Strong Match — 99.7% match
based on chemical composition and mechanical property overlap.
EN 10083-1 3C45 (EN 10083-1:1991) and EN 10083-2 C45R (EN 10083-2:2006) are both steel grades.
Both fall under the Carbon Steel category.
EN 10083-1 3C45 is typically used for quenched and tempered machine parts; non alloy steels also normalized (clause 1), while EN 10083-2 C45R is commonly used for quenched and tempered, flame or induction hardened machine parts; can also be used normalized (clause 1).
EN 10083-1 3C45 is defined under European Standard (EN), originating from Europe, while EN 10083-2 C45R is defined under European Standard (EN), originating from Europe.
As per chemical composition, EN 10083-1 3C45 vs EN 10083-2 C45R is a 99.6% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 99.7%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10083-1 3C45
EN 10083-2 C45R
Condition
Quenched and tempered, ruling section d <= 16 mm
Quenched and tempered (+QT), ruling section d <= 16 mm
Elongation
14% min
14% min
Hardness
Soft annealed: 207 HB max
Soft annealed (+A): 207 HBW max
Tensile Strength
700 to 850 MPa
700 to 850 MPa
Yield Strength
490 MPa min
490 MPa min
Typical Applications
EN 10083-1 3C45
Quenched and tempered machine parts; non alloy steels also normalized (clause 1)
EN 10083-2 C45R
Quenched and tempered, flame or induction hardened machine parts; can also be used normalized (clause 1)
Can EN 10083-1 3C45 Be Substituted With EN 10083-2 C45R?
EN 10083-1 3C45 and EN 10083-2 C45R overlap closely enough on chemistry and mechanical properties that EN 10083-2 C45R is often considered as a substitute for EN 10083-1 3C45 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 10083-1 3C45 and EN 10083-2 C45R?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10083-1 3C45 be substituted with EN 10083-2 C45R?
EN 10083-1 3C45 and EN 10083-2 C45R overlap closely enough on chemistry and mechanical properties that EN 10083-2 C45R is often considered as a substitute for EN 10083-1 3C45 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.