Strong Match — 100% match
based on chemical composition and mechanical property overlap.
EN 10083-1 3C55 (EN 10083-1:1991) and EN 10083-1 C55R (EN 10083-1:1996) are both steel grades.
Both fall under the Carbon Steel category.
EN 10083-1 3C55 is typically used for quenched and tempered machine parts; non alloy steels also normalized (clause 1), while EN 10083-1 C55R is commonly used for quenched and tempered machine parts; also used normalized (clause 1.1, table 10).
EN 10083-1 3C55 is defined under European Standard (EN), originating from Europe, while EN 10083-1 C55R is defined under European Standard (EN), originating from Europe.
As per chemical composition, EN 10083-1 3C55 vs EN 10083-1 C55R is a 100% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 100%.
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 3C55
EN 10083-1 C55R
Condition
Quenched and tempered, ruling section d <= 16 mm
Quenched and tempered, ruling section d <= 16 mm
Elongation
12% min
12% min
Hardness
Soft annealed: 229 HB max
Soft annealed: 229 HB max
Tensile Strength
800 to 950 MPa
800 to 950 MPa
Yield Strength
550 MPa min
550 MPa min
Typical Applications
EN 10083-1 3C55
Quenched and tempered machine parts; non alloy steels also normalized (clause 1)
EN 10083-1 C55R
Quenched and tempered machine parts; also used normalized (clause 1.1, Table 10)
Can EN 10083-1 3C55 Be Substituted With EN 10083-1 C55R?
EN 10083-1 3C55 and EN 10083-1 C55R overlap closely enough on chemistry and mechanical properties that EN 10083-1 C55R is often considered as a substitute for EN 10083-1 3C55 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 3C55 and EN 10083-1 C55R?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10083-1 3C55 be substituted with EN 10083-1 C55R?
EN 10083-1 3C55 and EN 10083-1 C55R overlap closely enough on chemistry and mechanical properties that EN 10083-1 C55R is often considered as a substitute for EN 10083-1 3C55 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.