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NF A35-552 42CD4 vs IS 1570 (Part 4) 103Cr6

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

NF A35-552 42CD4 (NF A35-552:1986) and IS 1570 (Part 4) 103Cr6 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. NF A35-552 42CD4 is defined under Association Francaise de Normalisation (NF), originating from France, while IS 1570 (Part 4) 103Cr6 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, NF A35-552 42CD4 vs IS 1570 (Part 4) 103Cr6 is a 67.4% 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 42CD4:
GOST 4543 12HN3A GB/T 3077 12Cr2Ni4A NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
67.4%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property NF A35-552 42CD4 IS 1570 (Part 4) 103Cr6
Standard NF A35-552:1986 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.38–0.45 0.95-1.10
Si (%) 0.15–0.35 0.10-0.35
Mn (%) 0.60–0.90 0.25-0.45
Cr (%) 0.90–1.20 1.40-1.60
Mo (%) 0.15–0.30 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 42CD4 IS 1570 (Part 4) 103Cr6
Tensile Strength 900–1100 MPa Not specified
Yield Strength ≥700 MPa Not specified
Elongation ≥12% Not specified
Hardness 263–313 HB Not specified
Typical Applications
NF A35-552 42CD4
Gears, shafts, crankshafts, high tensile fasteners
IS 1570 (Part 4) 103Cr6
Not documented
Key Differences
Can NF A35-552 42CD4 Be Substituted With IS 1570 (Part 4) 103Cr6?
NF A35-552 42CD4 and IS 1570 (Part 4) 103Cr6 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 42CD4
Round Bar → (3 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5900–6800 mm (232.28–267.72 in)
IS 1570 (Part 4) 103Cr6
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On M-EX Right Now
NF A35-552 42CD4
3 active listings and RFQs →
IS 1570 (Part 4) 103Cr6
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Frequently Asked Questions
What is the difference between NF A35-552 42CD4 and IS 1570 (Part 4) 103Cr6?
NF A35-552 42CD4 specifies Mo which is not specified for IS 1570 (Part 4) 103Cr6.
Can NF A35-552 42CD4 be substituted with IS 1570 (Part 4) 103Cr6?
NF A35-552 42CD4 and IS 1570 (Part 4) 103Cr6 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.