Minimal Match — 48.8% match
based on chemical composition and mechanical property overlap.
EN 10083-3 37Cr4 (EN 10083-3:2006) and NF A35-565 100C6 are both steel grades.
Both fall under the Alloy Steel category.
EN 10083-3 37Cr4 is typically used for quenched and tempered, flame or induction hardened machine parts (clause 1), while NF A35-565 100C6 is commonly used for ball bearings, roller bearings, bearing races, rollers, precision tools, wear resistant parts.
EN 10083-3 37Cr4 is defined under European Standard (EN), originating from Europe, while NF A35-565 100C6 is defined under Association Francaise de Normalisation (NF), originating from France.
As per chemical composition, EN 10083-3 37Cr4 vs NF A35-565 100C6 is a 73.3% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 48.8%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10083-3 37Cr4
NF A35-565 100C6
Condition
Quenched and tempered (+QT), ruling section d <= 16 mm
Not specified
Elongation
11% min
Not specified
Hardness
Soft annealed (+A): 235 HBW max
60-66 HRC
Tensile Strength
950 to 1150 MPa
850-1100 MPa
Yield Strength
750 MPa min
Not specified
Typical Applications
EN 10083-3 37Cr4
Quenched and tempered, flame or induction hardened machine parts (clause 1)
Can EN 10083-3 37Cr4 Be Substituted With NF A35-565 100C6?
EN 10083-3 37Cr4 and NF A35-565 100C6 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
What is the difference between EN 10083-3 37Cr4 and NF A35-565 100C6?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10083-3 37Cr4 be substituted with NF A35-565 100C6?
EN 10083-3 37Cr4 and NF A35-565 100C6 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.