Strong Match — 92.2% match
based on chemical composition and mechanical property overlap.
IS 5517 40Ni6Cr4Mo2 (IS 5517:1993) and IS 5517 40Ni6Cr4Mo3 (IS 5517:1993) are both steel grades.
Both fall under the Alloy Steel category.
IS 5517 40Ni6Cr4Mo2 is defined under Bureau of Indian Standards (IS), originating from India, while IS 5517 40Ni6Cr4Mo3 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, IS 5517 40Ni6Cr4Mo2 vs IS 5517 40Ni6Cr4Mo3 is a 88.3% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 92.2%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 5517 40Ni6Cr4Mo2
IS 5517 40Ni6Cr4Mo3
Tensile Strength
800-950 MPa
800-950 MPa
Yield Strength (0.2% proof)
600 MPa min
600 MPa min
Elongation
>=16%
>=16%
Izod Impact
55 J min
55 J min
Hardness (annealed)
<=241 HB
<=241 HB
Condition
Hardened and tempered, ruling section up to 150 mm
Hardened and tempered, ruling section up to 150 mm
Can IS 5517 40Ni6Cr4Mo2 Be Substituted With IS 5517 40Ni6Cr4Mo3?
IS 5517 40Ni6Cr4Mo2 and IS 5517 40Ni6Cr4Mo3 overlap closely enough on chemistry and mechanical properties that IS 5517 40Ni6Cr4Mo3 is often considered as a substitute for IS 5517 40Ni6Cr4Mo2 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 40Ni6Cr4Mo2 and IS 5517 40Ni6Cr4Mo3?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 5517 40Ni6Cr4Mo2 be substituted with IS 5517 40Ni6Cr4Mo3?
IS 5517 40Ni6Cr4Mo2 and IS 5517 40Ni6Cr4Mo3 overlap closely enough on chemistry and mechanical properties that IS 5517 40Ni6Cr4Mo3 is often considered as a substitute for IS 5517 40Ni6Cr4Mo2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.