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AISI 3310 vs GB/T 3077 12Cr2Ni4A

Minimal Match — 53.6% match based on chemical composition and mechanical property overlap.

AISI 3310 and GB/T 3077 12Cr2Ni4A (GB/T 3077-2015) are both steel grades. Both fall under the Alloy Steel category. AISI 3310 is typically used for aircraft gears, heavily stressed case hardened parts, while GB/T 3077 12Cr2Ni4A is commonly used for used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components.. AISI 3310 is defined under AISI, originating from United States, while GB/T 3077 12Cr2Ni4A is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, AISI 3310 vs GB/T 3077 12Cr2Ni4A is a 80.3% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 53.6%.

Frequently Compared With AISI 3310:
UNI 11234 100Cr6 NF A35-565 100C6 GOST 4543 12HN3A IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
80.3%
MECHANICAL MATCH
0%
OVERALL
53.6%
Specifications
Property AISI 3310 GB/T 3077 12Cr2Ni4A
Standard AISI GB/T 3077-2015
Category Alloy Steel Alloy Steel
C (%) 0.08–0.13 0.10-0.15
Mn (%) 0.40-0.60 0.30-0.60
Cr (%) 1.40–1.75 1.25-1.65
Ni (%) 3.25–3.75 3.25-3.75
Si (%) Not specified 0.17-0.37
P (%) Not specified 0.025 max
S (%) Not specified 0.025 max
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property AISI 3310 GB/T 3077 12Cr2Ni4A
Tensile Strength 900–1100 MPa 980-1180 MPa
Case Hardness HRC 60–65 Not specified
Elongation ≥10% 10-14%
Yield Strength Not specified 785-980 MPa
Hardness Not specified 58-62 HRC (case)
Typical Applications
AISI 3310
Aircraft gears, heavily stressed case hardened parts
GB/T 3077 12Cr2Ni4A
Used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components.
Key Differences
Can AISI 3310 Be Substituted With GB/T 3077 12Cr2Ni4A?
AISI 3310 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
AISI 3310
Round Bar → (3 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 4900–5600 mm (192.91–220.47 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
AISI 3310
3 active listings and RFQs →
GB/T 3077 12Cr2Ni4A
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between AISI 3310 and GB/T 3077 12Cr2Ni4A?
GB/T 3077 12Cr2Ni4A specifies Si, P, S which are not specified for AISI 3310.
Can AISI 3310 be substituted with GB/T 3077 12Cr2Ni4A?
AISI 3310 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.