Strong Match — 97.3% match
based on chemical composition and mechanical property overlap.
ASTM A959 S31803 (ASTM A959:2011) and IS 6603 X02Cr22Ni5Mo3N (IS 6603:2024) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 S31803 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while IS 6603 X02Cr22Ni5Mo3N is commonly used for general purposes, semi-finished products, bars, wire rods and bright bars.
ASTM A959 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 A959 S31803 vs IS 6603 X02Cr22Ni5Mo3N is a 97.3% 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 97.3%.
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 S31803
IS 6603 X02Cr22Ni5Mo3N
Tensile Strength
Not specified
>=650 MPa
Yield Strength
Not specified
>=450 MPa
Elongation
Not specified
>=25%
Hardness
Not specified
<=290 HB
Condition
Not specified
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 A959 S31803
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
IS 6603 X02Cr22Ni5Mo3N
General purposes, semi-finished products, bars, wire rods and bright bars
Can ASTM A959 S31803 Be Substituted With IS 6603 X02Cr22Ni5Mo3N?
ASTM A959 S31803 and IS 6603 X02Cr22Ni5Mo3N overlap closely enough on chemistry and mechanical properties that IS 6603 X02Cr22Ni5Mo3N is often considered as a substitute for ASTM A959 S31803 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 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 A959 S31803 be substituted with IS 6603 X02Cr22Ni5Mo3N?
ASTM A959 S31803 and IS 6603 X02Cr22Ni5Mo3N overlap closely enough on chemistry and mechanical properties that IS 6603 X02Cr22Ni5Mo3N is often considered as a substitute for ASTM A959 S31803 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.