Strong Match — 87.6% match
based on chemical composition and mechanical property overlap.
EN 10084 20MnCr5 (EN 10084:2008) and EN 10084 28Cr4 (EN 10084:2008) are both steel grades.
Both fall under the Alloy Steel category.
EN 10084 20MnCr5 is typically used for gears, shafts, cams, case hardened parts, while EN 10084 28Cr4 is commonly used for case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1).
EN 10084 20MnCr5 is defined under European Standard (EN), originating from Europe, while EN 10084 28Cr4 is defined under European Standard (EN), originating from Europe.
As per chemical composition, EN 10084 20MnCr5 vs EN 10084 28Cr4 is a 81.4% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 87.6%.
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 20MnCr5
EN 10084 28Cr4
Condition
Soft annealed
Soft annealed
Hardenability
+H band at 1.5 mm from the quenched end: 41 to 49 HRC
+H band at 1.5 mm from the quenched end: 45 to 53 HRC
Hardness
Soft annealed: 217 HB max
Soft annealed: 217 HB max
Typical Applications
EN 10084 20MnCr5
Gears, shafts, cams, case hardened parts
EN 10084 28Cr4
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
Can EN 10084 20MnCr5 Be Substituted With EN 10084 28Cr4?
EN 10084 20MnCr5 and EN 10084 28Cr4 overlap closely enough on chemistry and mechanical properties that EN 10084 28Cr4 is often considered as a substitute for EN 10084 20MnCr5 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 20MnCr5 and EN 10084 28Cr4?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10084 20MnCr5 be substituted with EN 10084 28Cr4?
EN 10084 20MnCr5 and EN 10084 28Cr4 overlap closely enough on chemistry and mechanical properties that EN 10084 28Cr4 is often considered as a substitute for EN 10084 20MnCr5 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.