Strong Match — 90.6% match
based on chemical composition and mechanical property overlap.
IS 5517 40C15S12 (IS 5517:1993) and SAE J403 1141 (SAE J403:2001) are both steel grades.
Both fall under the Free Machining Steel category.
IS 5517 40C15S12 is defined under Bureau of Indian Standards (IS), originating from India, while SAE J403 1141 is defined under SAE International, originating from United States.
As per chemical composition, IS 5517 40C15S12 vs SAE J403 1141 is a 90.6% 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 90.6%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 5517 40C15S12
SAE J403 1141
Tensile Strength
700-850 MPa
Not specified
Yield Strength (0.2% proof)
500 MPa min
Not specified
Elongation
>=18%
Not specified
Izod Impact
35 J min
Not specified
Hardness (annealed)
<=200 HB
Not specified
Condition
Hardened and tempered, ruling section up to 60 mm
Not specified
Typical Applications
IS 5517 40C15S12
Not documented
SAE J403 1141
Chemistry-only grade; product scope as listed in the composition notes
Key Differences
IS 5517 40C15S12 specifies Si which is not specified for SAE J403 1141.
Can IS 5517 40C15S12 Be Substituted With SAE J403 1141?
IS 5517 40C15S12 and SAE J403 1141 overlap closely enough on chemistry and mechanical properties that SAE J403 1141 is often considered as a substitute for IS 5517 40C15S12 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 IS 5517 40C15S12 and SAE J403 1141?
IS 5517 40C15S12 specifies Si which is not specified for SAE J403 1141.
Can IS 5517 40C15S12 be substituted with SAE J403 1141?
IS 5517 40C15S12 and SAE J403 1141 overlap closely enough on chemistry and mechanical properties that SAE J403 1141 is often considered as a substitute for IS 5517 40C15S12 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.