Related Material — 69.9% match
based on chemical composition and mechanical property overlap.
ASTM A959 S38400 (ASTM A959:2011) and IS 1570 (Part 7) 3Cr18Ni11H (IS 1570 (Part 7):1992) are both steel grades.
Both fall under the Stainless Steel category.
ASTM A959 S38400 is typically used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1), while IS 1570 (Part 7) 3Cr18Ni11H is commonly used for boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature.
ASTM A959 S38400 is defined under ASTM International, originating from United States, while IS 1570 (Part 7) 3Cr18Ni11H is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, ASTM A959 S38400 vs IS 1570 (Part 7) 3Cr18Ni11H is a 81.3% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a related material overall at 69.9%.
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 S38400
IS 1570 (Part 7) 3Cr18Ni11H
Tensile Strength
Not specified
490-690 MPa
Yield Strength
Not specified
>=175 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 S38400
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
IS 1570 (Part 7) 3Cr18Ni11H
Boilers, pressure vessels, steam turbines, steam and water piping and other power plant equipment working at elevated temperature
Can ASTM A959 S38400 Be Substituted With IS 1570 (Part 7) 3Cr18Ni11H?
ASTM A959 S38400 and IS 1570 (Part 7) 3Cr18Ni11H share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
What is the difference between ASTM A959 S38400 and IS 1570 (Part 7) 3Cr18Ni11H?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A959 S38400 be substituted with IS 1570 (Part 7) 3Cr18Ni11H?
ASTM A959 S38400 and IS 1570 (Part 7) 3Cr18Ni11H share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.