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JIS G4053 SNCM220 vs GB/T 3077 12Cr2Ni4A

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

JIS G4053 SNCM220 (JIS G4053:2008) and GB/T 3077 12Cr2Ni4A (GB/T 3077-2015) 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 GB/T 3077 12Cr2Ni4A is commonly used for used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components.. JIS G4053 SNCM220 is defined under Japanese Industrial Standards (JIS), originating from Japan, while GB/T 3077 12Cr2Ni4A is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, JIS G4053 SNCM220 vs GB/T 3077 12Cr2Ni4A is a 58% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With JIS G4053 SNCM220:
UNI 11234 100Cr6 GOST 4543 12HN3A NF A35-565 100C6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 103Cr6 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
58%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property JIS G4053 SNCM220 GB/T 3077 12Cr2Ni4A
Standard JIS G4053:2008 GB/T 3077-2015
Category Alloy Steel Alloy Steel
C (%) 0.17-0.23 0.10-0.15
Mn (%) 0.60-0.90 0.30-0.60
Si (%) 0.15-0.35 0.17-0.37
P (%) <=0.030 0.025 max
S (%) <=0.030 0.025 max
Cr (%) 0.40-0.65 1.25-1.65
Ni (%) 0.40-0.70 3.25-3.75
Mo (%) 0.15-0.30 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 G4053 SNCM220 GB/T 3077 12Cr2Ni4A
Tensile Strength 930 MPa min 980-1180 MPa
Yield Strength 785 MPa min 785-980 MPa
Elongation 12% min 10-14%
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
GB/T 3077 12Cr2Ni4A
Used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components.
Key Differences
Can JIS G4053 SNCM220 Be Substituted With GB/T 3077 12Cr2Ni4A?
JIS G4053 SNCM220 and GB/T 3077 12Cr2Ni4A 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 G4053 SNCM220
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5900–6400 mm (232.28–251.97 in)
GB/T 3077 12Cr2Ni4A
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5000–6600 mm (196.85–259.84 in)
On M-EX Right Now
JIS G4053 SNCM220
2 active listings and RFQs →
GB/T 3077 12Cr2Ni4A
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G4053 SNCM220 and GB/T 3077 12Cr2Ni4A?
JIS G4053 SNCM220 specifies Mo which is not specified for GB/T 3077 12Cr2Ni4A.
Can JIS G4053 SNCM220 be substituted with GB/T 3077 12Cr2Ni4A?
JIS G4053 SNCM220 and GB/T 3077 12Cr2Ni4A 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.