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BS 970 (Part 1) 070M55 vs IS 1570 (Part 2/Sec 1) 55C8

Strong Match — 98.6% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 070M55 (BS 970 (Part 1):1983) and IS 1570 (Part 2/Sec 1) 55C8 (IS 1570 (Part 2/Sec 1):1979) are both steel grades. Both fall under the Carbon Steel category. BS 970 (Part 1) 070M55 is typically used for through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of table 6., while IS 1570 (Part 2/Sec 1) 55C8 is commonly used for billets and bars for forgings, forged steel rolls, hardened and tempered parts and engine valves (the standard links this grade to is 1875, is 3445, is 5517, is 7494). BS 970 (Part 1) 070M55 is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 2/Sec 1) 55C8 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 (Part 1) 070M55 vs IS 1570 (Part 2/Sec 1) 55C8 is a 98.6% 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 98.6%.

Frequently Compared With BS 970 (Part 1) 070M55:
BS 970 (Part 1) 060A32 BS 970 (Part 3) 070M55 BS 970 (Part 1) 045M10 BS 970 (Part 1) 060A45 BS 970 (Part 1) 060A57 BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 040A04
Match Breakdown
CHEMISTRY MATCH
98.6%
MECHANICAL MATCH
No shared data
OVERALL
98.6%
Specifications
Property BS 970 (Part 1) 070M55 IS 1570 (Part 2/Sec 1) 55C8
Standard BS 970 (Part 1):1983 IS 1570 (Part 2/Sec 1):1979
Category Carbon Steel Carbon Steel
C (%) 0.50-0.60 0.50-0.60
Mn (%) 0.50-0.90 0.60-0.90
P (%) <=0.050 Not specified
S (%) <=0.050 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property BS 970 (Part 1) 070M55 IS 1570 (Part 2/Sec 1) 55C8
Tensile Strength Not specified >=720 MPa
Elongation Not specified >=13%
Typical Applications
BS 970 (Part 1) 070M55
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
IS 1570 (Part 2/Sec 1) 55C8
Billets and bars for forgings, forged steel rolls, hardened and tempered parts and engine valves (the standard links this grade to IS 1875, IS 3445, IS 5517, IS 7494)
Key Differences
Can BS 970 (Part 1) 070M55 Be Substituted With IS 1570 (Part 2/Sec 1) 55C8?
BS 970 (Part 1) 070M55 and IS 1570 (Part 2/Sec 1) 55C8 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 2/Sec 1) 55C8 is often considered as a substitute for BS 970 (Part 1) 070M55 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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BS 970 (Part 1) 070M55
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IS 1570 (Part 2/Sec 1) 55C8
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 070M55 and IS 1570 (Part 2/Sec 1) 55C8?
BS 970 (Part 1) 070M55 specifies P, S which are not specified for IS 1570 (Part 2/Sec 1) 55C8.
Can BS 970 (Part 1) 070M55 be substituted with IS 1570 (Part 2/Sec 1) 55C8?
BS 970 (Part 1) 070M55 and IS 1570 (Part 2/Sec 1) 55C8 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 2/Sec 1) 55C8 is often considered as a substitute for BS 970 (Part 1) 070M55 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.