Strong Match — 86.8% match
based on chemical composition and mechanical property overlap.
IS 11169 (Part 1) 37Cr4 (IS 11169 (Part 1):2022) and BS 970 (Part 1) 530M40 (BS 970 (Part 1):1983) are both steel grades.
Both fall under the Alloy Steel category.
IS 11169 (Part 1) 37Cr4 is typically used for cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex c), while BS 970 (Part 1) 530M40 is commonly used for through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of table 6..
IS 11169 (Part 1) 37Cr4 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 530M40 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, IS 11169 (Part 1) 37Cr4 vs BS 970 (Part 1) 530M40 is a 86.8% 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 86.8%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
IS 11169 (Part 1) 37Cr4
BS 970 (Part 1) 530M40
Core Hardness (CH)
>=48 HRC up to 15 mm
Not specified
Tensile Strength, annealed (+AC)
<=590 MPa (over 5 to 40 mm)
Not specified
Typical Applications
IS 11169 (Part 1) 37Cr4
Cold heading and cold extrusion of parts that are quenched and tempered; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex C)
BS 970 (Part 1) 530M40
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
Key Differences
IS 11169 (Part 1) 37Cr4 specifies Cu, Si which are not specified for BS 970 (Part 1) 530M40.
Can IS 11169 (Part 1) 37Cr4 Be Substituted With BS 970 (Part 1) 530M40?
IS 11169 (Part 1) 37Cr4 and BS 970 (Part 1) 530M40 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 530M40 is often considered as a substitute for IS 11169 (Part 1) 37Cr4 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 11169 (Part 1) 37Cr4 and BS 970 (Part 1) 530M40?
IS 11169 (Part 1) 37Cr4 specifies Cu, Si which are not specified for BS 970 (Part 1) 530M40.
Can IS 11169 (Part 1) 37Cr4 be substituted with BS 970 (Part 1) 530M40?
IS 11169 (Part 1) 37Cr4 and BS 970 (Part 1) 530M40 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 530M40 is often considered as a substitute for IS 11169 (Part 1) 37Cr4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.