BS 970 (Part 1) 635M15 vs IS 11169 (Part 1) 16Ni3Cr2
Close Alternative — 83.7% match
based on chemical composition and mechanical property overlap.
BS 970 (Part 1) 635M15 (BS 970 (Part 1):1991) and IS 11169 (Part 1) 16Ni3Cr2 (IS 11169 (Part 1):2022) are both steel grades.
Both fall under the Alloy Steel category.
BS 970 (Part 1) 635M15 is typically used for case hardening steel (section four), while IS 11169 (Part 1) 16Ni3Cr2 is commonly used for cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex b).
BS 970 (Part 1) 635M15 is defined under British Standards (BS), originating from United Kingdom, while IS 11169 (Part 1) 16Ni3Cr2 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 (Part 1) 635M15 vs IS 11169 (Part 1) 16Ni3Cr2 is a 83.7% 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 83.7%.
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 1) 635M15
IS 11169 (Part 1) 16Ni3Cr2
Condition
Case hardened, 19 mm test bar
Not specified
Tensile Strength
770 MPa min
Not specified
Elongation
12 % min
Not specified
Hardness, annealed (+AC)
Not specified
<=160 HBW
Typical Applications
BS 970 (Part 1) 635M15
Case hardening steel (section four)
IS 11169 (Part 1) 16Ni3Cr2
Cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex B)
Key Differences
IS 11169 (Part 1) 16Ni3Cr2 specifies Cu, Mo, P, S which are not specified for BS 970 (Part 1) 635M15.
Can BS 970 (Part 1) 635M15 Be Substituted With IS 11169 (Part 1) 16Ni3Cr2?
BS 970 (Part 1) 635M15 and IS 11169 (Part 1) 16Ni3Cr2 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 BS 970 (Part 1) 635M15 and IS 11169 (Part 1) 16Ni3Cr2?
IS 11169 (Part 1) 16Ni3Cr2 specifies Cu, Mo, P, S which are not specified for BS 970 (Part 1) 635M15.
Can BS 970 (Part 1) 635M15 be substituted with IS 11169 (Part 1) 16Ni3Cr2?
BS 970 (Part 1) 635M15 and IS 11169 (Part 1) 16Ni3Cr2 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.