Strong Match — 100% match
based on chemical composition and mechanical property overlap.
ASTM A959 SS310 (ASTM A959:2011) and IS 6603 X12Cr25Ni20 (IS 6603:2024) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 SS310 is typically used for furnace parts, heat exchangers, kiln components, while IS 6603 X12Cr25Ni20 is commonly used for general purposes, semi-finished products, bars, wire rods and bright bars.
ASTM A959 SS310 is defined under ASTM International, originating from United States, while IS 6603 X12Cr25Ni20 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, ASTM A959 SS310 vs IS 6603 X12Cr25Ni20 is a 100% 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 100%.
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 SS310
IS 6603 X12Cr25Ni20
Tensile Strength
Not specified
500-700 MPa
Yield Strength
Not specified
>=210 MPa
Elongation
Not specified
>=35%
Condition
Not specified
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 A959 SS310
Furnace parts, heat exchangers, kiln components
IS 6603 X12Cr25Ni20
General purposes, semi-finished products, bars, wire rods and bright bars
Can ASTM A959 SS310 Be Substituted With IS 6603 X12Cr25Ni20?
ASTM A959 SS310 and IS 6603 X12Cr25Ni20 overlap closely enough on chemistry and mechanical properties that IS 6603 X12Cr25Ni20 is often considered as a substitute for ASTM A959 SS310 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 SS310 and IS 6603 X12Cr25Ni20?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A959 SS310 be substituted with IS 6603 X12Cr25Ni20?
ASTM A959 SS310 and IS 6603 X12Cr25Ni20 overlap closely enough on chemistry and mechanical properties that IS 6603 X12Cr25Ni20 is often considered as a substitute for ASTM A959 SS310 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.