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IS 5517 55C8 vs BS 970 (Part 1) 070M55

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

IS 5517 55C8 (IS 5517:1993) and BS 970 (Part 1) 070M55 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Carbon Steel category. IS 5517 55C8 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 070M55 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 5517 55C8 vs BS 970 (Part 1) 070M55 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 5517 55C8:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 080A20 BS 970 (Part 1) 040A04 BS 970 (Part 3) 045A10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 060A32 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15
Match Breakdown
CHEMISTRY MATCH
91.1%
MECHANICAL MATCH
No shared data
OVERALL
91.1%
Specifications
Property IS 5517 55C8 BS 970 (Part 1) 070M55
Standard IS 5517:1993 BS 970 (Part 1):1983
Category Carbon Steel Carbon Steel
C (%) 0.50-0.60 0.50-0.60
Si (%) 0.10-0.35 Not specified
Mn (%) 0.60-0.90 0.50-0.90
S (%) <=0.035 <=0.050
P (%) <=0.035 <=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 5517 55C8 BS 970 (Part 1) 070M55
Tensile Strength 700-850 MPa Not specified
Yield Strength (0.2% proof) 460 MPa min Not specified
Elongation >=15% Not specified
Hardness (annealed) <=220 HB Not specified
Condition Hardened and tempered, ruling section up to 63 mm Not specified
Typical Applications
IS 5517 55C8
Not documented
BS 970 (Part 1) 070M55
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
Key Differences
Can IS 5517 55C8 Be Substituted With BS 970 (Part 1) 070M55?
IS 5517 55C8 and BS 970 (Part 1) 070M55 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 070M55 is often considered as a substitute for IS 5517 55C8 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 5517 55C8
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BS 970 (Part 1) 070M55
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Frequently Asked Questions
What is the difference between IS 5517 55C8 and BS 970 (Part 1) 070M55?
IS 5517 55C8 specifies Si which is not specified for BS 970 (Part 1) 070M55.
Can IS 5517 55C8 be substituted with BS 970 (Part 1) 070M55?
IS 5517 55C8 and BS 970 (Part 1) 070M55 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 070M55 is often considered as a substitute for IS 5517 55C8 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.