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IS 1570 (Part 2/Sec 1) 25C8 vs IS 11169 (Part 1) 25C4

Strong Match — 94.3% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 2/Sec 1) 25C8 (IS 1570 (Part 2/Sec 1):1979) and IS 11169 (Part 1) 25C4 (IS 11169 (Part 1):1984) are both steel grades. Both fall under the Carbon Steel category. IS 1570 (Part 2/Sec 1) 25C8 is typically used for billets and bars for forgings, carbon steel forgings, flame and induction hardened parts, hardened and tempered parts and welded round link chains (the standard links this grade to is 1875, is 2004, is 3930, is 5517, is 6967), 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 1570 (Part 2/Sec 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 1570 (Part 2/Sec 1) 25C8 vs IS 11169 (Part 1) 25C4 is a 94.3% 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 94.3%.

Frequently Compared With IS 1570 (Part 2/Sec 1) 25C8:
BS 970 (Part 1) 070M26 BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 3) 045M10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10
Match Breakdown
CHEMISTRY MATCH
94.3%
MECHANICAL MATCH
No shared data
OVERALL
94.3%
Specifications
Property IS 1570 (Part 2/Sec 1) 25C8 IS 11169 (Part 1) 25C4
Standard IS 1570 (Part 2/Sec 1):1979 IS 11169 (Part 1):1984
Category Carbon Steel Carbon Steel
C (%) 0.20-0.30 0.20-0.30
Mn (%) 0.60-0.90 0.30-0.60
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 1570 (Part 2/Sec 1) 25C8 IS 11169 (Part 1) 25C4
Tensile Strength 470-570 MPa Not specified
Elongation >=22% Not specified
Hardness, annealed Not specified <=150 HB
Typical Applications
IS 1570 (Part 2/Sec 1) 25C8
Billets and bars for forgings, carbon steel forgings, flame and induction hardened parts, hardened and tempered parts and welded round link chains (the standard links this grade to IS 1875, IS 2004, IS 3930, IS 5517, IS 6967)
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 1570 (Part 2/Sec 1) 25C8 Be Substituted With IS 11169 (Part 1) 25C4?
IS 1570 (Part 2/Sec 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 1570 (Part 2/Sec 1) 25C8 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
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IS 1570 (Part 2/Sec 1) 25C8
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IS 11169 (Part 1) 25C4
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Frequently Asked Questions
What is the difference between IS 1570 (Part 2/Sec 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 1570 (Part 2/Sec 1) 25C8 be substituted with IS 11169 (Part 1) 25C4?
IS 1570 (Part 2/Sec 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 1570 (Part 2/Sec 1) 25C8 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.