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IS 11169 (Part 1) 20C8 vs BS 970 (Part 3) 070M20

Strong Match — 91.1% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 20C8 (IS 11169 (Part 1):1984) and BS 970 (Part 3) 070M20 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Carbon Steel category. IS 11169 (Part 1) 20C8 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) 070M20 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; carbon and carbon manganese steel (table 13). IS 11169 (Part 1) 20C8 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 3) 070M20 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 11169 (Part 1) 20C8 vs BS 970 (Part 3) 070M20 is a 91.1% 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 91.1%.

Frequently Compared With IS 11169 (Part 1) 20C8:
BS 970 (Part 1) 070M20 BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 080A20 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 040A04 BS 970 (Part 3) 045A10
Match Breakdown
CHEMISTRY MATCH
91.1%
MECHANICAL MATCH
No shared data
OVERALL
91.1%
Specifications
Property IS 11169 (Part 1) 20C8 BS 970 (Part 3) 070M20
Standard IS 11169 (Part 1):1984 BS 970 (Part 3):1991
Category Carbon Steel Carbon Steel
C (%) 0.15-0.25 0.16-0.24
Mn (%) 0.60-0.90 0.50-0.90
Si (%) Not specified 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) 20C8 BS 970 (Part 3) 070M20
Tensile Strength (hardened and tempered) 540-690 MPa (16 mm) / 490-640 MPa (40 mm) Not specified
0.2% Proof Stress >=370 MPa (16 mm) / >=295 MPa (40 mm) Not specified
Elongation >=20% (16 mm) / >=22% (40 mm) Not specified
Hardness, annealed <=150 HB Not specified
Typical Applications
IS 11169 (Part 1) 20C8
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) 070M20
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; carbon and carbon manganese steel (Table 13)
Key Differences
Can IS 11169 (Part 1) 20C8 Be Substituted With BS 970 (Part 3) 070M20?
IS 11169 (Part 1) 20C8 and BS 970 (Part 3) 070M20 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 070M20 is often considered as a substitute for IS 11169 (Part 1) 20C8 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 11169 (Part 1) 20C8
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BS 970 (Part 3) 070M20
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 20C8 and BS 970 (Part 3) 070M20?
BS 970 (Part 3) 070M20 specifies Si, P, S which are not specified for IS 11169 (Part 1) 20C8.
Can IS 11169 (Part 1) 20C8 be substituted with BS 970 (Part 3) 070M20?
IS 11169 (Part 1) 20C8 and BS 970 (Part 3) 070M20 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 3) 070M20 is often considered as a substitute for IS 11169 (Part 1) 20C8 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.