Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
JIS G4053 SNCM220 (JIS G4053:2008) and GOST 4543 12HN3A (GOST 4543-2016) are both steel grades.
Both fall under the Alloy Steel category.
JIS G4053 SNCM220 is typically used for nickel-chromium-molybdenum case-hardening (carburizing) steel; automotive bearings, drive shafts, gears, and components requiring high wear resistance with impact-resistant core, while GOST 4543 12HN3A is commonly used for used for gears, pinions, crankshafts, aircraft parts, and transmission components..
JIS G4053 SNCM220 is defined under Japanese Industrial Standards (JIS) (Japan).
As per chemical composition, JIS G4053 SNCM220 vs GOST 4543 12HN3A is a 57.5% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 35%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
JIS G4053 SNCM220
GOST 4543 12HN3A
Tensile Strength
930 MPa min
850-1050 MPa
Yield Strength
785 MPa min
685 MPa min
Elongation
12% min
11% min
Hardness
269-331 HB
58-62 HRC (case)
Typical Applications
JIS G4053 SNCM220
Nickel-chromium-molybdenum case-hardening (carburizing) steel; automotive bearings, drive shafts, gears, and components requiring high wear resistance with impact-resistant core
GOST 4543 12HN3A
Used for gears, pinions, crankshafts, aircraft parts, and transmission components.
Key Differences
JIS G4053 SNCM220 specifies P, S, Mo which are not specified for GOST 4543 12HN3A.
Can JIS G4053 SNCM220 Be Substituted With GOST 4543 12HN3A?
JIS G4053 SNCM220 and GOST 4543 12HN3A 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.
What is the difference between JIS G4053 SNCM220 and GOST 4543 12HN3A?
JIS G4053 SNCM220 specifies P, S, Mo which are not specified for GOST 4543 12HN3A.
Can JIS G4053 SNCM220 be substituted with GOST 4543 12HN3A?
JIS G4053 SNCM220 and GOST 4543 12HN3A 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.