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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If viscosity equivalent to 45-125 SUS at 37.8°C
IFO 180 or lower viscosity grades classify in the intermediate heavy fuel oil subheading.
If lubricating oil base stock use
If marketed as bright stock or cylinder oil base rather than fuel, it shifts to lubricating oil provisions.
If petroleum bitumen content dominates
Bituminous mixtures exceeding petroleum oil content move to Chapter 27 heading 2713.
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Import Tips & Compliance
• Provide ISO 8217 fuel specification sheet confirming RMK (residual max kinematic) viscosity; comply with IMO 2020 low-sulfur (0.5%) requirements or VLSFO designation; use continuous bunker monitoring for quality disputes
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.
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.
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.