Strong Match — 92.1% match
based on chemical composition and mechanical property overlap.
SAE J404 8720 (SAE J404:2009) and IS 4367 20NiCrMo2 (IS 4367:1991) are both steel grades.
Both fall under the Alloy Steel category.
SAE J404 8720 is typically used for chemistry-only alloy steel grade; see the composition notes for product scope, while IS 4367 20NiCrMo2 is commonly used for nickel-chromium-molybdenum case-hardening steel; used for highly stressed gears, shafts, and transmission components requiring high core strength, toughness, and wear-resistant carburized surface.
SAE J404 8720 is defined under SAE International, originating from United States, while IS 4367 20NiCrMo2 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, SAE J404 8720 vs IS 4367 20NiCrMo2 is a 92.1% 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 92.1%.
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 8720
IS 4367 20NiCrMo2
Tensile Strength
Not specified
900 MPa min
Elongation
Not specified
>=11%
Izod Impact
Not specified
41 J min
Hardness (soft annealed)
Not specified
<=213 HB
Condition
Not specified
Refined, quenched and stress relieved (core properties), ruling section up to 30 mm
Typical Applications
SAE J404 8720
Chemistry-only alloy steel grade; see the composition notes for product scope
IS 4367 20NiCrMo2
Nickel-chromium-molybdenum case-hardening steel; used for highly stressed gears, shafts, and transmission components requiring high core strength, toughness, and wear-resistant carburized surface
Can SAE J404 8720 Be Substituted With IS 4367 20NiCrMo2?
SAE J404 8720 and IS 4367 20NiCrMo2 overlap closely enough on chemistry and mechanical properties that IS 4367 20NiCrMo2 is often considered as a substitute for SAE J404 8720 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 8720 and IS 4367 20NiCrMo2?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can SAE J404 8720 be substituted with IS 4367 20NiCrMo2?
SAE J404 8720 and IS 4367 20NiCrMo2 overlap closely enough on chemistry and mechanical properties that IS 4367 20NiCrMo2 is often considered as a substitute for SAE J404 8720 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.