IS 11169 (Part 1) 15Ni5Cr4Mo1 vs BS 970 (Part 1) 815M17
Close Alternative — 75.5% match
based on chemical composition and mechanical property overlap.
IS 11169 (Part 1) 15Ni5Cr4Mo1 (IS 11169 (Part 1):1984) and BS 970 (Part 1) 815M17 (BS 970 (Part 1):1983) are both steel grades.
Both fall under the Alloy Steel category.
IS 11169 (Part 1) 15Ni5Cr4Mo1 is typically used for cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1), while BS 970 (Part 1) 815M17 is commonly used for case hardening steel for mechanical and allied engineering purposes (table 11 mechanical properties)..
IS 11169 (Part 1) 15Ni5Cr4Mo1 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 815M17 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 11169 (Part 1) 15Ni5Cr4Mo1 vs BS 970 (Part 1) 815M17 is a 75.5% 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 75.5%.
Frequently Compared With IS 11169 (Part 1) 15Ni5Cr4Mo1:
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 11169 (Part 1) 15Ni5Cr4Mo1
BS 970 (Part 1) 815M17
Core Tensile Strength
>=1000 MPa (30 mm) / >=950 MPa (90 mm)
Not specified
Core Elongation
>=9% (30 mm)
Not specified
Hardness, annealed
<=180 HB
Not specified
Typical Applications
IS 11169 (Part 1) 15Ni5Cr4Mo1
Cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1)
BS 970 (Part 1) 815M17
Case hardening steel for mechanical and allied engineering purposes (Table 11 mechanical properties).
Key Differences
IS 11169 (Part 1) 15Ni5Cr4Mo1 specifies Si which is not specified for BS 970 (Part 1) 815M17.
BS 970 (Part 1) 815M17 specifies P, S which are not specified for IS 11169 (Part 1) 15Ni5Cr4Mo1.
Can IS 11169 (Part 1) 15Ni5Cr4Mo1 Be Substituted With BS 970 (Part 1) 815M17?
IS 11169 (Part 1) 15Ni5Cr4Mo1 and BS 970 (Part 1) 815M17 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 11169 (Part 1) 15Ni5Cr4Mo1 and BS 970 (Part 1) 815M17?
IS 11169 (Part 1) 15Ni5Cr4Mo1 specifies Si which is not specified for BS 970 (Part 1) 815M17. BS 970 (Part 1) 815M17 specifies P, S which are not specified for IS 11169 (Part 1) 15Ni5Cr4Mo1.
Can IS 11169 (Part 1) 15Ni5Cr4Mo1 be substituted with BS 970 (Part 1) 815M17?
IS 11169 (Part 1) 15Ni5Cr4Mo1 and BS 970 (Part 1) 815M17 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.