Close Alternative — 71% match
based on chemical composition and mechanical property overlap.
IS 5517 40Ni10Cr3Mo6 (IS 5517:1993) and IS 5517 31Ni10Cr3Mo6 (IS 5517:1993) are both steel grades.
Both fall under the Alloy Steel category.
IS 5517 40Ni10Cr3Mo6 is defined under Bureau of Indian Standards (IS), originating from India, while IS 5517 31Ni10Cr3Mo6 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, IS 5517 40Ni10Cr3Mo6 vs IS 5517 31Ni10Cr3Mo6 is a 91.4% match.
As per mechanical properties, the match is 30%.
Combined, this makes them a close alternative overall at 71%.
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 40Ni10Cr3Mo6
IS 5517 31Ni10Cr3Mo6
Tensile Strength
1000-1150 MPa
900-1050 MPa
Yield Strength (0.2% proof)
800 MPa min
700 MPa min
Elongation
>=12%
>=15%
Izod Impact
48 J min
55 J min
Hardness (annealed)
<=269 HB
<=269 HB
Condition
Hardened and tempered, ruling section up to 150 mm
Hardened and tempered, ruling section up to 150 mm
Can IS 5517 40Ni10Cr3Mo6 Be Substituted With IS 5517 31Ni10Cr3Mo6?
IS 5517 40Ni10Cr3Mo6 and IS 5517 31Ni10Cr3Mo6 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
What is the difference between IS 5517 40Ni10Cr3Mo6 and IS 5517 31Ni10Cr3Mo6?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 5517 40Ni10Cr3Mo6 be substituted with IS 5517 31Ni10Cr3Mo6?
IS 5517 40Ni10Cr3Mo6 and IS 5517 31Ni10Cr3Mo6 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.