Related Material — 69.9% match
based on chemical composition and mechanical property overlap.
IS 4367 37C15 (IS 4367:1991) and BS 970 (Part 1) 040A04 (BS 970 (Part 1):1991) are both steel grades.
Both fall under the Carbon Steel category.
IS 4367 37C15 is typically used for case-hardening steel; used for pins, bushes, and moderately stressed components requiring a hard wear-resistant surface with a tough core, while BS 970 (Part 1) 040A04 is commonly used for as-rolled, or as-rolled and softened, steel (section two).
IS 4367 37C15 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 040A04 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 4367 37C15 vs BS 970 (Part 1) 040A04 is a 78.3% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a related material overall at 69.9%.
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 37C15
BS 970 (Part 1) 040A04
Tensile Strength
600-750 MPa
Not specified
Yield Strength
440 MPa min
Not specified
Elongation
>=18%
Not specified
Izod Impact
50 J min
Not specified
Hardness
178-221 HB
Not specified
Hardness (soft annealed)
<=220 HB
Not specified
Condition
Hardened and tempered, ruling section up to 150 mm
Not specified
Typical Applications
IS 4367 37C15
Case-hardening steel; used for pins, bushes, and moderately stressed components requiring a hard wear-resistant surface with a tough core
BS 970 (Part 1) 040A04
As-rolled, or as-rolled and softened, steel (section two)
Key Differences
IS 4367 37C15 specifies Si, S, P which are not specified for BS 970 (Part 1) 040A04.
Can IS 4367 37C15 Be Substituted With BS 970 (Part 1) 040A04?
IS 4367 37C15 and BS 970 (Part 1) 040A04 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
What is the difference between IS 4367 37C15 and BS 970 (Part 1) 040A04?
IS 4367 37C15 specifies Si, S, P which are not specified for BS 970 (Part 1) 040A04.
Can IS 4367 37C15 be substituted with BS 970 (Part 1) 040A04?
IS 4367 37C15 and BS 970 (Part 1) 040A04 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.