Close Alternative — 71.3% match
based on chemical composition and mechanical property overlap.
EN 10088-3 X2CrNbCu21 (EN 10088-3:2014) and ASTM A959 S44535 (ASTM A959:2011) are both steel grades.
Both fall under the Stainless Steel category.
EN 10088-3 X2CrNbCu21 is typically used for general purposes, semi-finished products, bars, rods, wire, sections and bright products, while ASTM A959 S44535 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1).
EN 10088-3 X2CrNbCu21 is defined under European Standard (EN), originating from Europe, while ASTM A959 S44535 is defined under ASTM International, originating from United States.
As per chemical composition, EN 10088-3 X2CrNbCu21 vs ASTM A959 S44535 is a 71.3% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a close alternative overall at 71.3%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10088-3 X2CrNbCu21
ASTM A959 S44535
Tensile Strength
420-640 MPa
Not specified
Yield Strength
>=240 MPa
Not specified
Elongation
>=20%
Not specified
Hardness
<=200 HB
Not specified
Condition
Annealed (+A), conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 50 mm; Yield Strength is Rp0.2, Elongation is A (longitudinal), hardness for guidance only
Not specified
Typical Applications
EN 10088-3 X2CrNbCu21
General purposes, semi-finished products, bars, rods, wire, sections and bright products
ASTM A959 S44535
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
EN 10088-3 X2CrNbCu21 specifies N, Nb which are not specified for ASTM A959 S44535.
ASTM A959 S44535 specifies Al, La, Ti which are not specified for EN 10088-3 X2CrNbCu21.
Can EN 10088-3 X2CrNbCu21 Be Substituted With ASTM A959 S44535?
EN 10088-3 X2CrNbCu21 and ASTM A959 S44535 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
What is the difference between EN 10088-3 X2CrNbCu21 and ASTM A959 S44535?
EN 10088-3 X2CrNbCu21 specifies N, Nb which are not specified for ASTM A959 S44535. ASTM A959 S44535 specifies Al, La, Ti which are not specified for EN 10088-3 X2CrNbCu21.
Can EN 10088-3 X2CrNbCu21 be substituted with ASTM A959 S44535?
EN 10088-3 X2CrNbCu21 and ASTM A959 S44535 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.