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IS 11169 (Part 1) 35C8 vs BS 970 (Part 3) 080M40

Strong Match — 91.5% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 35C8 (IS 11169 (Part 1):1984) and BS 970 (Part 3) 080M40 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Carbon Steel category. IS 11169 (Part 1) 35C8 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 3) 080M40 is commonly used for shafts, gears, axles, general engineering. IS 11169 (Part 1) 35C8 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 3) 080M40 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 11169 (Part 1) 35C8 vs BS 970 (Part 3) 080M40 is a 91.5% 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 91.5%.

Frequently Compared With IS 11169 (Part 1) 35C8:
BS 970 (Part 1) 040A10 BS 970 (Part 1) 045A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 055M15 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 060A32 BS 970 (Part 1) 045A10
Match Breakdown
CHEMISTRY MATCH
91.5%
MECHANICAL MATCH
No shared data
OVERALL
91.5%
Specifications
Property IS 11169 (Part 1) 35C8 BS 970 (Part 3) 080M40
Standard IS 11169 (Part 1):1984 BS 970 (Part 3):1991
Category Carbon Steel Carbon Steel
C (%) 0.30-0.40 0.36-0.44
Mn (%) 0.60-0.90 0.60-1.00
Si (%) 0.10-0.35 0.10-0.40
P (%) Not specified <=0.05
S (%) Not specified <=0.05
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) 35C8 BS 970 (Part 3) 080M40
Tensile Strength (hardened and tempered) 620-770 MPa (16 mm) / 580-730 MPa (40 mm) / 540-690 MPa (100 mm) Not specified
0.2% Proof Stress >=420 MPa (16 mm) / >=365 MPa (40 mm) / >=325 MPa (100 mm) Not specified
Elongation >=17% (16 mm) / >=19% (40 mm) / >=20% (100 mm) Not specified
Hardness, annealed <=160 HB Not specified
Typical Applications
IS 11169 (Part 1) 35C8
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 3) 080M40
Shafts, gears, axles, general engineering
Key Differences
Can IS 11169 (Part 1) 35C8 Be Substituted With BS 970 (Part 3) 080M40?
IS 11169 (Part 1) 35C8 and BS 970 (Part 3) 080M40 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 080M40 is often considered as a substitute for IS 11169 (Part 1) 35C8 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
IS 11169 (Part 1) 35C8
No active listings currently.
BS 970 (Part 3) 080M40
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 6000–6900 mm (236.22–271.65 in)
On M-EX Right Now
IS 11169 (Part 1) 35C8
0 active listings and RFQs →
BS 970 (Part 3) 080M40
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 35C8 and BS 970 (Part 3) 080M40?
BS 970 (Part 3) 080M40 specifies P, S which are not specified for IS 11169 (Part 1) 35C8.
Can IS 11169 (Part 1) 35C8 be substituted with BS 970 (Part 3) 080M40?
IS 11169 (Part 1) 35C8 and BS 970 (Part 3) 080M40 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 080M40 is often considered as a substitute for IS 11169 (Part 1) 35C8 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.