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NF A35-552 34NCD6 vs NF A35-565 100C6

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

NF A35-552 34NCD6 (NF A35-552:1986) and NF A35-565 100C6 are both steel grades. Both fall under the Alloy Steel category. NF A35-552 34NCD6 is typically used for used for aircraft parts, transmission shafts, gears, crankshafts, connecting rods, and heavy-duty fasteners., while NF A35-565 100C6 is commonly used for ball bearings, roller bearings, bearing races, rollers, precision tools, wear resistant parts. NF A35-552 34NCD6 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 34NCD6 vs NF A35-565 100C6 is a 63.8% match. As per mechanical properties, the match is 40%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With NF A35-552 34NCD6:
UNI 11234 100Cr6 GOST 4543 12HN3A GB/T 3077 12Cr2Ni4A IS 1570 (Part 4) 07Cr4Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
63.8%
MECHANICAL MATCH
40%
OVERALL
35%
Specifications
Property NF A35-552 34NCD6 NF A35-565 100C6
Standard NF A35-552:1986 NF A35-565
Category Alloy Steel Alloy Steel
C (%) 0.30-0.38 0.95-1.05
Si (%) 0.15-0.40 0.15-0.35
Mn (%) 0.50-0.80 0.25-0.45
Ni (%) 1.30-1.70 Not specified
Cr (%) 1.30-1.70 1.35-1.65
Mo (%) 0.15-0.30 Not specified
P (%) 0.035 max <=0.027
S (%) 0.035 max <=0.025
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 34NCD6 NF A35-565 100C6
Tensile Strength 900-1100 MPa 850-1100 MPa
Yield Strength 700-850 MPa Not specified
Elongation 10-14% Not specified
Hardness 270-340 HB 60-66 HRC
Typical Applications
NF A35-552 34NCD6
Used for aircraft parts, transmission shafts, gears, crankshafts, connecting rods, and heavy-duty fasteners.
NF A35-565 100C6
ball bearings, roller bearings, bearing races, rollers, precision tools, wear resistant parts
Key Differences
Can NF A35-552 34NCD6 Be Substituted With NF A35-565 100C6?
NF A35-552 34NCD6 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.
Forms & Sizes Available on M-EX
NF A35-552 34NCD6
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5000–7000 mm (196.85–275.59 in)
NF A35-565 100C6
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6700–6700 mm (263.78–263.78 in)
On M-EX Right Now
NF A35-552 34NCD6
2 active listings and RFQs →
NF A35-565 100C6
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between NF A35-552 34NCD6 and NF A35-565 100C6?
NF A35-552 34NCD6 specifies Ni, Mo which are not specified for NF A35-565 100C6.
Can NF A35-552 34NCD6 be substituted with NF A35-565 100C6?
NF A35-552 34NCD6 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.