Related Material — 58% match
based on chemical composition and mechanical property overlap.
IS 11169 (Part 1) 25C8 (IS 11169 (Part 1):1984) and BS 970 (Part 1) 055M15 (BS 970 (Part 1):1991) are both steel grades.
Both fall under the Carbon Steel category.
IS 11169 (Part 1) 25C8 is typically used for cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1), while BS 970 (Part 1) 055M15 is commonly used for as-rolled, or as-rolled and softened, steel (section two).
IS 11169 (Part 1) 25C8 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 11169 (Part 1) 25C8 vs BS 970 (Part 1) 055M15 is a 87% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a related material overall at 58%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 11169 (Part 1) 25C8
BS 970 (Part 1) 055M15
Tensile Strength (hardened and tempered)
580-730 MPa (16 mm) / 540-690 MPa (40 mm)
Not specified
0.2% Proof Stress
>=390 MPa (16 mm) / >=330 MPa (40 mm)
Not specified
Elongation
>=18% (16 mm) / >=20% (40 mm)
25 % min
Hardness, annealed
<=150 HB
Not specified
Condition
Not specified
As-rolled
Tensile Strength
Not specified
310 MPa min
Hardness
Not specified
121 HB min
Typical Applications
IS 11169 (Part 1) 25C8
Cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1)
BS 970 (Part 1) 055M15
As-rolled, or as-rolled and softened, steel (section two)
Can IS 11169 (Part 1) 25C8 Be Substituted With BS 970 (Part 1) 055M15?
IS 11169 (Part 1) 25C8 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 11169 (Part 1) 25C8 and BS 970 (Part 1) 055M15?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can IS 11169 (Part 1) 25C8 be substituted with BS 970 (Part 1) 055M15?
IS 11169 (Part 1) 25C8 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.