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