Strong Match — 94.8% match
based on chemical composition and mechanical property overlap.
IS 11169 (Part 2) X04Cr18Ni11 (IS 11169 (Part 2):2023) and ASTM A959 321 (ASTM A959:2011) are both steel grades.
Both fall under the Stainless Steel category.
IS 11169 (Part 2) X04Cr18Ni11 is typically used for cold heading and cold extrusion of stainless steel parts; the standard covers wires, wire rods and bars of 0.8 to 50 mm (clause 1.1, table 11), while ASTM A959 321 is commonly used for wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1).
IS 11169 (Part 2) X04Cr18Ni11 is defined under Bureau of Indian Standards (IS), originating from India, while ASTM A959 321 is defined under ASTM International, originating from United States.
As per chemical composition, IS 11169 (Part 2) X04Cr18Ni11 vs ASTM A959 321 is a 94.8% 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 94.8%.
Frequently Compared With IS 11169 (Part 2) X04Cr18Ni11:
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 11169 (Part 2) X04Cr18Ni11
ASTM A959 321
Reduction of Area, solution annealed (+AT)
>=65% (over 5 to 50 mm)
Not specified
Tensile Strength, solution annealed (+AT)
<=650 MPa (over 5 to 50 mm)
Not specified
Typical Applications
IS 11169 (Part 2) X04Cr18Ni11
Cold heading and cold extrusion of stainless steel parts; the standard covers wires, wire rods and bars of 0.8 to 50 mm (clause 1.1, Table 11)
ASTM A959 321
Wrought stainless steel products; recommended composition limits for adoption by product standards (clause 1.1)
Can IS 11169 (Part 2) X04Cr18Ni11 Be Substituted With ASTM A959 321?
IS 11169 (Part 2) X04Cr18Ni11 and ASTM A959 321 overlap closely enough on chemistry and mechanical properties that ASTM A959 321 is often considered as a substitute for IS 11169 (Part 2) X04Cr18Ni11 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 11169 (Part 2) X04Cr18Ni11 and ASTM A959 321?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 11169 (Part 2) X04Cr18Ni11 be substituted with ASTM A959 321?
IS 11169 (Part 2) X04Cr18Ni11 and ASTM A959 321 overlap closely enough on chemistry and mechanical properties that ASTM A959 321 is often considered as a substitute for IS 11169 (Part 2) X04Cr18Ni11 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.