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IS 4367 40Cr4Mo3 vs IS 1570 (Part 4) 42Cr4Mo2

Strong Match — 88.6% match based on chemical composition and mechanical property overlap.

IS 4367 40Cr4Mo3 (IS 4367:1991) and IS 1570 (Part 4) 42Cr4Mo2 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. IS 4367 40Cr4Mo3 is defined under Bureau of Indian Standards (IS), originating from India, while IS 1570 (Part 4) 42Cr4Mo2 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, IS 4367 40Cr4Mo3 vs IS 1570 (Part 4) 42Cr4Mo2 is a 88.6% 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 88.6%.

Frequently Compared With IS 4367 40Cr4Mo3:
GOST 4543 12HN3A NF A35-565 100C6 GB/T 3077 12Cr2Ni4A UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 103Cr4 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
88.6%
MECHANICAL MATCH
No shared data
OVERALL
88.6%
Specifications
Property IS 4367 40Cr4Mo3 IS 1570 (Part 4) 42Cr4Mo2
Standard IS 4367:1991 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.35-0.45 0.38-0.45
Si (%) 0.10-0.35 0.10-0.35
Mn (%) 0.50-0.80 0.60-0.90
Cr (%) 0.90-1.20 0.90-1.20
Mo (%) 0.20-0.35 0.15-0.30
S (%) <=0.035 Not specified
P (%) <=0.035 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 IS 4367 40Cr4Mo3 IS 1570 (Part 4) 42Cr4Mo2
Tensile Strength 700-850 MPa Not specified
Yield Strength 540 MPa min Not specified
Elongation >=18% Not specified
Izod Impact 55 J min Not specified
Hardness 208-252 HB Not specified
Hardness (soft annealed) <=220 HB Not specified
Condition Hardened and tempered, ruling section up to 150 mm Not specified
Typical Applications
IS 4367 40Cr4Mo3
gears, crankshafts, connecting rods, heavy duty shafts, high strength bolts, forged components
IS 1570 (Part 4) 42Cr4Mo2
Not documented
Key Differences
Can IS 4367 40Cr4Mo3 Be Substituted With IS 1570 (Part 4) 42Cr4Mo2?
IS 4367 40Cr4Mo3 and IS 1570 (Part 4) 42Cr4Mo2 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 4) 42Cr4Mo2 is often considered as a substitute for IS 4367 40Cr4Mo3 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 4367 40Cr4Mo3
Round Bar → (4 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5200–6700 mm (204.72–263.78 in)
IS 1570 (Part 4) 42Cr4Mo2
No active listings currently.
On M-EX Right Now
IS 4367 40Cr4Mo3
4 active listings and RFQs →
IS 1570 (Part 4) 42Cr4Mo2
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Frequently Asked Questions
What is the difference between IS 4367 40Cr4Mo3 and IS 1570 (Part 4) 42Cr4Mo2?
IS 4367 40Cr4Mo3 specifies S, P which are not specified for IS 1570 (Part 4) 42Cr4Mo2.
Can IS 4367 40Cr4Mo3 be substituted with IS 1570 (Part 4) 42Cr4Mo2?
IS 4367 40Cr4Mo3 and IS 1570 (Part 4) 42Cr4Mo2 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 4) 42Cr4Mo2 is often considered as a substitute for IS 4367 40Cr4Mo3 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.