Close Alternative — 83.8% match
based on chemical composition and mechanical property overlap.
BS 970 (Part 1) 523H15 (BS 970 (Part 1):1991) and IS 4367 15Cr3 (IS 4367:1991) are both steel grades.
Both fall under the Alloy Steel category.
BS 970 (Part 1) 523H15 is typically used for case hardening steel (section four), while IS 4367 15Cr3 is commonly used for low-alloy chromium case-hardening steel; used for gears, shafts, and transmission components requiring higher core strength and wear resistance than plain carbon case-hardening grades.
BS 970 (Part 1) 523H15 is defined under British Standards (BS), originating from United Kingdom, while IS 4367 15Cr3 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, BS 970 (Part 1) 523H15 vs IS 4367 15Cr3 is a 83.8% 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 83.8%.
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) 523H15
IS 4367 15Cr3
Tensile Strength
Not specified
600 MPa min
Elongation
Not specified
>=13%
Izod Impact
Not specified
48 J min
Hardness (soft annealed)
Not specified
<=170 HB
Condition
Not specified
Refined, quenched and stress relieved (core properties), ruling section up to 30 mm
Typical Applications
BS 970 (Part 1) 523H15
Case hardening steel (section four)
IS 4367 15Cr3
Low-alloy chromium case-hardening steel; used for gears, shafts, and transmission components requiring higher core strength and wear resistance than plain carbon case-hardening grades
Key Differences
IS 4367 15Cr3 specifies Si, S, P which are not specified for BS 970 (Part 1) 523H15.
Can BS 970 (Part 1) 523H15 Be Substituted With IS 4367 15Cr3?
BS 970 (Part 1) 523H15 and IS 4367 15Cr3 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) 523H15 and IS 4367 15Cr3?
IS 4367 15Cr3 specifies Si, S, P which are not specified for BS 970 (Part 1) 523H15.
Can BS 970 (Part 1) 523H15 be substituted with IS 4367 15Cr3?
BS 970 (Part 1) 523H15 and IS 4367 15Cr3 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.