No. 6 Residual Fuel Oil
Standard No. 6 fuel oil is a high-viscosity residual product from crude oil distillation, meeting HTS 2710.19.06.30 specs with Saybolt viscosity >125 seconds and low API gravity. Used in industrial boilers and power generation.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If blended with distillate components exceeding viscosity limits
Blended fuel oils with lower viscosity may classify under lighter fuel oil subheadings.
If containing more than 5% by weight of biodiesel
Biodiesel blends over 5% are excluded from this subheading per chapter notes.
If preparation contains less than 70% petroleum oils
Preparations with under 70% petroleum content fall into the residual 2710.99 category.
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Import Tips & Compliance
• Submit flash point test results (ASTM D-93) as No. 6 typically exceeds 66°C; confirm 70%+ petroleum oil content via assay report; watch for blending requirements affecting classification
Related Products under HTS 2710.19.06.30
Bunker C Fuel Oil
Bunker C is a heavy residual fuel oil classified as Fuel Oil No. 6 under HTS 2710.19.06.30 due to its API gravity under 25 degrees and Saybolt Universal viscosity exceeding 125 seconds at 37.8°C. It is primarily used as marine bunker fuel for large oceangoing vessels.
Heavy Fuel Oil 380 cSt
IFO 380 (Intermediate Fuel Oil with 380 centistokes viscosity at 50°C) qualifies as Fuel Oil No. 6 under HTS 2710.19.06.30 when meeting the Saybolt viscosity >125 sec at 37.8°C and sub-25° API criteria. Common in international shipping bunkers.
Industrial Boiler Fuel Oil No. 6
Heavy residual fuel oil No. 6 formulated for large industrial boilers, classified under HTS 2710.19.06.30 for its high viscosity (>125 SUS at 37.8°C) and density (API <25°). Provides high BTU content for manufacturing processes.
Power Plant Residual Fuel Oil
No. 6 fuel oil specification for utility-scale power generation, meeting HTS 2710.19.06.30 with required low API gravity and high Saybolt viscosity. Economical baseload fuel for coal-alternative combustion.