Close Alternative — 82.4% match
based on chemical composition and mechanical property overlap.
EN 10088-3 X6CrMoS17 (EN 10088-3:2014) and ASTM A959 434 (ASTM A959:2011) are both steel grades.
Both fall under the Stainless Steel category.
EN 10088-3 X6CrMoS17 is typically used for general purposes, semi-finished products, bars, rods, wire, sections and bright products, while ASTM A959 434 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1).
EN 10088-3 X6CrMoS17 is defined under European Standard (EN), originating from Europe, while ASTM A959 434 is defined under ASTM International, originating from United States.
As per chemical composition, EN 10088-3 X6CrMoS17 vs ASTM A959 434 is a 82.4% 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 82.4%.
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 X6CrMoS17
ASTM A959 434
Tensile Strength
430-630 MPa
Not specified
Yield Strength
>=250 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 100 mm; Yield Strength is Rp0.2, Elongation is A (longitudinal), hardness for guidance only
Not specified
Typical Applications
EN 10088-3 X6CrMoS17
General purposes, semi-finished products, bars, rods, wire, sections and bright products
ASTM A959 434
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Can EN 10088-3 X6CrMoS17 Be Substituted With ASTM A959 434?
EN 10088-3 X6CrMoS17 and ASTM A959 434 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 X6CrMoS17 and ASTM A959 434?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10088-3 X6CrMoS17 be substituted with ASTM A959 434?
EN 10088-3 X6CrMoS17 and ASTM A959 434 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.