Close Alternative — 84.2% match
based on chemical composition and mechanical property overlap.
AISI 5120 and EN 10084 16MnCr5 (EN 10084:2008) are both steel grades.
Both fall under the Alloy Steel category.
AISI 5120 is typically used for case hardened gears, pins, shafts, cams, while EN 10084 16MnCr5 is commonly used for gears, camshafts, gudgeon pins.
AISI 5120 is defined under AISI, originating from United States, while EN 10084 16MnCr5 is defined under European Standard (EN), originating from Europe.
As per chemical composition, AISI 5120 vs EN 10084 16MnCr5 is a 76.3% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a close alternative overall at 84.2%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
AISI 5120
EN 10084 16MnCr5
Condition
Carburized & Case Hardened
Soft annealed
Tensile Strength
750–950 MPa
Not specified
Case Hardness HRC
58–62
Not specified
Core Hardness HB
207–269
Not specified
Hardenability
Not specified
+H band at 1.5 mm from the quenched end: 39 to 47 HRC
Hardness
Not specified
Soft annealed: 207 HB max
Typical Applications
AISI 5120
Case hardened gears, pins, shafts, cams
EN 10084 16MnCr5
Gears, camshafts, gudgeon pins
Key Differences
EN 10084 16MnCr5 specifies P, S which are not specified for AISI 5120.
Can AISI 5120 Be Substituted With EN 10084 16MnCr5?
AISI 5120 and EN 10084 16MnCr5 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 AISI 5120 and EN 10084 16MnCr5?
EN 10084 16MnCr5 specifies P, S which are not specified for AISI 5120.
Can AISI 5120 be substituted with EN 10084 16MnCr5?
AISI 5120 and EN 10084 16MnCr5 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.