferritic stainless steels, offering high strength and excellent corrosion resistance. It's used in industries like chemical processing, oil and gas, and desalination.

- 2507 Super Duplex Stainless Steel:

Offers even higher corrosion resistance and strength compared to 2205. It's used in demanding environments, such as offshore and marine applications.

Precipitation Hardening Stainless Steel Pipes:

- 17-4PH Stainless Steel:

This type can be heat treated to achieve high strength levels. It's used in aerospace, nuclear, and other industries requiring a combination of strength and corrosion resistance.

These are just a few examples of the many types of stainless steel seamless pipes available. When selecting a type of stainless steel seamless pipe for a specific application, it's essential to consider factors such as corrosion resistance, temperature resistance, mechanical properties, and cost. For more details, please contact us: sales@union-steels.com