Base oil SN150 SN350 SN500 SN650 in flexi ISO tank and drum
What is Base oil?
Base oils SN 150 , SN 350 , SN 500 and SN 650 are produced in a series of steps which are designed to enhance certain desirable properties. For paraffinic oils, these include viscosity index, oxidation resistance, thermal stability and low temperature fluidity. Normally base our categorized based on viscosity index including SN 150 , SN 350 , SN 500 and SN 650 Starting from petroleum crude oil, the typical process for making lubricant base oil is as follows:
- Separation of lighter boiling materials, such as gasoline, diesel, etc.
- Distillation to give desired base oil viscosity grades
- Selective removal of impurities, such as aromatics and polar compounds
- Dewaxing to improve low temperature fluidity
- Finishing and improving oxidation resistance and heat stability generally both Solvent Refined and Hydrocracked base oils are manufactured this way, but differ in the processes used.
Base oil grade SN 150 350 500 650
| Test Items | ASTM | P-8 | P-20 | P-31 | P-96 | P-116 | P-480 |
| (Premium | (Premium | (Premium | (Premium | (Premium | (Premium | ||
| 60N) | 100N) | 150N) | 500N) | 600N) | 150BS) | ||
| Appearance | Visual | B&C | B&C | B&C | B&C | B&C | B&C |
| Density @ 15.6℃, kg/L | D1298 | 0.8751 | 0.854 | 0.863 | 0.8731 | 0.8791 | 0.8929 |
| Color (ASTM) | D1500 | L0.5 | L0.5 | L0.5 | L0.5 | L0.5 | L1.0 |
| Kinematic Viscosity @ 40℃, cSt | D445 | 7.921 | 20.94 | 30.47 | 95.86 | 117 | 488.6 |
| Kinematic Viscosity @ 100℃, cSt | D445 | 2.192 | 4.236 | 5.189 | 11.24 | 12.49 | 31.85 |
| Viscosity Index | D2270 | 71 | 107 | 101 | 96 | 98 | 96 |
| Flash Point, COC, ℃ | D92 | 149 | 210 | 212 | 258 | 259 | 316 |
| Pour Point, ℃ | D5950/6749 | -20 | -15 | -12 | -14 | -14 | -14 |
| Sulphur, wtppm | D5453 | <10 | <10 | <100 | <100 | <100 | <100 |
| Conradson Carbon Residue, wt% | D4530 | <0.01 | <0.01 | <0.01 | 0.01 | 0.01 | 0.2 |
| Copper Strip Corrosion, 100℃, 3 hrs | D130 | 1b | 1b | 1b | 1b | 1b | 1b |
| Total Acid Number, mgKOH/g | D974 | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 | <0.01 |
| Saturates, wt% | D2007 | – | >90 | >90 | >90 | – | – |
Packing of base oil
Drum: All grade is possible to fill SN 150 , SN 350 , SN 500 and SN 650
Flexi
ISO tank
Usage of base oil
- Engine oils/Motor oil
- Aromatic Transmission fluids
- High performance gear oils
- Metal working lubricant
- Greases oils
- Hydraulic oils
- Transformer oils
Care and cautions of handling base oil
- Prevent any splashing, and keep away from combustible materials.
- Store under cover and away from any risk of pollution.
- Dispose of the used oil correctly.
- Don’t pour down drains, into watercourses or the soil.
- Lubricants consisting of highly refined mineral oils with specification additives.
- In normal conditions of use, this lubricant presents no particular toxic hazard.
- All lubricants, of any kind should be handled with great care, particularly avoiding can contact with the skin.
Base oil classification
Before reviewing how base oil is manufactured, we should explain the American Petroleum Institute’s (API) Base Oil Classification system. For engine oils, the API system classifies base oils into five major groups, as shown below.
While these groups were originally intended to be used for engine oils, their usage has expanded beyond this area.
API Base Oil SN 150 , SN 350 , SN 500 and SN 650 Characteristics Manufacturing Group Sulphur Saturates Viscosity Index Method Wt, % Wt, % VI I > 0.03 < 90 80-119 Solvent Refined II < 0.03 > 90 80-119 Hydroprocessed III < 0.03 > 90 120 + Severely Hydroprocessed IV Polyalpha Olefins (PAOs) Oligomerization V Other Base Oils Various Group I, or conventional base oils manufactured by Solvent Refining, make up most of the base oil produced in the world today.
Containing more than 0.03 wt % Sulphur and less than 90 wt % Saturates, they are less pure than Hydroprocessed or Synthetic base oils. Group II and III base oils are manufactured by what the API calls Hydro – processing or Severe Hydro processing. These are just other names for Petro-Canada’s Patented HT Purity Process.
With Sulphur content of less than 0.03 wt % and Saturates content of more than 90 wt %, they are more pure than Group I base oils.
Specification of base oil
Characteristic Significant Difference COLOUR HT Severely Hydrocracked base oils are clear and colorless VISCOSITY INDEX HT Severely Hydrocracked base oils have high VIs so they ‘thin-out’ less at high temperatures.
OXIDATION RESISTANCE HT Severely Hydrocracked base oils respond very well to anti-oxidants and so have excellent resistance to oxidation and long lubricant life in finished products. THERMAL STABILITY HT Severely Hydrocracked base oils have very good resistance to heat. CARBON RESIDUE HT Severely Hydrocracked base oils produce low residues. DEMULSIBILITY HT Severely Hydrocracked oils separate readily from water.
LOW TOXICITY HT Severely Hydrocracked base oils have low toxicity, due to a virtual absence of impurities. Petro-Canada White Oils are pure enough to be used in cosmetics and pharmaceuticals. BIODEGRADABILITY HT Severely Hydrocracked base oils have biodegradability characteristics.