Strong Match — 90.4% match
based on chemical composition and mechanical property overlap.
BS 970 (Part 3) 820M17 (BS 970 (Part 3):1991) and IS 4367 15Ni7Cr4Mo2 (IS 4367:1991) are both steel grades.
Both fall under the Alloy Steel category.
BS 970 (Part 3) 820M17 is defined under British Standards (BS), originating from United Kingdom, while IS 4367 15Ni7Cr4Mo2 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 (Part 3) 820M17 vs IS 4367 15Ni7Cr4Mo2 is a 90.4% 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 90.4%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
BS 970 (Part 3) 820M17
IS 4367 15Ni7Cr4Mo2
Tensile Strength
Not specified
1100 MPa min
Elongation
Not specified
>=9%
Izod Impact
Not specified
35 J min
Hardness (soft annealed)
Not specified
<=217 HB
Condition
Not specified
Refined, quenched and stress relieved (core properties), ruling section up to 30 mm
Typical Applications
BS 970 (Part 3) 820M17
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy case hardening steel (Table 15)
IS 4367 15Ni7Cr4Mo2
Not documented
Can BS 970 (Part 3) 820M17 Be Substituted With IS 4367 15Ni7Cr4Mo2?
BS 970 (Part 3) 820M17 and IS 4367 15Ni7Cr4Mo2 overlap closely enough on chemistry and mechanical properties that IS 4367 15Ni7Cr4Mo2 is often considered as a substitute for BS 970 (Part 3) 820M17 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 BS 970 (Part 3) 820M17 and IS 4367 15Ni7Cr4Mo2?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 3) 820M17 be substituted with IS 4367 15Ni7Cr4Mo2?
BS 970 (Part 3) 820M17 and IS 4367 15Ni7Cr4Mo2 overlap closely enough on chemistry and mechanical properties that IS 4367 15Ni7Cr4Mo2 is often considered as a substitute for BS 970 (Part 3) 820M17 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.