Close Alternative — 76.8% match
based on chemical composition and mechanical property overlap.
ASTM A959 S41428 (ASTM A959:2011) and IS 1570 (Part 7) 12Cr12Ni2Mo (IS 1570 (Part 7):1992) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 S41428 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while IS 1570 (Part 7) 12Cr12Ni2Mo is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature.
ASTM A959 S41428 is defined under ASTM International, originating from United States, while IS 1570 (Part 7) 12Cr12Ni2Mo is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, ASTM A959 S41428 vs IS 1570 (Part 7) 12Cr12Ni2Mo is a 76.8% 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 76.8%.
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 S41428
IS 1570 (Part 7) 12Cr12Ni2Mo
Tensile Strength
Not specified
930-1130 MPa
Yield Strength
Not specified
>=785 MPa (0.2 % proof stress)
Elongation
Not specified
>=14%
Condition
Not specified
Bars, forgings, Q+T, thickness up to 150 (first row of Table 3)
Typical Applications
ASTM A959 S41428
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
IS 1570 (Part 7) 12Cr12Ni2Mo
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Key Differences
ASTM A959 S41428 specifies Al, Cu, Sn, Ti which are not specified for IS 1570 (Part 7) 12Cr12Ni2Mo.
Can ASTM A959 S41428 Be Substituted With IS 1570 (Part 7) 12Cr12Ni2Mo?
ASTM A959 S41428 and IS 1570 (Part 7) 12Cr12Ni2Mo 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 S41428 and IS 1570 (Part 7) 12Cr12Ni2Mo?
ASTM A959 S41428 specifies Al, Cu, Sn, Ti which are not specified for IS 1570 (Part 7) 12Cr12Ni2Mo.
Can ASTM A959 S41428 be substituted with IS 1570 (Part 7) 12Cr12Ni2Mo?
ASTM A959 S41428 and IS 1570 (Part 7) 12Cr12Ni2Mo 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.