Close Alternative — 80.2% match
based on chemical composition and mechanical property overlap.
ASTM A959 630 (ASTM A959:2011) and IS 6911 X15Cr16Ni2 (IS 6911:1992) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 630 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while IS 6911 X15Cr16Ni2 is commonly used for stainless and heat-resisting steel plate, sheet and strip (clause 1.1).
ASTM A959 630 is defined under ASTM International, originating from United States, while IS 6911 X15Cr16Ni2 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, ASTM A959 630 vs IS 6911 X15Cr16Ni2 is a 80.2% 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 80.2%.
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 630
IS 6911 X15Cr16Ni2
Elongation (50 mm, annealed)
Not specified
>=10%
Hardness (annealed, max)
Not specified
262 HBS
Tensile Strength (annealed)
Not specified
>=830 MPa
Yield Strength (0.2% proof, annealed)
Not specified
>=640 MPa
Typical Applications
ASTM A959 630
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
IS 6911 X15Cr16Ni2
Stainless and heat-resisting steel plate, sheet and strip (clause 1.1)
Key Differences
ASTM A959 630 specifies Cb, Cu which are not specified for IS 6911 X15Cr16Ni2.
Can ASTM A959 630 Be Substituted With IS 6911 X15Cr16Ni2?
ASTM A959 630 and IS 6911 X15Cr16Ni2 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 A959 630 and IS 6911 X15Cr16Ni2?
ASTM A959 630 specifies Cb, Cu which are not specified for IS 6911 X15Cr16Ni2.
Can ASTM A959 630 be substituted with IS 6911 X15Cr16Ni2?
ASTM A959 630 and IS 6911 X15Cr16Ni2 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.