Strong Match — 88.2% match
based on chemical composition and mechanical property overlap.
ASTM A959 904L (ASTM A959:2011) and IS 6603 X01Ni25Cr20Mo5Cu (IS 6603:2024) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 904L is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while IS 6603 X01Ni25Cr20Mo5Cu is commonly used for general purposes, semi-finished products, bars, wire rods and bright bars.
ASTM A959 904L is defined under ASTM International, originating from United States, while IS 6603 X01Ni25Cr20Mo5Cu is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, ASTM A959 904L vs IS 6603 X01Ni25Cr20Mo5Cu is a 88.2% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a strong match overall at 88.2%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
ASTM A959 904L
IS 6603 X01Ni25Cr20Mo5Cu
Tensile Strength
Not specified
530-730 MPa
Yield Strength
Not specified
>=220 MPa
Elongation
Not specified
>=35%
Condition
Not specified
Solution annealed, conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 160 mm; Yield Strength is Rp0.2, Elongation is A (longitudinal)
Typical Applications
ASTM A959 904L
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
IS 6603 X01Ni25Cr20Mo5Cu
General purposes, semi-finished products, bars, wire rods and bright bars
Can ASTM A959 904L Be Substituted With IS 6603 X01Ni25Cr20Mo5Cu?
ASTM A959 904L and IS 6603 X01Ni25Cr20Mo5Cu overlap closely enough on chemistry and mechanical properties that IS 6603 X01Ni25Cr20Mo5Cu is often considered as a substitute for ASTM A959 904L in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between ASTM A959 904L and IS 6603 X01Ni25Cr20Mo5Cu?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A959 904L be substituted with IS 6603 X01Ni25Cr20Mo5Cu?
ASTM A959 904L and IS 6603 X01Ni25Cr20Mo5Cu overlap closely enough on chemistry and mechanical properties that IS 6603 X01Ni25Cr20Mo5Cu is often considered as a substitute for ASTM A959 904L in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.