Strong Match — 98.8% match
based on chemical composition and mechanical property overlap.
EN 10083-1 34CrMo4 (EN 10083-1:1996) and EN 10083-1 34CrMoS4 (EN 10083-1:1991) are both steel grades.
Both fall under the Alloy Steel category.
EN 10083-1 34CrMo4 is typically used for quenched and tempered machine parts (clause 1.1), while EN 10083-1 34CrMoS4 is commonly used for quenched and tempered machine parts; non alloy steels also normalized (clause 1).
EN 10083-1 34CrMo4 is defined under European Standard (EN), originating from Europe, while EN 10083-1 34CrMoS4 is defined under European Standard (EN), originating from Europe.
As per chemical composition, EN 10083-1 34CrMo4 vs EN 10083-1 34CrMoS4 is a 98.2% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 98.8%.
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 34CrMo4
EN 10083-1 34CrMoS4
Condition
Quenched and tempered, ruling section d <= 16 mm
Quenched and tempered, ruling section d <= 16 mm
Elongation
11% min
11% min
Hardness
Soft annealed: 223 HB max
Soft annealed: 223 HB max
Tensile Strength
1000 to 1200 MPa
1000 to 1200 MPa
Yield Strength
800 MPa min
800 MPa min
Typical Applications
EN 10083-1 34CrMo4
Quenched and tempered machine parts (clause 1.1)
EN 10083-1 34CrMoS4
Quenched and tempered machine parts; non alloy steels also normalized (clause 1)
Can EN 10083-1 34CrMo4 Be Substituted With EN 10083-1 34CrMoS4?
EN 10083-1 34CrMo4 and EN 10083-1 34CrMoS4 overlap closely enough on chemistry and mechanical properties that EN 10083-1 34CrMoS4 is often considered as a substitute for EN 10083-1 34CrMo4 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 34CrMo4 and EN 10083-1 34CrMoS4?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10083-1 34CrMo4 be substituted with EN 10083-1 34CrMoS4?
EN 10083-1 34CrMo4 and EN 10083-1 34CrMoS4 overlap closely enough on chemistry and mechanical properties that EN 10083-1 34CrMoS4 is often considered as a substitute for EN 10083-1 34CrMo4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.