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IS 11169 (Part 1) 25C8 vs BS 970 (Part 1) 045M10

Close Alternative — 84.9% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 25C8 (IS 11169 (Part 1):1984) and BS 970 (Part 1) 045M10 (BS 970 (Part 1):1983) 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) 045M10 is commonly used for case hardening steel for mechanical and allied engineering purposes (table 11 mechanical properties).. IS 11169 (Part 1) 25C8 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 045M10 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 11169 (Part 1) 25C8 vs BS 970 (Part 1) 045M10 is a 85.7% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 84.9%.

Frequently Compared With IS 11169 (Part 1) 25C8:
BS 970 (Part 1) 070M26 BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 080A20 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10
Match Breakdown
CHEMISTRY MATCH
85.7%
MECHANICAL MATCH
No shared data
OVERALL
84.9%
Specifications
Property IS 11169 (Part 1) 25C8 BS 970 (Part 1) 045M10
Standard IS 11169 (Part 1):1984 BS 970 (Part 1):1983
Category Carbon Steel Carbon Steel
C (%) 0.20-0.30 0.07-0.13
Mn (%) 0.60-0.90 0.30-0.60
P (%) Not specified <=0.050
S (%) Not specified <=0.050
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) 045M10
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 Not specified
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) 045M10
Case hardening steel for mechanical and allied engineering purposes (Table 11 mechanical properties).
Key Differences
Can IS 11169 (Part 1) 25C8 Be Substituted With BS 970 (Part 1) 045M10?
IS 11169 (Part 1) 25C8 and BS 970 (Part 1) 045M10 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
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IS 11169 (Part 1) 25C8
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BS 970 (Part 1) 045M10
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 25C8 and BS 970 (Part 1) 045M10?
BS 970 (Part 1) 045M10 specifies P, S which are not specified for IS 11169 (Part 1) 25C8.
Can IS 11169 (Part 1) 25C8 be substituted with BS 970 (Part 1) 045M10?
IS 11169 (Part 1) 25C8 and BS 970 (Part 1) 045M10 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.