Close Alternative — 80.1% match
based on chemical composition and mechanical property overlap.
GOST 4543 20HM (GOST 4543-2016) and SAE J404 4130 (SAE J404:2000) are both steel grades.
Both fall under the Alloy Steel category.
GOST 4543 20HM is typically used for used for gears, camshafts, sleeves, axles, and machine transmission parts., while SAE J404 4130 is commonly used for chemistry-only alloy steel grade; see the composition notes for product scope.
SAE J404 4130 is defined under SAE International (United States).
As per chemical composition, GOST 4543 20HM vs SAE J404 4130 is a 80.1% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a close alternative overall at 80.1%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
GOST 4543 20HM
SAE J404 4130
Tensile Strength
780-980 MPa
Not specified
Yield Strength
590 MPa min
Not specified
Elongation
12% min
Not specified
Hardness
56-60 HRC (case)
Not specified
Typical Applications
GOST 4543 20HM
Used for gears, camshafts, sleeves, axles, and machine transmission parts.
SAE J404 4130
Chemistry-only alloy steel grade; see the composition notes for product scope
Key Differences
SAE J404 4130 specifies P, S which are not specified for GOST 4543 20HM.
Can GOST 4543 20HM Be Substituted With SAE J404 4130?
GOST 4543 20HM and SAE J404 4130 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
What is the difference between GOST 4543 20HM and SAE J404 4130?
SAE J404 4130 specifies P, S which are not specified for GOST 4543 20HM.
Can GOST 4543 20HM be substituted with SAE J404 4130?
GOST 4543 20HM and SAE J404 4130 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.