ASTM A240/A240M S31254 vs IS 6603 X01Cr20Ni18Mo6CuN
Close Alternative — 73.7% match
based on chemical composition and mechanical property overlap.
ASTM A240/A240M S31254 (ASTM A240/A240M:2025) and IS 6603 X01Cr20Ni18Mo6CuN (IS 6603:2024) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A240/A240M S31254 is typically used for pressure vessels and general applications (plate, sheet and strip), while IS 6603 X01Cr20Ni18Mo6CuN is commonly used for general purposes, semi-finished products, bars, wire rods and bright bars.
ASTM A240/A240M S31254 is defined under ASTM International, originating from United States, while IS 6603 X01Cr20Ni18Mo6CuN is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, ASTM A240/A240M S31254 vs IS 6603 X01Cr20Ni18Mo6CuN is a 93.8% match.
As per mechanical properties, the match is 33.3%.
Combined, this makes them a close alternative overall at 73.7%.
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 S31254
IS 6603 X01Cr20Ni18Mo6CuN
Tensile Strength
>=690 MPa
650-850 MPa
Yield Strength
>=310 MPa
>=300 MPa
Elongation
>=35%
>=35%
Hardness
<=223 HB
Not specified
Condition
Sheet and strip (first condition printed); 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 S31254
Pressure vessels and general applications (plate, sheet and strip)
IS 6603 X01Cr20Ni18Mo6CuN
General purposes, semi-finished products, bars, wire rods and bright bars
Can ASTM A240/A240M S31254 Be Substituted With IS 6603 X01Cr20Ni18Mo6CuN?
ASTM A240/A240M S31254 and IS 6603 X01Cr20Ni18Mo6CuN 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 S31254 and IS 6603 X01Cr20Ni18Mo6CuN?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A240/A240M S31254 be substituted with IS 6603 X01Cr20Ni18Mo6CuN?
ASTM A240/A240M S31254 and IS 6603 X01Cr20Ni18Mo6CuN 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.