Close Alternative — 84.9% match
based on chemical composition and mechanical property overlap.
IS 6603 X12Cr13S (IS 6603:2024) and ASTM A959 420FSe (ASTM A959:2011) are both steel grades.
Both fall under the Stainless Steel category.
IS 6603 X12Cr13S is typically used for general purposes, semi-finished products, bars, wire rods and bright bars, while ASTM A959 420FSe is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1).
IS 6603 X12Cr13S is defined under Bureau of Indian Standards (IS), originating from India, while ASTM A959 420FSe is defined under ASTM International, originating from United States.
As per chemical composition, IS 6603 X12Cr13S vs ASTM A959 420FSe is a 85.6% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a close alternative overall at 84.9%.
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 X12Cr13S
ASTM A959 420FSe
Tensile Strength
<=880 MPa
Not specified
Hardness
<=262 HB
Not specified
Condition
Soft annealed (+A), conditions 1C, 1E, 1D, 1X, 1G and 2D, all sizes; hardness as printed
Not specified
Typical Applications
IS 6603 X12Cr13S
General purposes, semi-finished products, bars, wire rods and bright bars
ASTM A959 420FSe
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Key Differences
ASTM A959 420FSe specifies Se which is not specified for IS 6603 X12Cr13S.
Can IS 6603 X12Cr13S Be Substituted With ASTM A959 420FSe?
IS 6603 X12Cr13S and ASTM A959 420FSe 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 X12Cr13S and ASTM A959 420FSe?
ASTM A959 420FSe specifies Se which is not specified for IS 6603 X12Cr13S.
Can IS 6603 X12Cr13S be substituted with ASTM A959 420FSe?
IS 6603 X12Cr13S and ASTM A959 420FSe 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.