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KS D3867 SCM440 vs IS 1570 (Part 4) 10Cr20Mo6

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

KS D3867 SCM440 (KS D 3867:2025) and IS 1570 (Part 4) 10Cr20Mo6 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. KS D3867 SCM440 is defined under Korean Industrial Standards (KS), originating from South Korea, while IS 1570 (Part 4) 10Cr20Mo6 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, KS D3867 SCM440 vs IS 1570 (Part 4) 10Cr20Mo6 is a 57% 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 KS D3867 SCM440:
NF A35-565 100C6 GOST 4543 12HN3A GB/T 3077 12Cr2Ni4A IS 1570 (Part 4) 103Cr6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 UNI 11234 100Cr6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 07Cr4Mo6 IS 4367 10Cr9Mo10 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
57%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property KS D3867 SCM440 IS 1570 (Part 4) 10Cr20Mo6
Standard KS D 3867:2025 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.38-0.43 <=0.15
Si (%) 0.15-0.35 <=0.50
Mn (%) 0.60-0.85 0.40-0.70
P (%) <=0.030 Not specified
S (%) <=0.030 Not specified
Cr (%) 0.90-1.20 4.0-6.0
Mo (%) 0.15-0.30 0.45-0.65
Ni (%) Not specified <=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 SCM440 IS 1570 (Part 4) 10Cr20Mo6
Tensile Strength 900-1100 MPa Not specified
Yield Strength 700-900 MPa Not specified
Elongation 11-16 % Not specified
Hardness 248-320 HB Not specified
Typical Applications
KS D3867 SCM440
shafts,gears,axles,bolts,automotive parts,machine components,spindles,hydraulic parts
IS 1570 (Part 4) 10Cr20Mo6
Not documented
Key Differences
Can KS D3867 SCM440 Be Substituted With IS 1570 (Part 4) 10Cr20Mo6?
KS D3867 SCM440 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
KS D3867 SCM440
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6000–6500 mm (236.22–255.91 in)
IS 1570 (Part 4) 10Cr20Mo6
No active listings currently.
On M-EX Right Now
KS D3867 SCM440
2 active listings and RFQs →
IS 1570 (Part 4) 10Cr20Mo6
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Frequently Asked Questions
What is the difference between KS D3867 SCM440 and IS 1570 (Part 4) 10Cr20Mo6?
KS D3867 SCM440 specifies P, S which are not specified for IS 1570 (Part 4) 10Cr20Mo6. IS 1570 (Part 4) 10Cr20Mo6 specifies Ni which is not specified for KS D3867 SCM440.
Can KS D3867 SCM440 be substituted with IS 1570 (Part 4) 10Cr20Mo6?
KS D3867 SCM440 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.