Key Features of 309S Stainless Steel Plate & Sheet

1. High Chromium & Nickel Content

The elevated levels of chromium and nickel significantly improve oxidation resistance and prevent scaling at elevated temperatures.

2. Excellent Oxidation Resistance

Performs reliably in temperatures up to around 1000°C, maintaining surface integrity and reducing oxidation damage.

3. Good High-Temperature Strength

Retains mechanical strength and structural stability under prolonged exposure to heat.

4. Low Carbon Content (S Grade)

Minimizes carbide precipitation during welding and high-temperature service, improving resistance to intergranular corrosion.

5. Thermal Stability

Capable of withstanding repeated heating and cooling cycles without significant deformation or performance loss.

Technical Advantages

• Strong resistance to scaling and oxidation
• Stable performance under thermal cycling
• Long service life in high-temperature environments
• Good weldability and fabrication capability
• Suitable for heavy-duty industrial applications

Typical Applications

1. Furnace Liners & Components

Widely used in furnace linings, internal structures, and high-temperature chambers due to its excellent heat resistance.

2. Boiler Components

Ideal for boiler parts exposed to continuous high temperatures and pressure, ensuring durability and safety.

3. High-Temperature Containers

Suitable for manufacturing containers and vessels used for processing or storing materials at elevated temperatures.

4. Heat Treatment Fixtures

Commonly used in trays, baskets, racks, and fixtures in heat treatment processes where dimensional stability is essential.

5. Industrial Heating Equipment

Applied in kilns, burners, and thermal processing systems across various industries.

Processing & Fabrication

• Excellent weldability using standard welding techniques
• Suitable for cutting, bending, and forming
• Maintains structural integrity after fabrication
• Can be customized into plates, sheets, and fabricated components

Surface Finish Options

• Hot Rolled (HR)
• Cold Rolled (CR)
• No.1 Finish
• 2B Finish
• Pickled Surface