Liquid Nitrogen (LN₂) service
Material Compatibility

Carbon Steel for Liquid Nitrogen (LN₂)

Is Carbon Steel the right valve material for Liquid Nitrogen (LN₂)? The engineering rating, the conditions that limit it, and the better alternatives.

Not Recommended

Is Carbon Steel compatible with Liquid Nitrogen (LN₂)?

For Liquid Nitrogen (LN₂) (N₂(l)) valve service, Carbon Steel is not recommended — not recommended. Brittle fracture risk below −29°C. Never use for cryogenic LN₂ service.

Better materials for Liquid Nitrogen (LN₂)

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

SS 316LExcellentAluminium alloysExcellentA352 LCB/LCC (LTCS)GoodA350 LF2GoodBronze/BrassGood

All rated materials for Liquid Nitrogen (LN₂)

SS 316LExcellentAluminium alloysExcellentA352 LCB/LCC (LTCS)GoodA350 LF2GoodBronze/BrassGood
Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026

Connected Engineering

Materials
A216 WCB Carbon SteelA351 CF8M (SS316)A352 LCC Low-Temp
Tools
Material Compatibility

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Engineering references

Liquid Nitrogen (LN₂) service guideFull compatibility, valves & standardsCarbon Steel compatibilityEvery fluid this material handlesCompatibility AtlasThe full material x fluid matrix