Post Stock Login Register

JIS G4103 SNCM439 vs IS 1570 (Part 4) 103Cr4

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

JIS G4103 SNCM439 (JIS G4103:1979) and IS 1570 (Part 4) 103Cr4 (IS 1570 (Part 4):1988) are both steel grades. Both fall under the Alloy Steel category. JIS G4103 SNCM439 is defined under Japanese Industrial Standards (JIS), originating from Japan, while IS 1570 (Part 4) 103Cr4 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, JIS G4103 SNCM439 vs IS 1570 (Part 4) 103Cr4 is a 60.3% 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 JIS G4103 SNCM439:
GOST 4543 12HN3A NF A35-565 100C6 UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A IS 1570 (Part 4) 07Cr4Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
60.3%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property JIS G4103 SNCM439 IS 1570 (Part 4) 103Cr4
Standard JIS G4103:1979 IS 1570 (Part 4):1988
Category Alloy Steel Alloy Steel
C (%) 0.36–0.43 0.95-1.10
Si (%) 0.15–0.35 0.10-0.35
Mn (%) 0.60–0.90 0.25-0.45
Cr (%) 0.60–1.00 0.90-1.20
Mo (%) 0.15–0.30 Not specified
Ni (%) 1.60–2.00 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 JIS G4103 SNCM439 IS 1570 (Part 4) 103Cr4
Tensile Strength ≥980 MPa Not specified
Yield Strength ≥835 MPa Not specified
Elongation ≥12% Not specified
Hardness 293–352 HB Not specified
Typical Applications
JIS G4103 SNCM439
Crankshafts, gears, heavy duty shafts, aircraft components
IS 1570 (Part 4) 103Cr4
Not documented
Key Differences
Can JIS G4103 SNCM439 Be Substituted With IS 1570 (Part 4) 103Cr4?
JIS G4103 SNCM439 and IS 1570 (Part 4) 103Cr4 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
JIS G4103 SNCM439
Round Bar → (3 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 4900–5800 mm (192.91–228.35 in)
IS 1570 (Part 4) 103Cr4
No active listings currently.
On M-EX Right Now
JIS G4103 SNCM439
3 active listings and RFQs →
IS 1570 (Part 4) 103Cr4
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G4103 SNCM439 and IS 1570 (Part 4) 103Cr4?
JIS G4103 SNCM439 specifies Mo, Ni which are not specified for IS 1570 (Part 4) 103Cr4.
Can JIS G4103 SNCM439 be substituted with IS 1570 (Part 4) 103Cr4?
JIS G4103 SNCM439 and IS 1570 (Part 4) 103Cr4 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.