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ASTM A514 vs GB/T 3077 12Cr2Ni4A

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

ASTM A514 (ASTM A514) and GB/T 3077 12Cr2Ni4A (GB/T 3077-2015) are both steel grades. Both fall under the Alloy Steel category. ASTM A514 is typically used for used for cranes, mining equipment, pressure vessels, bridges, heavy trucks, and structural fabrication., while GB/T 3077 12Cr2Ni4A is commonly used for used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components.. ASTM A514 is defined under ASTM International, originating from United States, while GB/T 3077 12Cr2Ni4A is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, ASTM A514 vs GB/T 3077 12Cr2Ni4A is a 61.3% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With ASTM A514:
GOST 4543 12HN3A NF A35-565 100C6 UNI 11234 100Cr6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 4) 103Cr6 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
61.3%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property ASTM A514 GB/T 3077 12Cr2Ni4A
Standard ASTM A514 GB/T 3077-2015
Category Alloy Steel Alloy Steel
C (%) 0.12-0.21 0.10-0.15
Mn (%) 0.70-1.60 0.30-0.60
Si (%) 0.15-0.40 0.17-0.37
Cr (%) 0.40-1.50 1.25-1.65
Mo (%) 0.15-0.60 Not specified
Ni (%) 0.40-1.00 3.25-3.75
P (%) 0.035 max 0.025 max
S (%) 0.035 max 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 ASTM A514 GB/T 3077 12Cr2Ni4A
Tensile Strength 760-895 MPa 980-1180 MPa
Yield Strength 690 MPa min 785-980 MPa
Elongation 16-18% 10-14%
Hardness 235-293 HB 58-62 HRC (case)
Typical Applications
ASTM A514
Used for cranes, mining equipment, pressure vessels, bridges, heavy trucks, and structural fabrication.
GB/T 3077 12Cr2Ni4A
Used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components.
Key Differences
Can ASTM A514 Be Substituted With GB/T 3077 12Cr2Ni4A?
ASTM A514 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
ASTM A514
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5800–6500 mm (228.35–255.91 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
ASTM A514
2 active listings and RFQs →
GB/T 3077 12Cr2Ni4A
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A514 and GB/T 3077 12Cr2Ni4A?
ASTM A514 specifies Mo which is not specified for GB/T 3077 12Cr2Ni4A.
Can ASTM A514 be substituted with GB/T 3077 12Cr2Ni4A?
ASTM A514 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.