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X1NiCrMoCuN32-20-7 — ASTM Equivalent

Holding a datasheet that specifies X1NiCrMoCuN32-20-7 (EN)? The valve-grade equivalent, its properties, and certified supply of the matching ASTM grade.

What is the ASTM equivalent of X1NiCrMoCuN32-20-7?

X1NiCrMoCuN32-20-7 is a EN designation corresponding to ASTM A351 CN7M / ASTM A182 (Alloy 20 / Carpenter 20) (Alloy 20 (Carpenter 20Cb-3)) 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.

Alloy 20 (Carpenter 20Cb-3) - both form.

Service temperature-29°C to +370°C
Nominal compositionNi 32–38%, Cr 19–21%, Cu 3–4%, Mo 2–3%, Nb 8×C to 1.0%, Fe balance. UNS N08020.

Typical service: Sulphuric acid (H₂SO₄) at all concentrations: dilute, concentrated, oleum; Phosphoric acid manufacturing; Fertilizer and ammonium sulphate plants

Also designated:N08020 [UNS]X1NiCrMoCuN32-20-7 [EN]1.4538 [EN]
Reviewed by Materials Engineering, Vajra Industrial SolutionsDiscipline: Valve Metallurgy & Materials SelectionLast reviewed: 20 June 2026

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Need valves in X1NiCrMoCuN32-20-7 / its ASTM equivalent?

We supply A351 CN7M / ASTM A182 (Alloy 20 / Carpenter 20) valves - the X1NiCrMoCuN32-20-7 equivalent - with EN 10204 3.1 material certification. Share the datasheet for a 24-hour quote.

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