Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
NF A35-552 40NCD3 (NF A35-552:1986) and NF A35-565 100C6 are both steel grades.
Both fall under the Alloy Steel category.
NF A35-552 40NCD3 is typically used for used for gears, aircraft fittings, transmission shafts, crankshafts, heavy-duty bolts, and connecting rods., while NF A35-565 100C6 is commonly used for ball bearings, roller bearings, bearing races, rollers, precision tools, wear resistant parts.
NF A35-552 40NCD3 is defined under Association Francaise de Normalisation (NF), originating from France, while NF A35-565 100C6 is defined under Association Francaise de Normalisation (NF), originating from France.
As per chemical composition, NF A35-552 40NCD3 vs NF A35-565 100C6 is a 57.4% match.
As per mechanical properties, the match is 40%.
Combined, this makes them a minimal match overall at 35%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
NF A35-552 40NCD3
NF A35-565 100C6
Tensile Strength
850-1050 MPa
850-1100 MPa
Yield Strength
650-850 MPa
Not specified
Elongation
10-15%
Not specified
Hardness
250-320 HB
60-66 HRC
Typical Applications
NF A35-552 40NCD3
Used for gears, aircraft fittings, transmission shafts, crankshafts, heavy-duty bolts, and connecting rods.
NF A35-552 40NCD3 specifies Ni, Mo which are not specified for NF A35-565 100C6.
Can NF A35-552 40NCD3 Be Substituted With NF A35-565 100C6?
NF A35-552 40NCD3 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 NF A35-552 40NCD3 and NF A35-565 100C6?
NF A35-552 40NCD3 specifies Ni, Mo which are not specified for NF A35-565 100C6.
Can NF A35-552 40NCD3 be substituted with NF A35-565 100C6?
NF A35-552 40NCD3 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.