EURABELT CUSTODIAL ORDER · UNITY · SECRECY · CUSTODIANSHIP UK · Company number 16639303 UK · NATO NCAGE U2E57 UK · SAM.gov UEI E1JDP3L371Y7 UK · EORI GB044314644000 UK · ICO data controller ZC076060 CA · Corporation number 17303785 CA · NATO NCAGE L11R0 CA · SAM.gov UEI E2LRX73E1YY5 TT · Company number 10017296 TT · NATO NCAGE STDY6 TT · SAM.gov UEI E34CYFW5MR93 ZA · Registration number K2025/850330/07 ZA · NATO NCAGE STDZ3 ZA · SAM.gov UEI E3N2GFF8FQG1 CHARTER MMXXIV — MMCXXIV
Seal of the Eurabelt Custodial Order Eurabelt FuelsTHE CUSTODIAL ORDER
Verify
Fuel Oils

Fuel Oil 380 CST

Heavy fuel oil widely used for large marine vessel propulsion.

Custodian notice. Eurabelt Fuels Ltd does NOT own or supply this product. We verify buyers and sellers and introduce verified parties to one another; the parties transact. Specifications shown are industry standards; actual product details depend on the seller.

Product overview

Fuel Oil 380 CST is a heavy marine fuel oil with viscosity of 380 centistokes at 50°C. It was historically the dominant bunker fuel for large ocean-going vessels before IMO 2020 regulations. It requires heating for pumping and atomization in combustion systems.

CST380 Fuel Oils

Technical specifications

The following specifications represent typical industry standards for Fuel Oil 380 CST. Actual specifications may vary by producer and should be confirmed with the seller.

Technical specifications of Fuel Oil 380 CST
ParameterSpecification
Density @ 15°CMax. 991.0 kg/m³
Flash PointMin. 60°C
Pour Point (Summer)Max. 30°C
Viscosity @ 50°CMax. 380 mm²/s
Sulfur ContentMax. 3.50% mass (HSFO)
Sulfur Content (VLSFO)Max. 0.50% mass
Ash ContentMax. 0.15% mass
Water ContentMax. 0.50% vol
Carbon ResidueMax. 20% mass
VanadiumMax. 450 mg/kg
Aluminum + SiliconMax. 80 mg/kg
CCAIMax. 870
Industry‑standard reference information · Eurabelt Fuels Ltd · Custodian of the Eurabelt verification system

Industry standards & certifications

This product is typically produced in accordance with the following international standards:

  • ISO 8217:2017 RMK 380Marine Residual Fuel Standard
  • IMO MARPOL Annex VISulfur Regulations
  • SOLAS II-2Fire Safety (Flash Point)
  • IMO 2020Global Sulfur Cap Compliance

Common applications

  • Large container ships
  • Bulk carriers
  • Tankers
  • Cruise ships (with scrubbers)
  • Power barges
  • Industrial boilers

Packaging & delivery options

Verified sellers in our network typically offer the following delivery methods:

  • Bunker barge (heated)
  • Ship-to-ship transfer
  • Terminal pipeline (heated)
  • Shore tank delivery