Compatibility Atlas

Carbon Steel vs Duplex 2205for Crude Oil

Which valve material handles Crude Oil better — a side-by-side of compatibility ratings and the engineering reasons behind them.

Verdict

For Crude Oil valve service, Duplex 2205 is the better choice — rated Excellent versus Good for Carbon Steel.

Carbon Steel

Good

Standard for sweet crude. NACE MR0175 hardness limits for sour service.

All fluids Carbon Steel handles →

Duplex 2205

Excellent

Sour crude with H₂S - superior to 316L with better H₂S cracking resistance.

All fluids Duplex 2205 handles →

Ratings and notes are drawn from the Crude Oil service guide. Confirm against concentration, temperature and velocity.

Related comparisons

SS 316L vs Duplex 2205 for SeawaterCarbon Steel vs Duplex 2205 for SeawaterCarbon Steel vs SS 316L for Sulphuric Acid (H₂SO₄)SS 316L vs Duplex 2205 for Crude Oil
Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026

Connected Engineering

Materials
A216 WCB Carbon SteelSuper Duplex 2507
Services
Crude Oil
Tools
Material Compatibility

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