Close Alternative — 78.9% match
based on chemical composition and mechanical property overlap.
EN 10084 18CrNiMo7-6 (EN 10084:2008) and IS 4367 16Ni8Cr6Mo2 (IS 4367:1991) are both steel grades.
Both fall under the Alloy Steel category.
EN 10084 18CrNiMo7-6 is typically used for case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1), while IS 4367 16Ni8Cr6Mo2 is commonly used for gears, camshafts, piston pins, splined shafts, aerospace and automotive case-hardened components..
EN 10084 18CrNiMo7-6 is defined under European Standard (EN), originating from Europe, while IS 4367 16Ni8Cr6Mo2 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, EN 10084 18CrNiMo7-6 vs IS 4367 16Ni8Cr6Mo2 is a 68.4% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a close alternative overall at 78.9%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10084 18CrNiMo7-6
IS 4367 16Ni8Cr6Mo2
Condition
Soft annealed
Refined, quenched and stress relieved (core properties), ruling section up to 30 mm
Hardenability
+H band at 1.5 mm from the quenched end: 40 to 48 HRC
Not specified
Hardness
Soft annealed: 229 HB max
Not specified
Tensile Strength
Not specified
1350 MPa min
Elongation
Not specified
>=9%
Izod Impact
Not specified
35 J min
Hardness (soft annealed)
Not specified
<=229 HB
Typical Applications
EN 10084 18CrNiMo7-6
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
Can EN 10084 18CrNiMo7-6 Be Substituted With IS 4367 16Ni8Cr6Mo2?
EN 10084 18CrNiMo7-6 and IS 4367 16Ni8Cr6Mo2 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 EN 10084 18CrNiMo7-6 and IS 4367 16Ni8Cr6Mo2?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can EN 10084 18CrNiMo7-6 be substituted with IS 4367 16Ni8Cr6Mo2?
EN 10084 18CrNiMo7-6 and IS 4367 16Ni8Cr6Mo2 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.