Related Material — 55.9% match
based on chemical composition and mechanical property overlap.
IS 4432 15C8 (IS 4432:1988) and BS 970 (Part 1) 055M15 (BS 970 (Part 1):1991) are both steel grades.
Both fall under the Carbon Steel category.
IS 4432 15C8 is typically used for forgings and fabrication of case-hardened machine or automobile parts, while BS 970 (Part 1) 055M15 is commonly used for as-rolled, or as-rolled and softened, steel (section two).
IS 4432 15C8 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 055M15 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 4432 15C8 vs BS 970 (Part 1) 055M15 is a 83.8% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a related material overall at 55.9%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 4432 15C8
BS 970 (Part 1) 055M15
Core Tensile Strength
600-850 MPa (16 mm) / 550-800 MPa (30 mm)
Not specified
Core Yield Strength
>=400 MPa (16 mm) / >=330 MPa (30 mm)
Not specified
Core Elongation
>=12% (16 mm) / >=14% (30 mm)
Not specified
Core Reduction of Area
>=35% (16 mm) / >=40% (30 mm)
Not specified
Hardness, annealed (A)
<=150 HB
Not specified
Condition
Not specified
As-rolled
Tensile Strength
Not specified
310 MPa min
Elongation
Not specified
25 % min
Hardness
Not specified
121 HB min
Typical Applications
IS 4432 15C8
Forgings and fabrication of case-hardened machine or automobile parts
BS 970 (Part 1) 055M15
As-rolled, or as-rolled and softened, steel (section two)
Key Differences
IS 4432 15C8 specifies Si, S, P which are not specified for BS 970 (Part 1) 055M15.
Can IS 4432 15C8 Be Substituted With BS 970 (Part 1) 055M15?
IS 4432 15C8 and BS 970 (Part 1) 055M15 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 4432 15C8 and BS 970 (Part 1) 055M15?
IS 4432 15C8 specifies Si, S, P which are not specified for BS 970 (Part 1) 055M15.
Can IS 4432 15C8 be substituted with BS 970 (Part 1) 055M15?
IS 4432 15C8 and BS 970 (Part 1) 055M15 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.