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AISI 8617 vs GOST 4543 12HN3A

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

AISI 8617 and GOST 4543 12HN3A (GOST 4543-2016) are both steel grades. Both fall under the Alloy Steel category. AISI 8617 is typically used for used for gears, camshafts, transmission parts, pinions, bearings, and heavy-duty mechanical components., while GOST 4543 12HN3A is commonly used for used for gears, pinions, crankshafts, aircraft parts, and transmission components.. AISI 8617 is defined under AISI (United States).

As per chemical composition, AISI 8617 vs GOST 4543 12HN3A is a 58.3% match. As per mechanical properties, the match is 5.3%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With AISI 8617:
NF A35-565 100C6 UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
58.3%
MECHANICAL MATCH
5.3%
OVERALL
35%
Specifications
Property AISI 8617 GOST 4543 12HN3A
Standard AISI GOST 4543-2016
Category Alloy Steel Alloy Steel
C (%) 0.15-0.20 0.09-0.16
Mn (%) 0.70-0.90 0.3-0.6
Si (%) 0.15-0.35 0.17-0.37
Ni (%) 0.40-0.70 2.75-3.15
Cr (%) 0.40-0.60 0.6-0.9
Mo (%) 0.15-0.25 Not specified
P (%) 0.035 max Not specified
S (%) 0.040 max 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 AISI 8617 GOST 4543 12HN3A
Tensile Strength 720-920 MPa 850-1050 MPa
Yield Strength 520-720 MPa 685 MPa min
Elongation 12-18% 11% min
Hardness 190-250 HB 58-62 HRC (case)
Typical Applications
AISI 8617
Used for gears, camshafts, transmission parts, pinions, bearings, and heavy-duty mechanical components.
GOST 4543 12HN3A
Used for gears, pinions, crankshafts, aircraft parts, and transmission components.
Key Differences
Can AISI 8617 Be Substituted With GOST 4543 12HN3A?
AISI 8617 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.
Forms & Sizes Available on M-EX
AISI 8617
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5100–6600 mm (200.79–259.84 in)
GOST 4543 12HN3A
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5600–6600 mm (220.47–259.84 in)
On M-EX Right Now
AISI 8617
2 active listings and RFQs →
GOST 4543 12HN3A
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between AISI 8617 and GOST 4543 12HN3A?
AISI 8617 specifies Mo, P, S which are not specified for GOST 4543 12HN3A.
Can AISI 8617 be substituted with GOST 4543 12HN3A?
AISI 8617 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.