SUS 304 H9 Stainless Steel is a type of stainless steel from the SUS 304 group, processed to achieve high precision with an H9 tolerance standard. This steel is noted for its excellent corrosion resistance and high strength, making it suitable for applications requiring high precision and good wear resistance.

Key Characteristics of SUS 304 H9 Stainless Steel:

- Chemical Composition:
- Chromium (Cr): 18-20%, providing corrosion resistance and a polished appearance.
- Nickel (Ni): 8-12%, enhancing ductility and heat resistance.
- Carbon (C): Up to 0.08%, improving hardness.
- Manganese (Mn): Up to 2%, supporting the steel structure.
- Silicon (Si): Up to 1%, enhancing corrosion resistance and machinability.

- Physical Properties:
- Corrosion Resistance: SUS 304 offers high corrosion resistance suitable for a wide range of environments.
- Hardness and High Precision: Meets the H9 tolerance standard, providing high precision and hardness, suitable for strict applications.
- Good Machinability: Can be easily machined with high precision, including cutting, drilling, and grinding.

- Applications:
- Machinery Industry: Suitable for components and parts requiring high precision and wear resistance.
- Food and Pharmaceutical Industry: Ideal for equipment and fittings requiring good corrosion resistance and ease of cleaning.
- Chemical Industry: Used in applications requiring high corrosion resistance and durability in chemical environments.

- Form and Size:
- SUS 304 H9 is typically available in sheets, bars, or tubes, with sizes and shapes tailored to specific application requirements.

Manufacturing and Processing:
- Production Process: SUS 304 H9 is produced through cold rolling and processing to achieve precision and hardness according to H9 standards.
- Machining: Can be machined using mechanical methods such as cutting, drilling, and grinding with high precision.
(Source: Internet)