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IS 1570 (Part 2/Sec 1) 20C8 vs BS 970 (Part 1) 070M20

Strong Match — 96.9% match based on chemical composition and mechanical property overlap.

IS 1570 (Part 2/Sec 1) 20C8 (IS 1570 (Part 2/Sec 1):1979) and BS 970 (Part 1) 070M20 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Carbon Steel category. IS 1570 (Part 2/Sec 1) 20C8 is typically used for billets and bars for forgings and carbon steel forgings (the standard links this grade to is 1875, is 2004), while BS 970 (Part 1) 070M20 is commonly used for wrought steel supplied as bright bar for mechanical and allied engineering purposes (table 4).. IS 1570 (Part 2/Sec 1) 20C8 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 070M20 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 1570 (Part 2/Sec 1) 20C8 vs BS 970 (Part 1) 070M20 is a 96.9% 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 96.9%.

Frequently Compared With IS 1570 (Part 2/Sec 1) 20C8:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 080A20 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15
Match Breakdown
CHEMISTRY MATCH
96.9%
MECHANICAL MATCH
No shared data
OVERALL
96.9%
Specifications
Property IS 1570 (Part 2/Sec 1) 20C8 BS 970 (Part 1) 070M20
Standard IS 1570 (Part 2/Sec 1):1979 BS 970 (Part 1):1983
Category Carbon Steel Carbon Steel
C (%) 0.15-0.25 0.16-0.24
Mn (%) 0.60-0.90 0.50-0.90
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 1570 (Part 2/Sec 1) 20C8 BS 970 (Part 1) 070M20
Tensile Strength 440-520 MPa Not specified
Elongation >=24% Not specified
Typical Applications
IS 1570 (Part 2/Sec 1) 20C8
Billets and bars for forgings and carbon steel forgings (the standard links this grade to IS 1875, IS 2004)
BS 970 (Part 1) 070M20
Wrought steel supplied as bright bar for mechanical and allied engineering purposes (Table 4).
Key Differences
Can IS 1570 (Part 2/Sec 1) 20C8 Be Substituted With BS 970 (Part 1) 070M20?
IS 1570 (Part 2/Sec 1) 20C8 and BS 970 (Part 1) 070M20 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 070M20 is often considered as a substitute for IS 1570 (Part 2/Sec 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 1570 (Part 2/Sec 1) 20C8
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BS 970 (Part 1) 070M20
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Frequently Asked Questions
What is the difference between IS 1570 (Part 2/Sec 1) 20C8 and BS 970 (Part 1) 070M20?
BS 970 (Part 1) 070M20 specifies P, S which are not specified for IS 1570 (Part 2/Sec 1) 20C8.
Can IS 1570 (Part 2/Sec 1) 20C8 be substituted with BS 970 (Part 1) 070M20?
IS 1570 (Part 2/Sec 1) 20C8 and BS 970 (Part 1) 070M20 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 070M20 is often considered as a substitute for IS 1570 (Part 2/Sec 1) 20C8 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.