SN350 base oil

SN350 base oil is a Group I base oil with medium viscosity, positioned in the middle of Group I base oil specifications, and is known for its versatility in lubricant production. It is used as a primary component in lubricant formulations for automotive, industrial, and commercial applications. SN350 is available in three different types: Recycle, Thinfilm, and Virgin, produced by reputable Iranian refineries such as Sepahan Oil Company, Iranol, Behran, and Pars Oil, ensuring consistent quality and performance. Each type undergoes different refining processes, such as solvent refining, dewaxing, and in some cases, hydrogenation, to remove impurities and enhance stability.

SN350 Virgin is produced directly from crude oil through vacuum distillation and solvent extraction, offering high purity with low sulfur content and a high flash point (usually above 200°C), making it ideal for high-quality lubricant formulations. SN350 Recycle is derived from re-refined used lubricating oils, where advanced filtration and purification processes eliminate contaminants, providing a sustainable and cost-effective option with performance similar to Virgin oils. SN350 Thinfilm is produced using thin-film evaporation technology, offering a bright color, low volatility, and improved viscosity control, suitable for specialized applications.

The advancement of solvent refining processes in the 1960s improved the stability and durability of Group I base oils like SN350, making them less reactive than older base oils. These oils typically make up 70–95% of lubricant formulations, with additives enhancing their specific properties. SN350’s viscosity, usually ranging from 60 to 70 centistokes at 40°C, provides a balance between fluidity and film strength, making it suitable for a wide range of temperatures.

Applications

SN350 base oil serves as a foundation for various industrial and automotive lubricants, including:

• Engine oils for gasoline and diesel vehicles
• Gear oils
• Hydraulic fluids
• Metalworking fluids
• Greases
• Compressor oils
• Transformer oils

Advantages of SN350 Base Oil

• Consistent Performance: Maintains properties under various operating conditions.
• High Purity: Low sulfur and ash content, especially in Virgin and Thinfilm types.
• Thermal and Oxidation Stability: Resists degradation at high temperatures.
• Low Volatility: Reduces oil loss and extends service life.
• Viscosity Stability: Maintains consistent flow across different temperatures.
• High Flash Point: Enhances safety in high-temperature applications.
• Cost-Effective: Recycle type offers an economical, eco-friendly option.
• Versatility: Suitable for a wide range of lubricant formulations.

Viscosity Analysis

Viscosity, one of SN350’s key characteristics, measures the fluid’s resistance to flow and is critical for assessing product performance. With a medium viscosity index, SN350 maintains consistent viscosity across varying temperatures, providing reliable lubrication in both cold starts and high-temperature conditions. This makes it ideal for applications that require a balance between fluidity and film strength.

Why Choose Our SN350 Base Oil?

Our SN350 base oils are sourced from reputable Iranian manufacturers such as Sepahan Oil Company and Iranol, and comply with international standards. They are available in Recycle, Thinfilm, and Virgin types to meet diverse needs, from eco-friendly formulations to high-performance lubricants. With efficient logistics from Sefehgan Customs and competitive bulk pricing, we ensure a reliable and cost-effective supply for your business.