Strong Match — 87.4% match
based on chemical composition and mechanical property overlap.
BS 970 (Part 1) 530H40 (BS 970 (Part 1):1983) and EN 10083-3 41Cr4 (EN 10083-3:2006) are both steel grades.
Both fall under the Alloy Steel category.
BS 970 (Part 1) 530H40 is typically used for through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of table 6., while EN 10083-3 41Cr4 is commonly used for used in shafts, gears, bolts, axles, and automotive components..
BS 970 (Part 1) 530H40 is defined under British Standards (BS), originating from United Kingdom, while EN 10083-3 41Cr4 is defined under European Standard (EN), originating from Europe.
As per chemical composition, BS 970 (Part 1) 530H40 vs EN 10083-3 41Cr4 is a 87.4% 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 87.4%.
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) 530H40
EN 10083-3 41Cr4
Condition
Not specified
Quenched and tempered (+QT), ruling section d <= 16 mm
Elongation
Not specified
11% min
Hardness
Not specified
Soft annealed (+A): 241 HBW max
Tensile Strength
Not specified
1000 to 1200 MPa
Yield Strength
Not specified
800 MPa min
Typical Applications
BS 970 (Part 1) 530H40
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
EN 10083-3 41Cr4
Used in shafts, gears, bolts, axles, and automotive components.
Key Differences
EN 10083-3 41Cr4 specifies Si which is not specified for BS 970 (Part 1) 530H40.
Can BS 970 (Part 1) 530H40 Be Substituted With EN 10083-3 41Cr4?
BS 970 (Part 1) 530H40 and EN 10083-3 41Cr4 overlap closely enough on chemistry and mechanical properties that EN 10083-3 41Cr4 is often considered as a substitute for BS 970 (Part 1) 530H40 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 BS 970 (Part 1) 530H40 and EN 10083-3 41Cr4?
EN 10083-3 41Cr4 specifies Si which is not specified for BS 970 (Part 1) 530H40.
Can BS 970 (Part 1) 530H40 be substituted with EN 10083-3 41Cr4?
BS 970 (Part 1) 530H40 and EN 10083-3 41Cr4 overlap closely enough on chemistry and mechanical properties that EN 10083-3 41Cr4 is often considered as a substitute for BS 970 (Part 1) 530H40 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.