Strong Match — 93.8% match
based on chemical composition and mechanical property overlap.
ASTM A959 304H (ASTM A959:2011) and IS 1570 (Part 7) 7Cr18Ni10H (IS 1570 (Part 7):1992) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 304H is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while IS 1570 (Part 7) 7Cr18Ni10H is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature.
ASTM A959 304H is defined under ASTM International, originating from United States, while IS 1570 (Part 7) 7Cr18Ni10H is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, ASTM A959 304H vs IS 1570 (Part 7) 7Cr18Ni10H is a 93.8% 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 93.8%.
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 304H
IS 1570 (Part 7) 7Cr18Ni10H
Tensile Strength
Not specified
490-690 MPa
Yield Strength
Not specified
>=195 MPa (0.2 % proof stress)
Elongation
Not specified
>=30%
Condition
Not specified
Tubes, forgings, plates, Q, thickness - (first row of Table 3)
Typical Applications
ASTM A959 304H
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
IS 1570 (Part 7) 7Cr18Ni10H
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Can ASTM A959 304H Be Substituted With IS 1570 (Part 7) 7Cr18Ni10H?
ASTM A959 304H and IS 1570 (Part 7) 7Cr18Ni10H overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 7) 7Cr18Ni10H is often considered as a substitute for ASTM A959 304H 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 304H and IS 1570 (Part 7) 7Cr18Ni10H?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A959 304H be substituted with IS 1570 (Part 7) 7Cr18Ni10H?
ASTM A959 304H and IS 1570 (Part 7) 7Cr18Ni10H overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 7) 7Cr18Ni10H is often considered as a substitute for ASTM A959 304H in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.