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NF A35-552 40NCD3 vs IS 1570 (Part 4) 105Cr5

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

NF A35-552 40NCD3 (NF A35-552:1986) and IS 1570 (Part 4) 105Cr5 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. NF A35-552 40NCD3 is defined under Association Francaise de Normalisation (NF), originating from France, while IS 1570 (Part 4) 105Cr5 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, NF A35-552 40NCD3 vs IS 1570 (Part 4) 105Cr5 is a 60.7% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With NF A35-552 40NCD3:
GOST 4543 12HN3A NF A35-565 100C6 UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 103Cr6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Cr20Mo6 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
60.7%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property NF A35-552 40NCD3 IS 1570 (Part 4) 105Cr5
Standard NF A35-552:1986 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.37-0.43 0.90-1.20
Si (%) 0.15-0.40 0.10-0.35
Mn (%) 0.50-0.80 0.40-0.80
Ni (%) 1.00-1.40 Not specified
Cr (%) 0.60-1.00 1.00-1.60
Mo (%) 0.15-0.30 Not specified
P (%) 0.035 max Not specified
S (%) 0.035 max Not specified
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 IS 1570 (Part 4) 105Cr5
Tensile Strength 850-1050 MPa Not specified
Yield Strength 650-850 MPa Not specified
Elongation 10-15% Not specified
Hardness 250-320 HB Not specified
Typical Applications
NF A35-552 40NCD3
Used for gears, aircraft fittings, transmission shafts, crankshafts, heavy-duty bolts, and connecting rods.
IS 1570 (Part 4) 105Cr5
Not documented
Key Differences
Can NF A35-552 40NCD3 Be Substituted With IS 1570 (Part 4) 105Cr5?
NF A35-552 40NCD3 and IS 1570 (Part 4) 105Cr5 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 40NCD3
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6500–6600 mm (255.91–259.84 in)
IS 1570 (Part 4) 105Cr5
No active listings currently.
On M-EX Right Now
NF A35-552 40NCD3
2 active listings and RFQs →
IS 1570 (Part 4) 105Cr5
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Frequently Asked Questions
What is the difference between NF A35-552 40NCD3 and IS 1570 (Part 4) 105Cr5?
NF A35-552 40NCD3 specifies Ni, Mo, P, S which are not specified for IS 1570 (Part 4) 105Cr5.
Can NF A35-552 40NCD3 be substituted with IS 1570 (Part 4) 105Cr5?
NF A35-552 40NCD3 and IS 1570 (Part 4) 105Cr5 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.