Petroleum
D6 Fuel Oil (Virgin Fuel Oil / Bunker C)
HS2710.19.68Standard
D6 fuel oil, also referred to as Bunker C, No. 6 fuel oil, or Heavy Fuel Oil (HFO), is the heavy residual fraction remaining after distillation of crude oil, widely used as a boiler fuel, power generation feedstock, and marine bunker fuel in non-ECA zones. Russian D6 fuel oil is sourced from certified Russian refineries operating on Urals blend crude, providing a dense, high-viscosity product with competitive sulphur content and heating value. SFERA LLC supplies D6 fuel oil with full product analysis confirming viscosity, API gravity, flash point, pour point, sulphur, ash content, and water content. D6 is supplied in heated product tankers as the high pour point requires heated storage and transfer systems.
Specifications
| Kinematic viscosity at 50C | 180–380 cSt (ISO 8217 Grade RMG380) |
| API gravity | 9.0–15.0 degrees API |
| Flash point (closed cup) | ≥60C (Pensky-Martens) |
| Pour point | ≤+30C |
| Sulphur content | ≤3.5% mass (High-S) / ≤0.5% (VLSFO) |
| Ash content | ≤0.15% mass |
| Water content | ≤0.5% volume |
| Density at 15C | ≤991 kg/m3 |
| Vanadium (V) | ≤350 mg/kg |
| Aluminium + Silicon | ≤80 mg/kg (cat fines) |
| Quality Assurance | Independent inspection at loading port |
Logistics
| Loading Ports | Primorsk, Ust-Luga, Novorossiysk, Nakhodka, Murmansk |
| Lot Size | 500 MT (ISO tanks) to 100,000 MT (VLCC/Suezmax tanker) |
| Packaging Options | Containers: Heated ISO tanks for smaller parcels — maintain ≥40C |
| Transit Estimate | 5–15 days to Europe/Med; 15–30 days to Asia |
Reference Pricing
⚠ Indicative only. Final CIF price confirmed in your Full Corporate Offer.
Documentation Requirements
- CoO TPP RF
- ISO 8217 analysis cert
- SGS/BV cert
- B/L
- MSDS
- sulphur declaration MARPOL