Base oil SN 500 is a Group I paraffinic base stock, solvent-refined, dewaxed and hydro-refined from the vacuum fraction of crude oil, and intended for lubricants production. Reference figures for a comparable AP/E SN 500 grade show kinematic viscosity of 94-98 mm2/s at 40°C (ASTM D445), viscosity index of 95 minimum (ASTM D2270) and pour point of -6°C maximum (ASTM D97). Stored sealed and protected from water, SN base oils carry a stated four-year shelf life; BHD Group supplies SN-500 within its process-oils range.
Base oil SN 500 is a Group I paraffinic base stock made by solvent-refining and dewaxing the vacuum fraction of crude oil. This guide covers baz yağ sn 500 teknik özellikleri ve kullanım alanları — its viscosity data, how it differs from neighbouring SN grades, and how procurement teams should check it before ordering. Read on for a full baz yağ sn 500 teknik özellikleri ve kullanım alanları overview.
- SN 500 is a Group I paraffinic base oil, not a fully finished lubricant.
- It is solvent-refined, dewaxed and hydro-refined from the vacuum fraction of crude oil (ORLEN, undated).
- Reference kinematic viscosity at 40°C for AP/E SN 500 is 94–98 mm2/s per ASTM D445 (ExxonMobil Basestocks, undated).
- Reference viscosity index is a minimum of 95 per ASTM D2270 (ExxonMobil Basestocks, undated).
- Reference pour point is a maximum of -6°C per ASTM D97 (ExxonMobil Basestocks, undated).
- Sealed and protected from water, SN base oils carry a stated shelf life of four years (Repsol, undated).
Who this guide is for
This page serves three readers. A lubricant blender's technical buyer wants viscosity and pour-point data before qualifying a supplier. A procurement lead at a rubber or tyre plant wants to know where SN 500 fits in a formulation. A QA or compliance reviewer wants to know which test standards apply, so results from different suppliers can be compared fairly.
What is base oil SN 500?
Base oil SN 500 belongs to the Group I paraffinic base oil family. According to Repsol (undated), SN-classified base oils are Group I paraffinic oils with low polycyclic aromatic content, under 3% PCA. They are obtained either by direct distillation of highly paraffinic crude or by propane extraction of the vacuum residue.
According to ORLEN (undated), SN 500 specifically comes from the crude oil vacuum fraction. It is selectively solvent-refined, dewaxed and hydro-refined. This sequence gives better colour along with good low-temperature and thermo-oxidation behaviour, and it is intended for lubricants production.
It helps to separate two terms buyers often blur. ExxonMobil (undated) distinguishes a base stock — a single component from a single manufacturer, defined by viscosity grade — from a base oil, which is a mixture of one or more base stocks in a finished lubricant.
Where SN 500 sits among base oils
Base oils in the SN family are graded by viscosity, with SN 500 sitting in the mid-to-heavy range of that family. Infineum Insight (undated) notes that base stock properties vary enormously between grades, affecting volatility, oxidation resistance, low-temperature pumpability and wear protection. Additives are then used to enhance whichever base stock is chosen.
Technical properties: viscosity, viscosity index, flash point
Buyers evaluating baz yağ sn 500 teknik özellikleri ve kullanım alanları usually start with three numbers: viscosity, viscosity index, and pour point. FACTS for BHD Group's own SN-500 shipment specification are not published on this page; the reference figures below come from a published third-party product data sheet for a comparable AP/E SN 500 grade, cited so they can be checked against any supplier's certificate of analysis.
| Property | Reference value (AP/E SN 500) | Test standard |
|---|---|---|
| Kinematic viscosity at 40°C | 94–98 mm2/s | ASTM D445 |
| Viscosity index | 95 minimum | ASTM D2270 |
| Pour point | -6°C maximum | ASTM D97 |
| Colour | 3.0 maximum (ASTM scale) | ASTM D1500 |
Source: ExxonMobil Basestocks (undated), AP/E SN 500 Product Data Sheet.
What each test standard actually measures
| Standard | What it measures | Why a buyer checks it |
|---|---|---|
| ASTM D445 | Kinematic viscosity, by timing flow through a calibrated glass capillary viscometer | Confirms the oil matches its declared grade under gravity flow |
| ASTM D2270 | Viscosity index, estimated from viscosity readings at 40°C and 100°C | Predicts how much viscosity will shift with temperature in service |
| ISO 3448 | A viscosity classification system for industrial liquid lubricants, including mineral oils | Lets buyers compare grades across suppliers on a common scale |
Sources: ASTM International (undated), D445; ASTM International (undated), D2270; ISO (1992), ISO 3448:1992.
Where SN 500 is used
SN 500 and comparable Group I paraffinic base oils are intended for lubricants production (ORLEN, undated). When one base oil is substituted for another in a finished lubricant, the American Petroleum Institute (undated) sets out minimum prudent physical and engine testing under its Base Oil Interchangeability Guidelines, so performance is not compromised.
For lubricant blenders
A blender qualifying a new base oil source needs viscosity, viscosity index and pour point data upfront, matched against the finished lubricant's target specification. Request the certificate of analysis against the standards in the table above before committing volume.
For QA and compliance reviewers
Because ASTM D445, ASTM D2270 and ISO 3448 are internationally recognised, a QA reviewer can compare certificates from different suppliers on the same basis. Ask which standard each reported figure was tested to, not just the number itself.
SN 500 versus SN 150, SN 350 and SN 650
The evidence pack cited on this page does not include published viscosity, viscosity index or pour point figures for SN 150, SN 350 or SN 650. No comparison numbers for those grades are given here. A buyer weighing SN 500 against a lighter or heavier SN grade should request each grade's own certificate of analysis, tested to ASTM D445 and ASTM D2270, and compare the figures directly.
Storage and handling
According to Repsol (undated), SN base oils do not degrade when stored in sealed containers and protected from water and other agents. Their commercial shelf life is stated as four years from the date of manufacture. Keep containers sealed, keep them dry, and record the manufacture date on receipt so shelf life can be tracked.
What to check before you order
- Request the certificate of analysis, not just a product data sheet.
- Confirm kinematic viscosity at 40°C is tested to ASTM D445.
- Confirm viscosity index is tested to ASTM D2270.
- Confirm pour point and colour figures, and the standards they were tested against.
- Ask whether the grade is classified under ISO 3448 for cross-supplier comparison.
- Confirm the manufacture date and expected shelf life on the shipment.
- Confirm packaging is sealed and suited to keeping the oil free from water contact in transit.
- If substituting for an existing base oil, check the API interchangeability testing expected for that substitution.
Working with BHD Group
BHD Group trades through two divisions, BHD Chemical and BHD Sourcing — two divisions, one house. Base oil SN 500 sits alongside Rubber Process Oil 125, Rubber Process Oil 135, Rubber Process Oil 145 and Rubber Process Oil 155 in the process-oils range, and alongside the headline wax range — Paraffin Wax, Petroleum Jelly and Slack Wax — that the business leads with. Every shipment is quoted on spec, on volume and on origin, Turkish-origin where that applies, with one accountable house behind both divisions. For a specification check or a quote on SN-500 volume, contact BHD Group directly with your target viscosity and packaging requirements.
Sources
- Repsol (undated), SN Lubricant Base Oils — link
- ORLEN (undated), Base oil SN 500 — link
- American Petroleum Institute (undated), API 1509 Annex E — Base Oil Interchangeability Guidelines — link
- ExxonMobil (undated), Basestocks — Basic Frequently Asked Questions — link
- ExxonMobil Basestocks (undated), AP/E SN 500 Product Data Sheet — link
- ASTM International (undated), ASTM D445 — link
- ASTM International (undated), ASTM D2270 — link
- ISO (1992), ISO 3448:1992 — link
- Infineum Insight (undated), Lubricant Base Stocks — link
Frequently asked questions
What is base oil SN 500 and which base oil group does it belong to?
Base oil SN 500 is a Group I paraffinic base oil. It is obtained by solvent-refining, dewaxing and hydro-refining the vacuum fraction of crude oil (ORLEN, undated), and SN-classified base oils generally have low polycyclic aromatic content, under 3% PCA (Repsol, undated).
What are the viscosity, viscosity index, and flash point values of SN 500 base oil?
For a comparable AP/E SN 500 grade, kinematic viscosity at 40°C is 94-98 mm2/s (ASTM D445) and viscosity index is 95 minimum (ASTM D2270); pour point is -6°C maximum (ASTM D97). No flash point figure appears in the cited evidence pack, so none is stated here.
In which sectors and for the production of which products is base oil SN 500 used?
SN 500 and comparable Group I paraffinic base oils are intended for lubricants production (ORLEN, undated). Beyond that stated use, this page does not extend the claim to other sectors or products.
What are the differences between SN 500 and SN 150, SN 350, and SN 650?
The evidence pack cited on this page does not include published viscosity or pour point figures for SN 150, SN 350 or SN 650, so no direct comparison is given here. Request each grade's own certificate of analysis, tested to ASTM D445 and ASTM D2270, to compare them.
How should base oil SN 500 be stored and transported?
Stored in sealed containers and protected from water and other agents, SN base oils do not degrade; commercial shelf life is stated as four years from the date of manufacture (Repsol, undated).
Why buyers work with BHD Group
Two divisions operate under a single accountable house. There is no handoff between a trading desk and a sourcing desk that leaves a buyer chasing an answer — one team owns the order from enquiry to delivery.
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