Strong Match — 86.4% match
based on chemical composition and mechanical property overlap.
EN 10084 28CrS4 (EN 10084:2008) and EN 10084 20MnCr5 (EN 10084:2008) are both steel grades.
Both fall under the Alloy Steel category.
EN 10084 28CrS4 is typically used for case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1), while EN 10084 20MnCr5 is commonly used for gears, shafts, cams, case hardened parts.
EN 10084 28CrS4 is defined under European Standard (EN), originating from Europe, while EN 10084 20MnCr5 is defined under European Standard (EN), originating from Europe.
As per chemical composition, EN 10084 28CrS4 vs EN 10084 20MnCr5 is a 79.6% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 86.4%.
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 28CrS4
EN 10084 20MnCr5
Condition
Soft annealed
Soft annealed
Hardenability
+H band at 1.5 mm from the quenched end: 45 to 53 HRC
+H band at 1.5 mm from the quenched end: 41 to 49 HRC
Hardness
Soft annealed: 217 HB max
Soft annealed: 217 HB max
Typical Applications
EN 10084 28CrS4
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
EN 10084 20MnCr5
Gears, shafts, cams, case hardened parts
Can EN 10084 28CrS4 Be Substituted With EN 10084 20MnCr5?
EN 10084 28CrS4 and EN 10084 20MnCr5 overlap closely enough on chemistry and mechanical properties that EN 10084 20MnCr5 is often considered as a substitute for EN 10084 28CrS4 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 EN 10084 28CrS4 and EN 10084 20MnCr5?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10084 28CrS4 be substituted with EN 10084 20MnCr5?
EN 10084 28CrS4 and EN 10084 20MnCr5 overlap closely enough on chemistry and mechanical properties that EN 10084 20MnCr5 is often considered as a substitute for EN 10084 28CrS4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.