1.4538 — ASTM Equivalent
Holding a datasheet that specifies 1.4538 (EN)? The valve-grade equivalent, its properties, and certified supply of the matching ASTM grade.
What is the ASTM equivalent of 1.4538?
1.4538 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.
A351 CN7M / ASTM A182 (Alloy 20 / Carpenter 20)
Nickel AlloysAlloy 20 (Carpenter 20Cb-3) - both form.
Typical service: Sulphuric acid (H₂SO₄) at all concentrations: dilute, concentrated, oleum; Phosphoric acid manufacturing; Fertilizer and ammonium sulphate plants
Connected Engineering
Need valves in 1.4538 / its ASTM equivalent?
We supply A351 CN7M / ASTM A182 (Alloy 20 / Carpenter 20) valves - the 1.4538 equivalent - with EN 10204 3.1 material certification. Share the datasheet for a 24-hour quote.