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DIN 17210 18CrNiMo6 vs GOST 4543 12HN3A

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

DIN 17210 18CrNiMo6 (DIN 17210:1986) and GOST 4543 12HN3A (GOST 4543-2016) are both steel grades. Both fall under the Alloy Steel category. DIN 17210 18CrNiMo6 is typically used for heavy duty gears, shafts, cams, axles, case hardened transmission components, while GOST 4543 12HN3A is commonly used for used for gears, pinions, crankshafts, aircraft parts, and transmission components.. DIN 17210 18CrNiMo6 is defined under Deutsches Institut fur Normung (DIN) (Germany).

As per chemical composition, DIN 17210 18CrNiMo6 vs GOST 4543 12HN3A is a 60.5% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With DIN 17210 18CrNiMo6:
GB/T 3077 12Cr2Ni4A NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr6 IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
60.5%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property DIN 17210 18CrNiMo6 GOST 4543 12HN3A
Standard DIN 17210:1986 GOST 4543-2016
Category Alloy Steel Alloy Steel
C (%) 0.15–0.21 0.09-0.16
Mn (%) 0.50–0.90 0.3-0.6
Cr (%) 1.50–1.80 0.6-0.9
Ni (%) 1.40–1.70 2.75-3.15
Mo (%) 0.25–0.35 Not specified
Si (%) 0.15–0.40 0.17-0.37
S (%) ≤0.035 Not specified
P (%) ≤0.035 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 DIN 17210 18CrNiMo6 GOST 4543 12HN3A
Tensile Strength 1000–1200 MPa 850-1050 MPa
Case Hardness HRC 58–63 Not specified
Core Hardness HB 280–340 Not specified
Elongation ≥9% 11% min
Yield Strength Not specified 685 MPa min
Hardness Not specified 58-62 HRC (case)
Typical Applications
DIN 17210 18CrNiMo6
Heavy duty gears, shafts, cams, axles, case hardened transmission components
GOST 4543 12HN3A
Used for gears, pinions, crankshafts, aircraft parts, and transmission components.
Key Differences
Can DIN 17210 18CrNiMo6 Be Substituted With GOST 4543 12HN3A?
DIN 17210 18CrNiMo6 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
DIN 17210 18CrNiMo6
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5000–5400 mm (196.85–212.6 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
DIN 17210 18CrNiMo6
2 active listings and RFQs →
GOST 4543 12HN3A
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between DIN 17210 18CrNiMo6 and GOST 4543 12HN3A?
DIN 17210 18CrNiMo6 specifies Mo, S, P which are not specified for GOST 4543 12HN3A.
Can DIN 17210 18CrNiMo6 be substituted with GOST 4543 12HN3A?
DIN 17210 18CrNiMo6 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.