Strong Match — 98.3% match
based on chemical composition and mechanical property overlap.
IS 1570 (Part 4) 20Ni7Mo2 (IS 1570 (Part 4):1988) and SAE J404 4620 (SAE J404:2009) are both steel grades.
Both fall under the Alloy Steel category.
IS 1570 (Part 4) 20Ni7Mo2 is defined under Bureau of Indian Standards (IS), originating from India, while SAE J404 4620 is defined under SAE International, originating from United States.
As per chemical composition, IS 1570 (Part 4) 20Ni7Mo2 vs SAE J404 4620 is a 98.3% 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 98.3%.
Frequently Compared With IS 1570 (Part 4) 20Ni7Mo2:
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Typical Applications
IS 1570 (Part 4) 20Ni7Mo2
Not documented
SAE J404 4620
Used for gears, bearings, shafts, transmission parts, pinions, and heavy-duty carburized components.
Key Differences
SAE J404 4620 specifies P, S which are not specified for IS 1570 (Part 4) 20Ni7Mo2.
Can IS 1570 (Part 4) 20Ni7Mo2 Be Substituted With SAE J404 4620?
IS 1570 (Part 4) 20Ni7Mo2 and SAE J404 4620 overlap closely enough on chemistry and mechanical properties that SAE J404 4620 is often considered as a substitute for IS 1570 (Part 4) 20Ni7Mo2 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 4) 20Ni7Mo2 and SAE J404 4620?
SAE J404 4620 specifies P, S which are not specified for IS 1570 (Part 4) 20Ni7Mo2.
Can IS 1570 (Part 4) 20Ni7Mo2 be substituted with SAE J404 4620?
IS 1570 (Part 4) 20Ni7Mo2 and SAE J404 4620 overlap closely enough on chemistry and mechanical properties that SAE J404 4620 is often considered as a substitute for IS 1570 (Part 4) 20Ni7Mo2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.