Strong Match — 99.1% match
based on chemical composition and mechanical property overlap.
IS 6603 X04Cr18Ni10Nb (IS 6603:2024) and EN 10088-3 X6CrNiNb18-10 (EN 10088-3:2014) are both steel grades.
Both fall under the Stainless Steel category.
IS 6603 X04Cr18Ni10Nb is typically used for general purposes, semi-finished products, bars, wire rods and bright bars, while EN 10088-3 X6CrNiNb18-10 is commonly used for general purposes, semi-finished products, bars, rods, wire, sections and bright products.
IS 6603 X04Cr18Ni10Nb is defined under Bureau of Indian Standards (IS), originating from India, while EN 10088-3 X6CrNiNb18-10 is defined under European Standard (EN), originating from Europe.
As per chemical composition, IS 6603 X04Cr18Ni10Nb vs EN 10088-3 X6CrNiNb18-10 is a 98.6% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 99.1%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 6603 X04Cr18Ni10Nb
EN 10088-3 X6CrNiNb18-10
Tensile Strength
510-740 MPa
510-740 MPa
Yield Strength
>=205 MPa
>=205 MPa
Elongation
>=40%
>=40%
Condition
Solution annealed, conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 160 mm; Yield Strength is Rp0.2, Elongation is A (longitudinal)
Solution annealed (+AT), conditions 1C, 1E, 1D, 1X, 1G and 2D, thickness or diameter up to 160 mm; Yield Strength is Rp0.2, Elongation is A (longitudinal), hardness for guidance only
Hardness
Not specified
<=230 HB
Typical Applications
IS 6603 X04Cr18Ni10Nb
General purposes, semi-finished products, bars, wire rods and bright bars
EN 10088-3 X6CrNiNb18-10
General purposes, semi-finished products, bars, rods, wire, sections and bright products
Can IS 6603 X04Cr18Ni10Nb Be Substituted With EN 10088-3 X6CrNiNb18-10?
IS 6603 X04Cr18Ni10Nb and EN 10088-3 X6CrNiNb18-10 overlap closely enough on chemistry and mechanical properties that EN 10088-3 X6CrNiNb18-10 is often considered as a substitute for IS 6603 X04Cr18Ni10Nb 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 6603 X04Cr18Ni10Nb and EN 10088-3 X6CrNiNb18-10?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 6603 X04Cr18Ni10Nb be substituted with EN 10088-3 X6CrNiNb18-10?
IS 6603 X04Cr18Ni10Nb and EN 10088-3 X6CrNiNb18-10 overlap closely enough on chemistry and mechanical properties that EN 10088-3 X6CrNiNb18-10 is often considered as a substitute for IS 6603 X04Cr18Ni10Nb in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.