IS 6603 X01Ni25Cr20Mo5Cu vs ASTM A240/A240M N08904
Close Alternative — 80.7% match
based on chemical composition and mechanical property overlap.
IS 6603 X01Ni25Cr20Mo5Cu (IS 6603:2024) and ASTM A240/A240M N08904 (ASTM A240/A240M:2025) are both steel grades.
Both fall under the Stainless Steel category.
IS 6603 X01Ni25Cr20Mo5Cu is typically used for general purposes, semi-finished products, bars, wire rods and bright bars, while ASTM A240/A240M N08904 is commonly used for pressure vessels and general applications (plate, sheet and strip).
IS 6603 X01Ni25Cr20Mo5Cu is defined under Bureau of Indian Standards (IS), originating from India, while ASTM A240/A240M N08904 is defined under ASTM International, originating from United States.
As per chemical composition, IS 6603 X01Ni25Cr20Mo5Cu vs ASTM A240/A240M N08904 is a 87.7% match.
As per mechanical properties, the match is 66.7%.
Combined, this makes them a close alternative overall at 80.7%.
Frequently Compared With IS 6603 X01Ni25Cr20Mo5Cu:
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 6603 X01Ni25Cr20Mo5Cu
ASTM A240/A240M N08904
Tensile Strength
530-730 MPa
>=490 MPa
Yield Strength
>=220 MPa
>=220 MPa
Elongation
>=35%
>=35%
Condition
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)
Plate, sheet and strip; yield by 0.2 percent offset
Hardness
Not specified
<=90 HRBW
Typical Applications
IS 6603 X01Ni25Cr20Mo5Cu
General purposes, semi-finished products, bars, wire rods and bright bars
ASTM A240/A240M N08904
Pressure vessels and general applications (plate, sheet and strip)
Can IS 6603 X01Ni25Cr20Mo5Cu Be Substituted With ASTM A240/A240M N08904?
IS 6603 X01Ni25Cr20Mo5Cu and ASTM A240/A240M N08904 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 IS 6603 X01Ni25Cr20Mo5Cu and ASTM A240/A240M N08904?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 6603 X01Ni25Cr20Mo5Cu be substituted with ASTM A240/A240M N08904?
IS 6603 X01Ni25Cr20Mo5Cu and ASTM A240/A240M N08904 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.