Strong Match — 95.4% match
based on chemical composition and mechanical property overlap.
IS 4367 20C15 (IS 4367:1991) and BS 970 (Part 3) 150M19 (BS 970 (Part 3):1991) are both steel grades.
Both fall under the Carbon Steel category.
IS 4367 20C15 is typically used for low-carbon case-hardening (carburizing) steel; used for lightly stressed components such as pins, bushes, and small shafts requiring a hard wear-resistant surface with a tough core, while BS 970 (Part 3) 150M19 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; carbon and carbon manganese steel (table 13).
IS 4367 20C15 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 3) 150M19 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 4367 20C15 vs BS 970 (Part 3) 150M19 is a 95.4% 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 95.4%.
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 20C15
BS 970 (Part 3) 150M19
Tensile Strength
600-750 MPa
Not specified
Yield Strength
400 MPa min
Not specified
Elongation
>=18%
Not specified
Izod Impact
50 J min
Not specified
Hardness
178-221 HB
Not specified
Hardness (soft annealed)
<=200 HB
Not specified
Condition
Hardened and tempered, ruling section up to 63 mm
Not specified
Typical Applications
IS 4367 20C15
Low-carbon case-hardening (carburizing) steel; used for lightly stressed components such as pins, bushes, and small shafts requiring a hard wear-resistant surface with a tough core
BS 970 (Part 3) 150M19
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; carbon and carbon manganese steel (Table 13)
Can IS 4367 20C15 Be Substituted With BS 970 (Part 3) 150M19?
IS 4367 20C15 and BS 970 (Part 3) 150M19 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 150M19 is often considered as a substitute for IS 4367 20C15 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 IS 4367 20C15 and BS 970 (Part 3) 150M19?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 4367 20C15 be substituted with BS 970 (Part 3) 150M19?
IS 4367 20C15 and BS 970 (Part 3) 150M19 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 150M19 is often considered as a substitute for IS 4367 20C15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.