Strong Match — 96.2% match
based on chemical composition and mechanical property overlap.
IS 11169 (Part 1) 25C8 (IS 11169 (Part 1):1984) and IS 11169 (Part 1) 25C4 (IS 11169 (Part 1):1984) 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 IS 11169 (Part 1) 25C4 is commonly used for cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1).
IS 11169 (Part 1) 25C8 is defined under Bureau of Indian Standards (IS), originating from India, while IS 11169 (Part 1) 25C4 is defined under Bureau of Indian Standards (IS), originating from India.
As per chemical composition, IS 11169 (Part 1) 25C8 vs IS 11169 (Part 1) 25C4 is a 94.3% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 96.2%.
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
IS 11169 (Part 1) 25C4
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)
Not specified
Hardness, annealed
<=150 HB
<=150 HB
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)
IS 11169 (Part 1) 25C4
Cold heading and cold extrusion; the standard covers wires, wire rods and bars of 2 to 100 mm diameter (clause 1.1)
Can IS 11169 (Part 1) 25C8 Be Substituted With IS 11169 (Part 1) 25C4?
IS 11169 (Part 1) 25C8 and IS 11169 (Part 1) 25C4 overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 25C4 is often considered as a substitute for IS 11169 (Part 1) 25C8 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 11169 (Part 1) 25C8 and IS 11169 (Part 1) 25C4?
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 IS 11169 (Part 1) 25C4?
IS 11169 (Part 1) 25C8 and IS 11169 (Part 1) 25C4 overlap closely enough on chemistry and mechanical properties that IS 11169 (Part 1) 25C4 is often considered as a substitute for IS 11169 (Part 1) 25C8 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.