Designation Cross-Reference

X2CrNiMoN22-5-3 — ASTM Equivalent

Holding a datasheet that specifies X2CrNiMoN22-5-3 (EN)? The valve-grade equivalent, its properties, and certified supply of the matching ASTM grade.

What is the ASTM equivalent of X2CrNiMoN22-5-3?

X2CrNiMoN22-5-3 is a EN designation corresponding to ASTM A995 CD4MCu / A890 4A (Duplex SS Cast (CD4MCu)) and A182 F51 (Forged Duplex 2205 (F51)) and A182 F60 (Duplex 2205 Forged (Grade F60)) for industrial valve service. The full grade data is below - equivalence is by nominal chemistry and mechanical class, so confirm composition and heat-treat condition against the governing standard before substituting in critical service.

A995 CD4MCu / A890 4A

Duplex & Super Duplex

Duplex SS Cast (CD4MCu) - cast form.

Service temperature-40°C to +300°C

Nominal compositionCr 21.0–23.5%, Ni 4.5–6.5%, Mo 2.5–3.5%, N 0.10–0.30%, Cu 0.20–0.80%. Duplex ferrite-austenite microstructure.

Typical service: Seawater systems - offshore platforms, FPSO, desalination; High-chloride brine and produced water; HCl service (limited concentrations)

Also designated:1.4470 [EN]X2CrNiMoN22-5-3 [EN]22-5-3N [ISO]

A182 F51

Duplex & Super Duplex

Forged Duplex 2205 (F51) - forged form.

Service temperature-40°C to +300°C

Nominal compositionCr 21.0–23.0%, Ni 4.5–6.5%, Mo 2.5–3.5%, N 0.08–0.20%. UNS S31803.

Typical service: Offshore instrument hook-up (seawater, produced water); High-chloride chemical service; NACE sour service

Also designated:1.4462 (X2CrNiMoN22-5-3) [EN]

A182 F60

Duplex & Super Duplex

Duplex 2205 Forged (Grade F60) - forged form.

Service temperature-46°C to +315°C

Nominal compositionC ≤ 0.03%, Mn ≤ 2.00%, Si ≤ 1.00%, Cr 21.00–23.00%, Ni 4.50–6.50%, Mo 2.50–3.50%, N 0.08–0.20%

Typical service: FPSO and offshore platform topside valves - seawater injection, produced water; Chemical injection pump discharge valves - biocide, corrosion inhibitor, methanol injection; Desalination high-pressure seawater feed valves (SWRO membrane inlet)

Also designated:S31803 [UNS]S32205 [UNS]1.4462 (X2CrNiMoN22-5-3) [EN]X2CrNiMoN22-5-3 [DIN]

Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026

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Need valves in X2CrNiMoN22-5-3 / its ASTM equivalent?

We supply A995 CD4MCu / A890 4A / A182 F51 / A182 F60 valves - the X2CrNiMoN22-5-3 equivalent - with EN 10204 3.1 material certification. Share the datasheet for a 24-hour quote.

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Engineering references

A995 CD4MCu / A890 4A full grade pageDuplex SS Cast (CD4MCu)A182 F51 full grade pageForged Duplex 2205 (F51)Equivalence MatrixAll 43 grades across 7 systems Designation lookup directoryEvery foreign designation indexed