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EN 10083-3 34CrNiMo6 vs GB/T 3077 12Cr2Ni4A

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

EN 10083-3 34CrNiMo6 (EN 10083-3:2006) and GB/T 3077 12Cr2Ni4A (GB/T 3077-2015) are both steel grades. Both fall under the Alloy Steel category. EN 10083-3 34CrNiMo6 is typically used for heavy duty shafts, crankshafts, gears, high tensile components, while GB/T 3077 12Cr2Ni4A is commonly used for used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components.. EN 10083-3 34CrNiMo6 is defined under European Standard (EN), originating from Europe, while GB/T 3077 12Cr2Ni4A is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, EN 10083-3 34CrNiMo6 vs GB/T 3077 12Cr2Ni4A is a 64.1% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With EN 10083-3 34CrNiMo6:
NF A35-565 100C6 UNI 11234 100Cr6 GOST 4543 12HN3A IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr6 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
64.1%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property EN 10083-3 34CrNiMo6 GB/T 3077 12Cr2Ni4A
Standard EN 10083-3:2006 GB/T 3077-2015
Category Alloy Steel Alloy Steel
C (%) 0.30-0.38 0.10-0.15
Cr (%) 1.30-1.70 1.25-1.65
Mn (%) 0.50-0.80 0.30-0.60
Mo (%) 0.15-0.30 Not specified
Ni (%) 1.30-1.70 3.25-3.75
P (%) <=0.025 0.025 max
S (%) <=0.035 0.025 max
Si (%) <=0.40 0.17-0.37
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property EN 10083-3 34CrNiMo6 GB/T 3077 12Cr2Ni4A
Condition Quenched and tempered (+QT), ruling section d <= 16 mm Not specified
Elongation 9% min 10-14%
Hardness Soft annealed (+A): 248 HBW max 58-62 HRC (case)
Tensile Strength 1200 to 1400 MPa 980-1180 MPa
Yield Strength 1000 MPa min 785-980 MPa
Typical Applications
EN 10083-3 34CrNiMo6
Heavy duty shafts, crankshafts, gears, high tensile components
GB/T 3077 12Cr2Ni4A
Used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components.
Key Differences
Can EN 10083-3 34CrNiMo6 Be Substituted With GB/T 3077 12Cr2Ni4A?
EN 10083-3 34CrNiMo6 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
EN 10083-3 34CrNiMo6
Round Bar → (3 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3300–4000 mm (129.92–157.48 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
EN 10083-3 34CrNiMo6
3 active listings and RFQs →
GB/T 3077 12Cr2Ni4A
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN 10083-3 34CrNiMo6 and GB/T 3077 12Cr2Ni4A?
EN 10083-3 34CrNiMo6 specifies Mo which is not specified for GB/T 3077 12Cr2Ni4A.
Can EN 10083-3 34CrNiMo6 be substituted with GB/T 3077 12Cr2Ni4A?
EN 10083-3 34CrNiMo6 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.