Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
DIN 17210 20MnCr5 (DIN 17210:1986) and GOST 4543 12HN3A (GOST 4543-2016) are both steel grades.
Both fall under the Alloy Steel category.
DIN 17210 20MnCr5 is typically used for gears, shafts, cams, pins, case hardened transmission components, while GOST 4543 12HN3A is commonly used for used for gears, pinions, crankshafts, aircraft parts, and transmission components..
DIN 17210 20MnCr5 is defined under Deutsches Institut fur Normung (DIN) (Germany).
As per chemical composition, DIN 17210 20MnCr5 vs GOST 4543 12HN3A is a 62.9% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 35%.
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 20MnCr5
GOST 4543 12HN3A
Tensile Strength
800–1000 MPa
850-1050 MPa
Case Hardness HRC
58–62
Not specified
Core Hardness HB
229–293
Not specified
Elongation
≥10%
11% min
Yield Strength
Not specified
685 MPa min
Hardness
Not specified
58-62 HRC (case)
Typical Applications
DIN 17210 20MnCr5
Gears, shafts, cams, pins, case hardened transmission components
GOST 4543 12HN3A
Used for gears, pinions, crankshafts, aircraft parts, and transmission components.
Key Differences
DIN 17210 20MnCr5 specifies S, P which are not specified for GOST 4543 12HN3A.
GOST 4543 12HN3A specifies Ni which is not specified for DIN 17210 20MnCr5.
Can DIN 17210 20MnCr5 Be Substituted With GOST 4543 12HN3A?
DIN 17210 20MnCr5 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.
What is the difference between DIN 17210 20MnCr5 and GOST 4543 12HN3A?
DIN 17210 20MnCr5 specifies S, P which are not specified for GOST 4543 12HN3A. GOST 4543 12HN3A specifies Ni which is not specified for DIN 17210 20MnCr5.
Can DIN 17210 20MnCr5 be substituted with GOST 4543 12HN3A?
DIN 17210 20MnCr5 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.