Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6) service
Material Compatibility
Ductile Iron for Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6)
Is Ductile Iron the right valve material for Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6)? The engineering rating, the conditions that limit it, and the better alternatives.
Good
Is Ductile Iron compatible with Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6)?
For Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6) (Complex hydrocarbons (C₂₀–C₅₀)) valve service, Ductile Iron is good — a good choice. Acceptable for lower-pressure HFO service in marine applications.
Better materials for Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6)
Higher-rated options for this service, from the compatibility data.
All rated materials for Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6)
Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026
Connected Engineering
Need Ductile Iron valves for Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6)?
Send your concentration, temperature and pressure — we confirm Ductile Iron suitability for Heavy Fuel Oil (HFO / Bunker C / Fuel Oil No. 6) (or recommend an upgrade) and supply with full certification.
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