Sulphuric Acid (H₂SO₄) service
Material Compatibility

Carbon Steel for Sulphuric Acid (H₂SO₄)

Is Carbon Steel the right valve material for Sulphuric Acid (H₂SO₄)? The engineering rating, the conditions that limit it, and the better alternatives.

Good

Is Carbon Steel compatible with Sulphuric Acid (H₂SO₄)?

For Sulphuric Acid (H₂SO₄) (H₂SO₄) valve service, Carbon Steel is good — a good choice. Only for >93% concentrated acid at ambient temperature. Not for dilute acid.

Better materials for Sulphuric Acid (H₂SO₄)

Higher-rated options for this service, from the compatibility data.

Hastelloy C-276ExcellentPTFE-linedExcellentFRP / PVDF-linedGood

All rated materials for Sulphuric Acid (H₂SO₄)

Hastelloy C-276ExcellentPTFE-linedExcellentFRP / PVDF-linedGoodSS 316LFairDuplex 2205FairDuctile IronPoorBronze/BrassNot Recommended
Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026

Connected Engineering

Materials
A216 WCB Carbon SteelA351 CF8M (SS316)Hastelloy C-276
Services
Sulphuric Acid
Tools
Material Compatibility

Need Carbon Steel valves for Sulphuric Acid (H₂SO₄)?

Send your concentration, temperature and pressure — we confirm Carbon Steel suitability for Sulphuric Acid (H₂SO₄) (or recommend an upgrade) and supply with full certification.

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Engineering references

Sulphuric Acid (H₂SO₄) service guideFull compatibility, valves & standardsCarbon Steel compatibilityEvery fluid this material handlesCompatibility AtlasThe full material x fluid matrix