Strong Match — 94.6% match
based on chemical composition and mechanical property overlap.
IS 1570 (Part 2/Sec 1) 25C4 (IS 1570 (Part 2/Sec 1):1979) and SAE J403 1023 (SAE J403:2001) are both steel grades.
Both fall under the Carbon Steel category.
IS 1570 (Part 2/Sec 1) 25C4 is defined under Bureau of Indian Standards (IS), originating from India, while SAE J403 1023 is defined under SAE International, originating from United States.
As per chemical composition, IS 1570 (Part 2/Sec 1) 25C4 vs SAE J403 1023 is a 94.6% 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 94.6%.
Frequently Compared With IS 1570 (Part 2/Sec 1) 25C4:
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 1570 (Part 2/Sec 1) 25C4
SAE J403 1023
Tensile Strength
440-540 MPa
Not specified
Elongation
>=23%
Not specified
Typical Applications
IS 1570 (Part 2/Sec 1) 25C4
Not documented
SAE J403 1023
Chemistry-only grade; product scope as listed in the composition notes
Key Differences
SAE J403 1023 specifies P, S which are not specified for IS 1570 (Part 2/Sec 1) 25C4.
Can IS 1570 (Part 2/Sec 1) 25C4 Be Substituted With SAE J403 1023?
IS 1570 (Part 2/Sec 1) 25C4 and SAE J403 1023 overlap closely enough on chemistry and mechanical properties that SAE J403 1023 is often considered as a substitute for IS 1570 (Part 2/Sec 1) 25C4 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 1570 (Part 2/Sec 1) 25C4 and SAE J403 1023?
SAE J403 1023 specifies P, S which are not specified for IS 1570 (Part 2/Sec 1) 25C4.
Can IS 1570 (Part 2/Sec 1) 25C4 be substituted with SAE J403 1023?
IS 1570 (Part 2/Sec 1) 25C4 and SAE J403 1023 overlap closely enough on chemistry and mechanical properties that SAE J403 1023 is often considered as a substitute for IS 1570 (Part 2/Sec 1) 25C4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.