Close Alternative — 81.5% match
based on chemical composition and mechanical property overlap.
ASTM A240/A240M S31803 (ASTM A240/A240M:2025) and IS 6603 X02Cr22Ni5Mo3N (IS 6603:2024) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A240/A240M S31803 is typically used for pressure vessels and general applications (plate, sheet and strip), while IS 6603 X02Cr22Ni5Mo3N is commonly used for general purposes, semi-finished products, bars, wire rods and bright bars.
ASTM A240/A240M S31803 is defined under ASTM International, originating from United States, while IS 6603 X02Cr22Ni5Mo3N is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, ASTM A240/A240M S31803 vs IS 6603 X02Cr22Ni5Mo3N is a 97.3% match.
As per mechanical properties, the match is 50%.
Combined, this makes them a close alternative overall at 81.5%.
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 S31803
IS 6603 X02Cr22Ni5Mo3N
Tensile Strength
>=620 MPa
>=650 MPa
Yield Strength
>=450 MPa
>=450 MPa
Elongation
>=25%
>=25%
Hardness
<=293 HB
<=290 HB
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; Tensile Strength is a minimum as printed, hardness for guidance only
Typical Applications
ASTM A240/A240M S31803
Pressure vessels and general applications (plate, sheet and strip)
IS 6603 X02Cr22Ni5Mo3N
General purposes, semi-finished products, bars, wire rods and bright bars
Can ASTM A240/A240M S31803 Be Substituted With IS 6603 X02Cr22Ni5Mo3N?
ASTM A240/A240M S31803 and IS 6603 X02Cr22Ni5Mo3N 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 S31803 and IS 6603 X02Cr22Ni5Mo3N?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A240/A240M S31803 be substituted with IS 6603 X02Cr22Ni5Mo3N?
ASTM A240/A240M S31803 and IS 6603 X02Cr22Ni5Mo3N 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.