Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
GOST 801 ShKh15 (GOST 801-1978) and GB/T 3077 12Cr2Ni4A (GB/T 3077-2015) are both steel grades.
Both fall under the Alloy Steel category.
GOST 801 ShKh15 is typically used for used for ball bearings, roller bearings, races, bearing rings, and precision rollers., while GB/T 3077 12Cr2Ni4A is commonly used for used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components..
GB/T 3077 12Cr2Ni4A is defined under Guobiao Standards (GB/T) (China).
As per chemical composition, GOST 801 ShKh15 vs GB/T 3077 12Cr2Ni4A is a 75% match.
As per mechanical properties, the match is 6.3%.
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
GOST 801 ShKh15
GB/T 3077 12Cr2Ni4A
Tensile Strength
750-950 MPa
980-1180 MPa
Yield Strength
450 MPa min
785-980 MPa
Elongation
8% min
10-14%
Hardness
60-66 HRC
58-62 HRC (case)
Typical Applications
GOST 801 ShKh15
Used for ball bearings, roller bearings, races, bearing rings, and precision rollers.
GB/T 3077 12Cr2Ni4A
Used for gears, shafts, pinions, aircraft parts, heavy-duty bearings, and transmission components.
Key Differences
GB/T 3077 12Cr2Ni4A specifies Ni, P, S which are not specified for GOST 801 ShKh15.
Can GOST 801 ShKh15 Be Substituted With GB/T 3077 12Cr2Ni4A?
GOST 801 ShKh15 and GB/T 3077 12Cr2Ni4A 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 801 ShKh15 and GB/T 3077 12Cr2Ni4A?
GB/T 3077 12Cr2Ni4A specifies Ni, P, S which are not specified for GOST 801 ShKh15.
Can GOST 801 ShKh15 be substituted with GB/T 3077 12Cr2Ni4A?
GOST 801 ShKh15 and GB/T 3077 12Cr2Ni4A 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.