Post Stock Login Register

IS 1570 (Part 4) 42Cr4Mo2 vs JIS G4105 SCM440

Strong Match — 96.4% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 4) 42Cr4Mo2 (IS 1570 (Part 4):1988) and JIS G4105 SCM440 (JIS G4105:1979) 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 JIS G4105 SCM440 is defined under Japanese Industrial Standards (JIS), originating from Japan.

As per chemical composition, IS 1570 (Part 4) 42Cr4Mo2 vs JIS G4105 SCM440 is a 96.4% 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 96.4%.

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
96.4%
MECHANICAL MATCH
No shared data
OVERALL
96.4%
Specifications
Property IS 1570 (Part 4) 42Cr4Mo2 JIS G4105 SCM440
Standard IS 1570 (Part 4):1988 JIS G4105:1979
Category Alloy Steel Alloy Steel
C (%) 0.38-0.45 0.38–0.43
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
S (%) Not specified ≤0.030
P (%) Not specified ≤0.030
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 JIS G4105 SCM440
Tensile Strength Not specified ≥930 MPa
Yield Strength Not specified ≥785 MPa
Elongation Not specified ≥12%
Hardness Not specified 269–331 HB
Typical Applications
IS 1570 (Part 4) 42Cr4Mo2
Not documented
JIS G4105 SCM440
Automotive parts, gears, shafts, bolts, dies
Key Differences
Can IS 1570 (Part 4) 42Cr4Mo2 Be Substituted With JIS G4105 SCM440?
IS 1570 (Part 4) 42Cr4Mo2 and JIS G4105 SCM440 overlap closely enough on chemistry and mechanical properties that JIS G4105 SCM440 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.
JIS G4105 SCM440
Round Bar → (3 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5400–7000 mm (212.6–275.59 in)
On M-EX Right Now
IS 1570 (Part 4) 42Cr4Mo2
0 active listings and RFQs →
JIS G4105 SCM440
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 4) 42Cr4Mo2 and JIS G4105 SCM440?
JIS G4105 SCM440 specifies S, P which are not specified for IS 1570 (Part 4) 42Cr4Mo2.
Can IS 1570 (Part 4) 42Cr4Mo2 be substituted with JIS G4105 SCM440?
IS 1570 (Part 4) 42Cr4Mo2 and JIS G4105 SCM440 overlap closely enough on chemistry and mechanical properties that JIS G4105 SCM440 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.