309 Stainless Steel Sheet

309 stainless steel sheet is a popular material that is used in a wide range of industrial and commercial applications. This high-quality steel is known for its exceptional corrosion resistance, high temperature strength, and excellent resistance to oxidation. It is a versatile and reliable material that is used in a variety of applications ranging from chemical processing to power generation.

One of the great things about 309 stainless steel sheet is its ability to withstand the harshest conditions without deteriorating or losing its physical properties. This makes it an excellent choice for applications in extreme environments, such as high-temperature furnaces, boilers, and exhaust systems. Its high nickel and chromium content provide excellent resistance to oxidation, and its high carbon content enhances its strength and durability.

Moreover, 309 stainless steel sheet is easy to weld, cut, and form, making it an easy material to work with. Its versatility, combined with its excellent properties, makes it a popular choice for a wide range of applications, including chemical and petrochemical processing, oil and gas production and refining, food processing, and aerospace.

Specifications

• Material: 309 stainless steel
• Thickness: 0.5mm-3mm
• Width: 1000mm-2000mm
• Length: customized length available
• Surface finish: 2B, BA, NO.4, HL, 8K mirror, PVC film coating
• Processing technology: hot rolled, cold rolled, annealed, pickled
• High temperature resistance: can withstand temperatures up to 1000°C
• Corrosion resistance: suitable for use in harsh environments with strong acidity or alkalinity
• Application: commonly used in high temperature applications such as furnace parts, heat exchangers, and boiler tubes.

Standards

ASTM A240/A480, ASTM B688, ASTM B463/SB463 ASTM B168/SB168, ASTM B443/SB443, B424/SB424, B625/SB625, B575/SB575, JIS G4303, BS 1449, DIN17441, G4305

Applications

1. Heat exchangers: often used in heat exchanger components due to its high resistance to corrosion and oxidation at elevated temperatures.

2. Chemical processing equipment: Because of its exceptional corrosion resistance, 309 stainless steel is a popular choice for use in chemical processing equipment like tanks, pipes, valves, and fittings.

3. Petrochemical processing: The petroleum and natural gas industries frequently use 309 stainless steel sheet in equipment like heat exchangers, furnace parts, storage tanks, and distillation columns.

4. Power generation: The high-temperature strength and corrosion resistance of 309 stainless steel sheet make it an excellent material for use in power generation equipment such as boilers, turbines, and heat exchangers.

5. Aerospace: used in aerospace applications due to its resistance to high-temperature oxidation.

6. Food processing equipment: The high resistance of 309 stainless steel to corrosion makes it a popular choice for use in food processing equipment, such as dairy tanks, meat grinders, and mixing tanks.

7. Automotive:  used in the automotive industry for parts that require high resistance to corrosion and heat, such as exhaust systems and catalytic converters.

Martensitic Stainless Steel

Manufacturing Process

1. Melting: The first step in the process is melting the raw materials, which include a combination of iron, chromium, and nickel. The melting process is done in a furnace, where high temperatures are used to melt the raw materials to a liquid state.

2. Refining: Once the materials have been melted, they are then refined to remove any impurities that may have been present. The refining process involves purifying the liquid by separating the desirable elements from the undesirable ones.

3. Rolling: After refining, the liquid is then rolled into thin sheets of stainless steel. Rolling is done using a specialized machine that applies pressure to the liquid metal to create sheets of specific thickness.

4. Annealing: The 309 stainless steel sheets are then annealed, which involves heating the metal to a high temperature and then cooling it slowly to improve its mechanical properties.

5. Finishing: The final step in the manufacturing process is finishing the steel sheets. This is done by polishing, buffing, or brushing the surface to create a smooth and shiny finish.

Drawing & Formula

Package

1.stainless steel sheet should be packed in wooden crates or pallets to ensure safe transportation and storage.

2. The use of protective wrapping, such as bubble wrap or shrink wrap, is recommended to prevent scratches or other damages during transit.

3. The packaging should be labeled clearly with product information, including type, grade, and size, to avoid confusion during handling and storage.

4. It is recommended to store the 309 in a cool and dry place to prevent corrosion and maintain its quality.

5. Proper handling of the packaging, such as using appropriate lifting equipment, should be observed to avoid accidents and damages.

6. Regular inspection of the packaging and the stainless steel sheet should be conducted to ensure they are in good condition and any issues are addressed promptly.

7. When unpacking the stainless steel sheet, care should be taken to avoid damage to the material.

8. Lastly, proper disposal of the packaging material should be observed, following company or local environmental guidelines.

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