Close Alternative — 84.9% match
based on chemical composition and mechanical property overlap.
EN 10084 18NiCr5-4 (EN 10084:2008) and EN 10083-3 35NiCr6 (EN 10083-3:2006) are both steel grades.
Both fall under the Alloy Steel category.
EN 10084 18NiCr5-4 is typically used for case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1), while EN 10083-3 35NiCr6 is commonly used for quenched and tempered, flame or induction hardened machine parts (clause 1).
EN 10084 18NiCr5-4 is defined under European Standard (EN), originating from Europe, while EN 10083-3 35NiCr6 is defined under European Standard (EN), originating from Europe.
As per chemical composition, EN 10084 18NiCr5-4 vs EN 10083-3 35NiCr6 is a 84.2% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a close alternative overall at 84.9%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10084 18NiCr5-4
EN 10083-3 35NiCr6
Condition
Soft annealed
Quenched and tempered (+QT), ruling section d <= 16 mm
Hardenability
+H band at 1.5 mm from the quenched end: 41 to 49 HRC
Not specified
Hardness
Soft annealed: 223 HB max
Soft annealed (+A): 223 HBW max
Elongation
Not specified
12% min
Tensile Strength
Not specified
880 to 1080 MPa
Yield Strength
Not specified
740 MPa min
Typical Applications
EN 10084 18NiCr5-4
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
EN 10083-3 35NiCr6
Quenched and tempered, flame or induction hardened machine parts (clause 1)
Can EN 10084 18NiCr5-4 Be Substituted With EN 10083-3 35NiCr6?
EN 10084 18NiCr5-4 and EN 10083-3 35NiCr6 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
What is the difference between EN 10084 18NiCr5-4 and EN 10083-3 35NiCr6?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10084 18NiCr5-4 be substituted with EN 10083-3 35NiCr6?
EN 10084 18NiCr5-4 and EN 10083-3 35NiCr6 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.