Close Alternative — 84.9% match
based on chemical composition and mechanical property overlap.
EN 10083-3 35NiCr6 (EN 10083-3:2006) and EN 10084 18NiCr5-4 (EN 10084:2008) are both steel grades.
Both fall under the Alloy Steel category.
EN 10083-3 35NiCr6 is typically used for quenched and tempered, flame or induction hardened machine parts (clause 1), while EN 10084 18NiCr5-4 is commonly used for case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1).
EN 10083-3 35NiCr6 is defined under European Standard (EN), originating from Europe, while EN 10084 18NiCr5-4 is defined under European Standard (EN), originating from Europe.
As per chemical composition, EN 10083-3 35NiCr6 vs EN 10084 18NiCr5-4 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 10083-3 35NiCr6
EN 10084 18NiCr5-4
Condition
Quenched and tempered (+QT), ruling section d <= 16 mm
Soft annealed
Elongation
12% min
Not specified
Hardness
Soft annealed (+A): 223 HBW max
Soft annealed: 223 HB max
Tensile Strength
880 to 1080 MPa
Not specified
Yield Strength
740 MPa min
Not specified
Hardenability
Not specified
+H band at 1.5 mm from the quenched end: 41 to 49 HRC
Typical Applications
EN 10083-3 35NiCr6
Quenched and tempered, flame or induction hardened machine parts (clause 1)
EN 10084 18NiCr5-4
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
Can EN 10083-3 35NiCr6 Be Substituted With EN 10084 18NiCr5-4?
EN 10083-3 35NiCr6 and EN 10084 18NiCr5-4 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 10083-3 35NiCr6 and EN 10084 18NiCr5-4?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10083-3 35NiCr6 be substituted with EN 10084 18NiCr5-4?
EN 10083-3 35NiCr6 and EN 10084 18NiCr5-4 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.