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EN 10084 20NiCrMo2-2 vs GOST 4543 12HN3A

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

EN 10084 20NiCrMo2-2 (EN 10084:2008) and GOST 4543 12HN3A (GOST 4543-2016) are both steel grades. Both fall under the Alloy Steel category. EN 10084 20NiCrMo2-2 is typically used for gears, shafts and automotive transmission components, while GOST 4543 12HN3A is commonly used for used for gears, pinions, crankshafts, aircraft parts, and transmission components.. EN 10084 20NiCrMo2-2 is defined under European Standard (EN) (Europe).

As per chemical composition, EN 10084 20NiCrMo2-2 vs GOST 4543 12HN3A is a 56.4% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With EN 10084 20NiCrMo2-2:
NF A35-565 100C6 UNI 11234 100Cr6 GB/T 3077 12Cr2Ni4A IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Cr20Mo6 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
56.4%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property EN 10084 20NiCrMo2-2 GOST 4543 12HN3A
Standard EN 10084:2008 GOST 4543-2016
Category Alloy Steel Alloy Steel
C (%) 0.17-0.23 0.09-0.16
Cr (%) 0.35-0.70 0.6-0.9
Mn (%) 0.65-0.95 0.3-0.6
Mo (%) 0.15-0.25 Not specified
Ni (%) 0.40-0.70 2.75-3.15
P (%) <=0.025 Not specified
S (%) <=0.035 Not specified
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 10084 20NiCrMo2-2 GOST 4543 12HN3A
Condition Soft annealed Not specified
Hardenability +H band at 1.5 mm from the quenched end: 41 to 49 HRC Not specified
Hardness Soft annealed: 212 HB max 58-62 HRC (case)
Tensile Strength Not specified 850-1050 MPa
Yield Strength Not specified 685 MPa min
Elongation Not specified 11% min
Typical Applications
EN 10084 20NiCrMo2-2
Gears, shafts and automotive transmission components
GOST 4543 12HN3A
Used for gears, pinions, crankshafts, aircraft parts, and transmission components.
Key Differences
Can EN 10084 20NiCrMo2-2 Be Substituted With GOST 4543 12HN3A?
EN 10084 20NiCrMo2-2 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
EN 10084 20NiCrMo2-2
Round Bar → (5 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5400–6900 mm (212.6–271.65 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
EN 10084 20NiCrMo2-2
5 active listings and RFQs →
GOST 4543 12HN3A
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN 10084 20NiCrMo2-2 and GOST 4543 12HN3A?
EN 10084 20NiCrMo2-2 specifies Mo, P, S which are not specified for GOST 4543 12HN3A.
Can EN 10084 20NiCrMo2-2 be substituted with GOST 4543 12HN3A?
EN 10084 20NiCrMo2-2 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.