Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
GB/T 3077 40MnVB (GB/T 3077:2015) and NF A35-565 100C6 are both steel grades.
Both fall under the Alloy Steel category.
GB/T 3077 40MnVB is typically used for hot-rolled or forged structural alloy steel bars, while NF A35-565 100C6 is commonly used for ball bearings, roller bearings, bearing races, rollers, precision tools, wear resistant parts.
GB/T 3077 40MnVB is defined under Guobiao Standards (GB/T), originating from China, while NF A35-565 100C6 is defined under Association Francaise de Normalisation (NF), originating from France.
As per chemical composition, GB/T 3077 40MnVB vs NF A35-565 100C6 is a 61.8% match.
As per mechanical properties, the match is 0%.
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
GB/T 3077 40MnVB
NF A35-565 100C6
Tensile Strength
>=980 MPa
850-1100 MPa
Yield Strength
>=785 MPa
Not specified
Elongation
>=10%
Not specified
Hardness
<=207 HB
60-66 HRC
Condition
Quenched and tempered, test sample 25 mm; hardness is for bars delivered annealed or high temperature tempered
GB/T 3077 40MnVB specifies B, V, Cu which are not specified for NF A35-565 100C6.
NF A35-565 100C6 specifies Cr which is not specified for GB/T 3077 40MnVB.
Can GB/T 3077 40MnVB Be Substituted With NF A35-565 100C6?
GB/T 3077 40MnVB 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 GB/T 3077 40MnVB and NF A35-565 100C6?
GB/T 3077 40MnVB specifies B, V, Cu which are not specified for NF A35-565 100C6. NF A35-565 100C6 specifies Cr which is not specified for GB/T 3077 40MnVB.
Can GB/T 3077 40MnVB be substituted with NF A35-565 100C6?
GB/T 3077 40MnVB 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.