Strong Match — 86.9% match
based on chemical composition and mechanical property overlap.
IS 1570 (Part 4) 47C15 (IS 1570 (Part 4):1988) and BS 970 (Part 1) 150M40 (BS 970 (Part 1):1983) are both steel grades.
Both fall under the Carbon Steel category.
IS 1570 (Part 4) 47C15 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 150M40 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 1570 (Part 4) 47C15 vs BS 970 (Part 1) 150M40 is a 86.9% 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 86.9%.
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 4) 47C15
BS 970 (Part 1) 150M40
Tensile Strength
890-1090 MPa
Not specified
Yield Strength
>=740 MPa
Not specified
Condition
Sheet and strip, hardened and tempered or cold rolled and tempered
Not specified
Typical Applications
IS 1570 (Part 4) 47C15
Not documented
BS 970 (Part 1) 150M40
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
Key Differences
IS 1570 (Part 4) 47C15 specifies Si which is not specified for BS 970 (Part 1) 150M40.
BS 970 (Part 1) 150M40 specifies P, S which are not specified for IS 1570 (Part 4) 47C15.
Can IS 1570 (Part 4) 47C15 Be Substituted With BS 970 (Part 1) 150M40?
IS 1570 (Part 4) 47C15 and BS 970 (Part 1) 150M40 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 150M40 is often considered as a substitute for IS 1570 (Part 4) 47C15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between IS 1570 (Part 4) 47C15 and BS 970 (Part 1) 150M40?
IS 1570 (Part 4) 47C15 specifies Si which is not specified for BS 970 (Part 1) 150M40. BS 970 (Part 1) 150M40 specifies P, S which are not specified for IS 1570 (Part 4) 47C15.
Can IS 1570 (Part 4) 47C15 be substituted with BS 970 (Part 1) 150M40?
IS 1570 (Part 4) 47C15 and BS 970 (Part 1) 150M40 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 150M40 is often considered as a substitute for IS 1570 (Part 4) 47C15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.