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NF A35-565 18NCD4 vs IS 1570 (Part 4) 10Cr20Mo6

Related Material — 58.3% match based on chemical composition and mechanical property overlap.

NF A35-565 18NCD4 and IS 1570 (Part 4) 10Cr20Mo6 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. NF A35-565 18NCD4 is defined under Association Francaise de Normalisation (NF), originating from France, while IS 1570 (Part 4) 10Cr20Mo6 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, NF A35-565 18NCD4 vs IS 1570 (Part 4) 10Cr20Mo6 is a 58.3% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 58.3%.

Frequently Compared With NF A35-565 18NCD4:
UNI 11234 100Cr6 NF A35-565 100C6 GB/T 3077 12Cr2Ni4A GOST 4543 12HN3A IS 1570 (Part 4) 07Cr4Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 105Cr5 IS 4367 10Cr9Mo10 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
58.3%
MECHANICAL MATCH
No shared data
OVERALL
58.3%
Specifications
Property NF A35-565 18NCD4 IS 1570 (Part 4) 10Cr20Mo6
Standard NF A35-565 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.15-0.21 <=0.15
Si (%) 0.15-0.40 <=0.50
Mn (%) 0.50-0.80 0.40-0.70
Ni (%) 0.90-1.40 <=0.30
Cr (%) 0.90-1.40 4.0-6.0
Mo (%) 0.15-0.30 0.45-0.65
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 A35-565 18NCD4 IS 1570 (Part 4) 10Cr20Mo6
Tensile Strength 850-1100 MPa Not specified
Yield Strength 650-850 MPa Not specified
Elongation 10-16% Not specified
Hardness 58-62 HRC (case) Not specified
Typical Applications
NF A35-565 18NCD4
Used for gears, aerospace shafts, pinions, transmission components, heavy-duty bearings, and carburized mechanical parts.
IS 1570 (Part 4) 10Cr20Mo6
Not documented
Key Differences
Can NF A35-565 18NCD4 Be Substituted With IS 1570 (Part 4) 10Cr20Mo6?
NF A35-565 18NCD4 and IS 1570 (Part 4) 10Cr20Mo6 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 A35-565 18NCD4
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6000–6700 mm (236.22–263.78 in)
IS 1570 (Part 4) 10Cr20Mo6
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On M-EX Right Now
NF A35-565 18NCD4
2 active listings and RFQs →
IS 1570 (Part 4) 10Cr20Mo6
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Frequently Asked Questions
What is the difference between NF A35-565 18NCD4 and IS 1570 (Part 4) 10Cr20Mo6?
NF A35-565 18NCD4 specifies P, S which are not specified for IS 1570 (Part 4) 10Cr20Mo6.
Can NF A35-565 18NCD4 be substituted with IS 1570 (Part 4) 10Cr20Mo6?
NF A35-565 18NCD4 and IS 1570 (Part 4) 10Cr20Mo6 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.