ASTM A240/A240M N08904 vs IS 6603 X01Ni25Cr20Mo5Cu
Close Alternative — 80.7% match
based on chemical composition and mechanical property overlap.
ASTM A240/A240M N08904 (ASTM A240/A240M:2025) and IS 6603 X01Ni25Cr20Mo5Cu (IS 6603:2024) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A240/A240M N08904 is typically used for pressure vessels and general applications (plate, sheet and strip), while IS 6603 X01Ni25Cr20Mo5Cu is commonly used for general purposes, semi-finished products, bars, wire rods and bright bars.
ASTM A240/A240M N08904 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 A240/A240M N08904 vs IS 6603 X01Ni25Cr20Mo5Cu 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%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
ASTM A240/A240M N08904
IS 6603 X01Ni25Cr20Mo5Cu
Tensile Strength
>=490 MPa
530-730 MPa
Yield Strength
>=220 MPa
>=220 MPa
Elongation
>=35%
>=35%
Hardness
<=90 HRBW
Not specified
Condition
Plate, sheet and strip; yield by 0.2 percent offset
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 A240/A240M N08904
Pressure vessels and general applications (plate, sheet and strip)
IS 6603 X01Ni25Cr20Mo5Cu
General purposes, semi-finished products, bars, wire rods and bright bars
Can ASTM A240/A240M N08904 Be Substituted With IS 6603 X01Ni25Cr20Mo5Cu?
ASTM A240/A240M N08904 and IS 6603 X01Ni25Cr20Mo5Cu 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 ASTM A240/A240M N08904 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 A240/A240M N08904 be substituted with IS 6603 X01Ni25Cr20Mo5Cu?
ASTM A240/A240M N08904 and IS 6603 X01Ni25Cr20Mo5Cu 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.