Close Alternative — 76.8% match
based on chemical composition and mechanical property overlap.
IS 4367 15Ni5Cr4Mo1 (IS 4367:1991) and BS 970 (Part 3) 820M17 (BS 970 (Part 3):1991) are both steel grades.
Both fall under the Alloy Steel category.
IS 4367 15Ni5Cr4Mo1 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 3) 820M17 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 4367 15Ni5Cr4Mo1 vs BS 970 (Part 3) 820M17 is a 76.8% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a close alternative overall at 76.8%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 4367 15Ni5Cr4Mo1
BS 970 (Part 3) 820M17
Tensile Strength
1000 MPa min
Not specified
Elongation
>=9%
Not specified
Izod Impact
41 J min
Not specified
Hardness (soft annealed)
<=217 HB
Not specified
Condition
Refined, quenched and stress relieved (core properties), ruling section up to 30 mm
Not specified
Typical Applications
IS 4367 15Ni5Cr4Mo1
Not documented
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)
Can IS 4367 15Ni5Cr4Mo1 Be Substituted With BS 970 (Part 3) 820M17?
IS 4367 15Ni5Cr4Mo1 and BS 970 (Part 3) 820M17 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 4367 15Ni5Cr4Mo1 and BS 970 (Part 3) 820M17?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 4367 15Ni5Cr4Mo1 be substituted with BS 970 (Part 3) 820M17?
IS 4367 15Ni5Cr4Mo1 and BS 970 (Part 3) 820M17 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.