Minimal Match — 46.7% match
based on chemical composition and mechanical property overlap.
GOST 4543 40X (GOST 4543-2016) and GOST 4543 12HN3A (GOST 4543-2016) are both steel grades.
Both fall under the Alloy Steel category.
GOST 4543 40X is typically used for gears, shafts, axles, spindles, studs, automotive components, while GOST 4543 12HN3A is commonly used for used for gears, pinions, crankshafts, aircraft parts, and transmission components..
As per chemical composition, GOST 4543 40X vs GOST 4543 12HN3A is a 67.3% match.
As per mechanical properties, the match is 5.3%.
Combined, this makes them a minimal match overall at 46.7%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Used for gears, pinions, crankshafts, aircraft parts, and transmission components.
Key Differences
GOST 4543 40X specifies S, P, Cu which are not specified for GOST 4543 12HN3A.
Can GOST 4543 40X Be Substituted With GOST 4543 12HN3A?
GOST 4543 40X 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 GOST 4543 40X and GOST 4543 12HN3A?
GOST 4543 40X specifies S, P, Cu which are not specified for GOST 4543 12HN3A.
Can GOST 4543 40X be substituted with GOST 4543 12HN3A?
GOST 4543 40X 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.