Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
IS 4367 15Cr3 (IS 4367:1991) and GOST 4543 12HN3A (GOST 4543-2016) are both steel grades.
Both fall under the Alloy Steel category.
IS 4367 15Cr3 is typically used for low-alloy chromium case-hardening steel; used for gears, shafts, and transmission components requiring higher core strength and wear resistance than plain carbon case-hardening grades, while GOST 4543 12HN3A is commonly used for used for gears, pinions, crankshafts, aircraft parts, and transmission components..
IS 4367 15Cr3 is defined under Bureau of Indian Standards (IS) (India).
As per chemical composition, IS 4367 15Cr3 vs GOST 4543 12HN3A is a 76.9% 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
IS 4367 15Cr3
GOST 4543 12HN3A
Tensile Strength
600 MPa min
850-1050 MPa
Elongation
>=13%
11% min
Izod Impact
48 J min
Not specified
Hardness (soft annealed)
<=170 HB
Not specified
Condition
Refined, quenched and stress relieved (core properties), ruling section up to 30 mm
Not specified
Yield Strength
Not specified
685 MPa min
Hardness
Not specified
58-62 HRC (case)
Typical Applications
IS 4367 15Cr3
Low-alloy chromium case-hardening steel; used for gears, shafts, and transmission components requiring higher core strength and wear resistance than plain carbon case-hardening grades
GOST 4543 12HN3A
Used for gears, pinions, crankshafts, aircraft parts, and transmission components.
Key Differences
IS 4367 15Cr3 specifies S, P which are not specified for GOST 4543 12HN3A.
GOST 4543 12HN3A specifies Ni which is not specified for IS 4367 15Cr3.
Can IS 4367 15Cr3 Be Substituted With GOST 4543 12HN3A?
IS 4367 15Cr3 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 IS 4367 15Cr3 and GOST 4543 12HN3A?
IS 4367 15Cr3 specifies S, P which are not specified for GOST 4543 12HN3A. GOST 4543 12HN3A specifies Ni which is not specified for IS 4367 15Cr3.
Can IS 4367 15Cr3 be substituted with GOST 4543 12HN3A?
IS 4367 15Cr3 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.