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KS D3867 SCM435 vs IS 1570 (Part 4) 42Cr4Mo2

Strong Match — 87% match based on chemical composition and mechanical property overlap.

KS D3867 SCM435 (KS D 3867:2025) and IS 1570 (Part 4) 42Cr4Mo2 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. KS D3867 SCM435 is defined under Korean Industrial Standards (KS), originating from South Korea, while IS 1570 (Part 4) 42Cr4Mo2 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, KS D3867 SCM435 vs IS 1570 (Part 4) 42Cr4Mo2 is a 87% 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 87%.

Frequently Compared With KS D3867 SCM435:
NF A35-565 100C6 GOST 4543 12HN3A UNI 11234 100Cr6 IS 1570 (Part 4) 105Cr5 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 07Cr4Mo6 GB/T 3077 12Cr2Ni4A IS 4367 10Cr9Mo10 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
87%
MECHANICAL MATCH
No shared data
OVERALL
87%
Specifications
Property KS D3867 SCM435 IS 1570 (Part 4) 42Cr4Mo2
Standard KS D 3867:2025 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.33-0.38 0.38-0.45
Si (%) 0.15-0.35 0.10-0.35
Mn (%) 0.60-0.85 0.60-0.90
P (%) <=0.030 Not specified
S (%) <=0.030 Not specified
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 KS D3867 SCM435 IS 1570 (Part 4) 42Cr4Mo2
Tensile Strength 930-1080 MPa Not specified
Yield Strength 785 MPa min Not specified
Elongation 12-15 % Not specified
Hardness 269-321 HB Not specified
Typical Applications
KS D3867 SCM435
shafts,bolts,studs,axles,gears,structural components,fasteners,machine parts
IS 1570 (Part 4) 42Cr4Mo2
Not documented
Key Differences
Can KS D3867 SCM435 Be Substituted With IS 1570 (Part 4) 42Cr4Mo2?
KS D3867 SCM435 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 KS D3867 SCM435 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
KS D3867 SCM435
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5400–6000 mm (212.6–236.22 in)
IS 1570 (Part 4) 42Cr4Mo2
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On M-EX Right Now
KS D3867 SCM435
2 active listings and RFQs →
IS 1570 (Part 4) 42Cr4Mo2
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Frequently Asked Questions
What is the difference between KS D3867 SCM435 and IS 1570 (Part 4) 42Cr4Mo2?
KS D3867 SCM435 specifies P, S which are not specified for IS 1570 (Part 4) 42Cr4Mo2.
Can KS D3867 SCM435 be substituted with IS 1570 (Part 4) 42Cr4Mo2?
KS D3867 SCM435 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 KS D3867 SCM435 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.