Close Alternative — 79.5% match
based on chemical composition and mechanical property overlap.
EN 10083-3 38Cr2 (EN 10083-3:2006) and BS 970 (Part 1) 530M40 (BS 970 (Part 1):1983) are both steel grades.
Both fall under the Alloy Steel category.
EN 10083-3 38Cr2 is typically used for quenched and tempered, flame or induction hardened machine parts (clause 1), 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..
EN 10083-3 38Cr2 is defined under European Standard (EN), originating from Europe, while BS 970 (Part 1) 530M40 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, EN 10083-3 38Cr2 vs BS 970 (Part 1) 530M40 is a 79.5% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a close alternative overall at 79.5%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10083-3 38Cr2
BS 970 (Part 1) 530M40
Condition
Quenched and tempered (+QT), ruling section d <= 16 mm
Not specified
Elongation
14% min
Not specified
Hardness
Soft annealed (+A): 207 HBW max
Not specified
Tensile Strength
800 to 950 MPa
Not specified
Yield Strength
550 MPa min
Not specified
Typical Applications
EN 10083-3 38Cr2
Quenched and tempered, flame or induction hardened machine parts (clause 1)
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
EN 10083-3 38Cr2 specifies Si which is not specified for BS 970 (Part 1) 530M40.
Can EN 10083-3 38Cr2 Be Substituted With BS 970 (Part 1) 530M40?
EN 10083-3 38Cr2 and BS 970 (Part 1) 530M40 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
What is the difference between EN 10083-3 38Cr2 and BS 970 (Part 1) 530M40?
EN 10083-3 38Cr2 specifies Si which is not specified for BS 970 (Part 1) 530M40.
Can EN 10083-3 38Cr2 be substituted with BS 970 (Part 1) 530M40?
EN 10083-3 38Cr2 and BS 970 (Part 1) 530M40 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.