Strong Match — 89.3% match
based on chemical composition and mechanical property overlap.
KS D3867 SCM435 (KS D 3867:2025) and SAE J404 4135 (SAE J404:2000) are both steel grades.
Both fall under the Alloy Steel category.
KS D3867 SCM435 is typically used for shafts,bolts,studs,axles,gears,structural components,fasteners,machine parts, while SAE J404 4135 is commonly used for chemistry-only alloy steel grade; see the composition notes for product scope.
KS D3867 SCM435 is defined under Korean Industrial Standards (KS), originating from South Korea, while SAE J404 4135 is defined under SAE International, originating from United States.
As per chemical composition, KS D3867 SCM435 vs SAE J404 4135 is a 89.3% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a strong match overall at 89.3%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
KS D3867 SCM435
SAE J404 4135
Tensile Strength
930-1080 MPa
Not specified
Yield Strength
785 MPa min
Not specified
Elongation
12-15 %
Not specified
Hardness
269-321 HB
Not specified
Typical Applications
KS D3867 SCM435
shafts,bolts,studs,axles,gears,structural components,fasteners,machine parts
SAE J404 4135
Chemistry-only alloy steel grade; see the composition notes for product scope
Can KS D3867 SCM435 Be Substituted With SAE J404 4135?
KS D3867 SCM435 and SAE J404 4135 overlap closely enough on chemistry and mechanical properties that SAE J404 4135 is often considered as a substitute for KS D3867 SCM435 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between KS D3867 SCM435 and SAE J404 4135?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can KS D3867 SCM435 be substituted with SAE J404 4135?
KS D3867 SCM435 and SAE J404 4135 overlap closely enough on chemistry and mechanical properties that SAE J404 4135 is often considered as a substitute for KS D3867 SCM435 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.