Base Oil SN 650

Base Oil SN 650 is a Group I mineral oil, known for its higher viscosity and excellent lubricating properties. It is produced through the refining of crude oil, primarily using solvent extraction and dewaxing processes. SN 650 is commonly used in applications that require thick, durable lubrication, particularly in heavy-duty industrial and automotive environments.

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Chemical and Physical Properties:

• Viscosity at 40°C: 120–130 cSt

• Viscosity Index (VI): 95

• Density at 15°C: ~0.900–0.910 g/cm³

• Flash Point: >230°C

• Pour Point: -6°C to -9°C

• Appearance: Clear, bright, and colorless liquid

• Odor: Mild petroleum odor

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Key Characteristics:

• High Viscosity: SN 650 provides thick lubrication films, ideal for high-load and high-temperature applications, reducing wear and friction in machinery and engines.

• Good Oxidation and Thermal Stability: It resists oxidation and degradation under high temperatures, extending the lifespan of lubricants and reducing sludge formation.

• Low Pour Point: SN 650 remains fluid even at moderately low temperatures, ensuring consistent performance in colder climates.

• Hydrolytic Stability: This oil demonstrates strong resistance to water contamination, making it suitable for use in humid or moisture-prone environments.

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Applications of Base Oil SN 650

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1. In the Automotive Industry:

   • Heavy-Duty Engine Oils: SN 650 is used in the formulation of heavy-duty engine oils, particularly for trucks, buses, and other high-performance vehicles that require thick, durable lubrication.

   • Transmission Fluids: It is a key component in manual transmission fluids and gear oils, providing excellent wear protection and smooth operation in high-load conditions.

2. In Industrial Lubricants:

   • Gear Oils: SN 650 is commonly used in industrial gear oils, where its high viscosity ensures effective lubrication of gears operating under heavy loads and high temperatures.

   • Hydraulic Oils: In hydraulic systems, it provides the necessary thickness to maintain optimal pressure and wear resistance in heavy-duty applications.

3. In Marine and Offshore Applications:

   • Marine Engine Oils: SN 650 is widely used in marine lubricants for large engines, particularly in ships and offshore platforms, where high viscosity and oxidation stability are crucial for long-term performance.

4. In Grease Production:

   • Lubricating Greases: SN 650 is an essential base oil in the production of thick greases used for bearings, joints, and other mechanical parts, offering long-lasting protection and durability under extreme conditions.

5. In Metalworking Fluids:

   • Cutting and Machining Oils: SN 650 serves as a base for cutting fluids used in heavy-duty machining operations, providing both lubrication and cooling properties to enhance tool life and precision.

6. In Rubber and Tire Manufacturing:

   • Processing Oils: SN 650 is used as a processing oil in the production of rubber compounds, particularly in the manufacture of tires and other rubber products that require flexibility and resilience.

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Safety and Handling:

Base Oil SN 650 is generally considered safe for industrial use but should be handled with care. Proper storage and handling procedures should be followed to avoid contamination and ensure the stability of the product. It should be stored in a cool, dry place, away from open flames and direct sunlight. Personal protective equipment, such as gloves and goggles, should be used to prevent direct contact with skin and eyes.

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Comparison to Other Base Oils:

• Base Oil SN 500: SN 650 is thicker and offers better performance in high-load and high-temperature environments compared to SN 500. However, SN 500 is more suitable for medium-duty applications where lower viscosity is required.

• Base Oil SN 150: While SN 150 is lighter and less viscous, SN 650 is better for applications requiring greater lubrication thickness and protection.

• Synthetic Base Oils: Although more cost-effective, SN 650 is outperformed by synthetic base oils in extreme temperature conditions and for long-term stability. However, SN 650 remains a viable choice for many industrial and automotive applications where cost-efficiency is a factor.

If you need more information about the technical details or specific industrial applications of Base Oil SN 650, feel free to ask!