Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
EN 10084 17CrNiMo6 (EN 10084:1998) and GOST 4543 12HN3A (GOST 4543-2016) are both steel grades.
Both fall under the Alloy Steel category.
EN 10084 17CrNiMo6 is typically used for used in heavy-duty gears, pinions, drive shafts, transmission parts, and industrial gearboxes., while GOST 4543 12HN3A is commonly used for used for gears, pinions, crankshafts, aircraft parts, and transmission components..
EN 10084 17CrNiMo6 is defined under European Standard (EN) (Europe).
As per chemical composition, EN 10084 17CrNiMo6 vs GOST 4543 12HN3A is a 58.2% match.
As per mechanical properties, the match is 10.7%.
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
EN 10084 17CrNiMo6
GOST 4543 12HN3A
Tensile Strength
900-1200 MPa
850-1050 MPa
Yield Strength
750 MPa min
685 MPa min
Elongation
9-12%
11% min
Hardness
280-340 HB
58-62 HRC (case)
Typical Applications
EN 10084 17CrNiMo6
Used in heavy-duty gears, pinions, drive shafts, transmission parts, and industrial gearboxes.
GOST 4543 12HN3A
Used for gears, pinions, crankshafts, aircraft parts, and transmission components.
Key Differences
EN 10084 17CrNiMo6 specifies Mo, P, S which are not specified for GOST 4543 12HN3A.
Can EN 10084 17CrNiMo6 Be Substituted With GOST 4543 12HN3A?
EN 10084 17CrNiMo6 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 EN 10084 17CrNiMo6 and GOST 4543 12HN3A?
EN 10084 17CrNiMo6 specifies Mo, P, S which are not specified for GOST 4543 12HN3A.
Can EN 10084 17CrNiMo6 be substituted with GOST 4543 12HN3A?
EN 10084 17CrNiMo6 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.