Close Alternative — 84.2% match
based on chemical composition and mechanical property overlap.
IS 4432 15Cr3-S (IS 4432:1988) and SAE J404 5115 (SAE J404:2009) are both steel grades.
Both fall under the Alloy Steel category.
IS 4432 15Cr3-S is typically used for forgings and fabrication of case-hardened machine or automobile parts, while SAE J404 5115 is commonly used for case hardened gears, cams, shafts.
IS 4432 15Cr3-S is defined under Bureau of Indian Standards (IS), originating from India, while SAE J404 5115 is defined under SAE International, originating from United States.
As per chemical composition, IS 4432 15Cr3-S vs SAE J404 5115 is a 84.2% 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 84.2%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 4432 15Cr3-S
SAE J404 5115
Core Tensile Strength
650-900 MPa (16 mm) / 600-900 MPa (30 mm)
Not specified
Core Yield Strength
>=430 MPa (16 mm) / >=360 MPa (30 mm)
Not specified
Core Elongation
>=12% (16 mm) / >=14% (30 mm)
Not specified
Core Reduction of Area
>=35% (16 mm) / >=40% (30 mm)
Not specified
Hardness, annealed (A)
<=174 HB
Not specified
Typical Applications
IS 4432 15Cr3-S
Forgings and fabrication of case-hardened machine or automobile parts
SAE J404 5115
Case hardened gears, cams, shafts
Can IS 4432 15Cr3-S Be Substituted With SAE J404 5115?
IS 4432 15Cr3-S and SAE J404 5115 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 IS 4432 15Cr3-S and SAE J404 5115?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 4432 15Cr3-S be substituted with SAE J404 5115?
IS 4432 15Cr3-S and SAE J404 5115 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.