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BS 970 EN43A vs IS 1570 (Part 2/Sec 1) 50C8

Strong Match — 90.5% match based on chemical composition and mechanical property overlap.

BS 970 EN43A (BS 970:1955) and IS 1570 (Part 2/Sec 1) 50C8 (IS 1570 (Part 2/Sec 1):1979) are both steel grades. Both fall under the Carbon Steel category. BS 970 EN43A is typically used for bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. suitable hardened and tempered for 45/55 (r) and 50/60 (s) tons/sq in according to ruling section; purchaser to state normalised, cold drawn or hardened and tempered r or s. en 43a to 43e., while IS 1570 (Part 2/Sec 1) 50C8 is commonly used for hardened and tempered parts (the standard links this grade to is 5517). BS 970 EN43A is defined under British Standards (BS), originating from United Kingdom, while IS 1570 (Part 2/Sec 1) 50C8 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, BS 970 EN43A vs IS 1570 (Part 2/Sec 1) 50C8 is a 90.5% 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 90.5%.

Frequently Compared With BS 970 EN43A:
BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A40 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 060A32
Match Breakdown
CHEMISTRY MATCH
90.5%
MECHANICAL MATCH
No shared data
OVERALL
90.5%
Specifications
Property BS 970 EN43A IS 1570 (Part 2/Sec 1) 50C8
Standard BS 970:1955 IS 1570 (Part 2/Sec 1):1979
Category Carbon Steel Carbon Steel
C (%) 0.45-0.55 0.45-0.55
Si (%) 0.05-0.35 Not specified
Mn (%) 0.70-1.00 0.60-0.90
S (%) <=0.060 Not specified
P (%) <=0.060 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 EN43A IS 1570 (Part 2/Sec 1) 50C8
Tensile Strength ≥618 MPa (40 tons/sq in, converted) Not specified
Yield Strength ≥324 MPa (21 tons/sq in, converted) Not specified
Elongation ≥18% Not specified
Hardness 179-229 HB Not specified
Condition Normalised, ruling section 1 1/8 in (lowest-strength condition of the standard) Not specified
Typical Applications
BS 970 EN43A
Bars and billets for forging; forgings and drop-forgings; bars for machining; bright bars. Suitable hardened and tempered for 45/55 (R) and 50/60 (S) tons/sq in according to ruling section; purchaser to state normalised, cold drawn or hardened and tempered R or S. En 43A to 43E.
IS 1570 (Part 2/Sec 1) 50C8
Hardened and tempered parts (the standard links this grade to IS 5517)
Key Differences
Can BS 970 EN43A Be Substituted With IS 1570 (Part 2/Sec 1) 50C8?
BS 970 EN43A and IS 1570 (Part 2/Sec 1) 50C8 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 2/Sec 1) 50C8 is often considered as a substitute for BS 970 EN43A 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 EN43A
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IS 1570 (Part 2/Sec 1) 50C8
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Frequently Asked Questions
What is the difference between BS 970 EN43A and IS 1570 (Part 2/Sec 1) 50C8?
BS 970 EN43A specifies Si, S, P which are not specified for IS 1570 (Part 2/Sec 1) 50C8.
Can BS 970 EN43A be substituted with IS 1570 (Part 2/Sec 1) 50C8?
BS 970 EN43A and IS 1570 (Part 2/Sec 1) 50C8 overlap closely enough on chemistry and mechanical properties that IS 1570 (Part 2/Sec 1) 50C8 is often considered as a substitute for BS 970 EN43A in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.