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