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IS 1570 (Part 4) 42Cr4Mo2 vs NF A35-552 42CD4

Strong Match — 98.9% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 4) 42Cr4Mo2 (IS 1570 (Part 4):1988) and NF A35-552 42CD4 (NF A35-552:1986) are both steel grades. Both fall under the Alloy Steel category. IS 1570 (Part 4) 42Cr4Mo2 is defined under Bureau of Indian Standards (IS), originating from India, while NF A35-552 42CD4 is defined under Association Francaise de Normalisation (NF), originating from France.

As per chemical composition, IS 1570 (Part 4) 42Cr4Mo2 vs NF A35-552 42CD4 is a 98.9% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a strong match overall at 98.9%.

Frequently Compared With IS 1570 (Part 4) 42Cr4Mo2:
GOST 4543 12HN3A NF A35-565 100C6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Mo6 GB/T 3077 12Cr2Ni4A IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
98.9%
MECHANICAL MATCH
No shared data
OVERALL
98.9%
Specifications
Property IS 1570 (Part 4) 42Cr4Mo2 NF A35-552 42CD4
Standard IS 1570 (Part 4):1988 NF A35-552:1986
Category Alloy Steel Alloy Steel
C (%) 0.38-0.45 0.38–0.45
Si (%) 0.10-0.35 0.15–0.35
Mn (%) 0.60-0.90 0.60–0.90
Cr (%) 0.90-1.20 0.90–1.20
Mo (%) 0.15-0.30 0.15–0.30
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 1570 (Part 4) 42Cr4Mo2 NF A35-552 42CD4
Tensile Strength Not specified 900–1100 MPa
Yield Strength Not specified ≥700 MPa
Elongation Not specified ≥12%
Hardness Not specified 263–313 HB
Typical Applications
IS 1570 (Part 4) 42Cr4Mo2
Not documented
NF A35-552 42CD4
Gears, shafts, crankshafts, high tensile fasteners
Can IS 1570 (Part 4) 42Cr4Mo2 Be Substituted With NF A35-552 42CD4?
IS 1570 (Part 4) 42Cr4Mo2 and NF A35-552 42CD4 overlap closely enough on chemistry and mechanical properties that NF A35-552 42CD4 is often considered as a substitute for IS 1570 (Part 4) 42Cr4Mo2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
IS 1570 (Part 4) 42Cr4Mo2
No active listings currently.
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)
On M-EX Right Now
IS 1570 (Part 4) 42Cr4Mo2
0 active listings and RFQs →
NF A35-552 42CD4
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 4) 42Cr4Mo2 and NF A35-552 42CD4?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 1570 (Part 4) 42Cr4Mo2 be substituted with NF A35-552 42CD4?
IS 1570 (Part 4) 42Cr4Mo2 and NF A35-552 42CD4 overlap closely enough on chemistry and mechanical properties that NF A35-552 42CD4 is often considered as a substitute for IS 1570 (Part 4) 42Cr4Mo2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.