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IS 1570 (Part 4) 20Ni7Cr2Mo2 vs JIS G4103 SNCM420

Close Alternative — 84.7% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 4) 20Ni7Cr2Mo2 (IS 1570 (Part 4):1988) and JIS G4103 SNCM420 (JIS G4103:1979) are both steel grades. Both fall under the Alloy Steel category. IS 1570 (Part 4) 20Ni7Cr2Mo2 is defined under Bureau of Indian Standards (IS), originating from India, while JIS G4103 SNCM420 is defined under Japanese Industrial Standards (JIS), originating from Japan.

As per chemical composition, IS 1570 (Part 4) 20Ni7Cr2Mo2 vs JIS G4103 SNCM420 is a 84.7% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 84.7%.

Frequently Compared With IS 1570 (Part 4) 20Ni7Cr2Mo2:
IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Mo6 GB/T 3077 12Cr2Ni4A GOST 4543 12HN3A IS 1570 (Part 4) 103Cr6 IS 4367 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
84.7%
MECHANICAL MATCH
No shared data
OVERALL
84.7%
Specifications
Property IS 1570 (Part 4) 20Ni7Cr2Mo2 JIS G4103 SNCM420
Standard IS 1570 (Part 4):1988 JIS G4103:1979
Category Alloy Steel Alloy Steel
C (%) 0.17-0.22 0.17-0.23
Si (%) 0.15-0.35 0.15-0.35
Mn (%) 0.45-0.65 0.40-0.70
Ni (%) 1.65-2.00 1.50-2.00
Cr (%) 0.40-0.60 0.40-0.80
Mo (%) 0.20-0.30 0.15-0.30
P (%) Not specified 0.030 max
S (%) Not specified 0.030 max
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) 20Ni7Cr2Mo2 JIS G4103 SNCM420
Tensile Strength Not specified 780-930 MPa
Yield Strength Not specified 590 MPa min
Elongation Not specified 14% min
Hardness Not specified 217-269 HB
Typical Applications
IS 1570 (Part 4) 20Ni7Cr2Mo2
Not documented
JIS G4103 SNCM420
Used in automotive gears, transmission parts, shafts, pinions, camshafts, and industrial equipment.
Key Differences
Can IS 1570 (Part 4) 20Ni7Cr2Mo2 Be Substituted With JIS G4103 SNCM420?
IS 1570 (Part 4) 20Ni7Cr2Mo2 and JIS G4103 SNCM420 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
Forms & Sizes Available on M-EX
IS 1570 (Part 4) 20Ni7Cr2Mo2
No active listings currently.
JIS G4103 SNCM420
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5900–6000 mm (232.28–236.22 in)
On M-EX Right Now
IS 1570 (Part 4) 20Ni7Cr2Mo2
0 active listings and RFQs →
JIS G4103 SNCM420
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 1570 (Part 4) 20Ni7Cr2Mo2 and JIS G4103 SNCM420?
JIS G4103 SNCM420 specifies P, S which are not specified for IS 1570 (Part 4) 20Ni7Cr2Mo2.
Can IS 1570 (Part 4) 20Ni7Cr2Mo2 be substituted with JIS G4103 SNCM420?
IS 1570 (Part 4) 20Ni7Cr2Mo2 and JIS G4103 SNCM420 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.