Base Oil 150N

Base Oil 150N is a high-quality light-grade mineral base oil widely used as a fundamental raw material in the manufacture of lubricants, engine oils, industrial oils, hydraulic fluids, metalworking fluids and other petroleum-based formulations. It is commonly known in international trade as 150N Base Oil, SN150 Base Oil, Base Oil SN 150, Neutral 150 Base Oil, Light Neutral Base Oil 150 and Solvent Neutral 150, with the terms SN 150 and 150N frequently used in commercial petroleum markets. Base Oil 150N is generally classified as a Group I mineral base oil when produced by conventional solvent-refining technology, although the exact API base-oil group depends on the refinery process and product specification. This grade is characterized by a balanced viscosity, good solvency, suitable oxidation stability and effective compatibility with lubricant additives. Base Oil 150N is particularly valued by lubricant manufacturers because its viscosity and refining characteristics make it suitable for blending with heavier and lighter base stocks to achieve the required viscosity and performance of finished lubricants. In a conventional refinery, Base Oil 150N is produced from suitable crude-oil fractions through atmospheric and vacuum distillation followed by solvent extraction, solvent dewaxing and hydrofinishing or other finishing processes. The production route removes undesirable aromatic compounds, waxes, sulfur-containing compounds and other impurities while improving color, stability and performance. Depending on the refinery configuration, modern hydrotreating and hydrofinishing stages may be used to achieve improved purity, color and oxidation resistance. The resulting Base Oil 150N is carefully tested for viscosity, viscosity index, flash point, pour point, sulfur, water, color and other quality parameters before commercial shipment. Its relatively low viscosity compared with heavier neutral base oils makes SN150 especially suitable for formulations requiring good fluidity and easy pumping at moderate temperatures. For international wholesale trade, Base Oil 150N is commonly supplied in bulk tanker quantities, flexitanks, drums or intermediate bulk containers according to buyer requirements, transportation regulations and supplier capabilities.

The principal applications of Base Oil 150N are found in the lubricant and petroleum-processing industries, where it functions as a primary blending component rather than a finished lubricant by itself. It is extensively used for manufacturing automotive lubricants, industrial lubricants, hydraulic oils, gear oils, compressor oils, circulating oils, spindle oils, process oils, metalworking fluids, transmission-fluid formulations and general-purpose machinery oils. SN150 can also be blended with higher-viscosity base oils such as SN500, SN600 or Bright Stock to obtain specific viscosity grades required by lubricant manufacturers. In automotive lubricant production, Base Oil 150N can contribute suitable low-temperature fluidity, additive compatibility and balanced viscosity characteristics, while in industrial formulations it provides a stable mineral-oil carrier for additive packages. The commercial types available in the market may differ according to viscosity, viscosity index, sulfur content, pour point, color, refining method and regional specification. Typical products include Group I SN150, conventional Solvent Neutral 150, hydrofinished 150N and refinery-specific 150N grades, while the exact specification should always be confirmed through the supplier’s technical data sheet and certificate of analysis. Base Oil 150N is often selected when manufacturers need an economical mineral base stock with good solvency and blending flexibility. One of its major advantages is its ability to work effectively with additive systems used in conventional lubricant formulations. It also offers good handling characteristics, consistent viscosity and broad availability in international petroleum markets. The product can be combined with other base oils to optimize viscosity, volatility, pour point and finished-lubricant performance. For manufacturers producing automotive and industrial lubricants, selecting a consistent Base Oil 150N source is important because variations in viscosity, sulfur, color, volatility and oxidation stability can influence the final formulation. Therefore, exporters normally provide product specifications, batch information and certificates of analysis to support quality control and international purchasing decisions. Depending on the intended application, buyers may request different technical limits for viscosity at 40°C, viscosity index, flash point, pour point, sulfur and other parameters. Base Oil 150N is therefore a versatile petroleum-derived intermediate suitable for both domestic formulation and large-scale international lubricant manufacturing.

For lubricant manufacturers, its principal commercial advantage is the combination of moderate viscosity, good solvency, reliable blending behavior, broad formulation compatibility and cost-effective performance. It is especially useful when a manufacturer requires a light neutral base oil that can be blended with heavier grades to formulate different lubricant viscosity ranges.

Base Oil 150N – Typical Specification

Parameter	Typical Specification / Description
Product Name	Base Oil 150N
Common Grade	SN150 / SN 150
Base Oil Type	Mineral Base Oil
Typical API Group	Group I, depending on refining process
Kinematic Viscosity @ 40°C	Approximately 28–35 cSt
Kinematic Viscosity @ 100°C	Approximately 4.5–5.5 cSt
Viscosity Index	Typically 90–105
Flash Point	Typically ≥200°C
Pour Point	Typically around −9 to −15°C
Sulfur	Refinery/specification dependent
Appearance	Clear, bright mineral oil
Main Application	Lubricant and industrial oil manufacturing

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FAQ Base Oil 150N

Base Oil 150N, also called SN150 or Solvent Neutral 150, is a light mineral base oil primarily used as a raw material for manufacturing automotive lubricants, industrial oils, hydraulic fluids, process oils and other petroleum-based formulations.

The main applications include engine-oil blending, hydraulic oils, gear oils, compressor oils, circulating oils, spindle oils, metalworking fluids, industrial lubricants and various process-oil formulations.

The principal difference is viscosity. SN150 is a lighter neutral base oil with substantially lower viscosity, while SN500 is a heavier neutral grade. Lubricant manufacturers may blend these grades to achieve the required viscosity and formulation characteristics.

In most petroleum markets, Base Oil 150N and SN150 refer to the same general commercial grade, although the precise technical specification can vary between refineries and suppliers. The TDS and COA should therefore be checked before purchase.

Buyers should evaluate viscosity, viscosity index, flash point, pour point, sulfur content, density, color, appearance and other parameters relevant to their formulation. The supplier should provide a current Technical Data Sheet and Certificate of Analysis.

You can find and evaluate suitable Iranian suppliers and exporters of Base Oil 150N through **Irancorps**, which can assist international buyers in identifying appropriate Iranian sources according to required grade, specification, quantity and export requirements.