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EN 10083-3 39MnCrB6-2 vs BS 970 (Part 3) 530M40

Close Alternative — 75.7% match based on chemical composition and mechanical property overlap.

EN 10083-3 39MnCrB6-2 (EN 10083-3:2006) and BS 970 (Part 3) 530M40 (BS 970 (Part 3):1991) are both steel grades. Both fall under the Alloy Steel category. EN 10083-3 39MnCrB6-2 is typically used for quenched and tempered, flame or induction hardened machine parts (clause 1), while BS 970 (Part 3) 530M40 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy direct hardening steel (table 16). EN 10083-3 39MnCrB6-2 is defined under European Standard (EN), originating from Europe, while BS 970 (Part 3) 530M40 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, EN 10083-3 39MnCrB6-2 vs BS 970 (Part 3) 530M40 is a 75.7% 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 75.7%.

Frequently Compared With EN 10083-3 39MnCrB6-2:
IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 105Cr5 IS 4367 10Cr9Mo10 IS 11169 (Part 1) 10Ni5Cr4 NF A35-565 100C6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6
Match Breakdown
CHEMISTRY MATCH
75.7%
MECHANICAL MATCH
No shared data
OVERALL
75.7%
Specifications
Property EN 10083-3 39MnCrB6-2 BS 970 (Part 3) 530M40
Standard EN 10083-3:2006 BS 970 (Part 3):1991
Category Alloy Steel Alloy Steel
B (%) 0.0008-0.0050 Not specified
C (%) 0.36-0.42 0.36-0.44
Cr (%) 0.30-0.60 0.90-1.20
Mn (%) 1.40-1.70 0.60-0.90
P (%) <=0.025 <=0.035
S (%) <=0.035 <=0.040
Si (%) <=0.40 0.10-0.40
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 39MnCrB6-2 BS 970 (Part 3) 530M40
Condition Quenched and tempered (+QT), ruling section d <= 16 mm Not specified
Elongation 12% min Not specified
Tensile Strength 1100 to 1350 MPa Not specified
Yield Strength 900 MPa min Not specified
Typical Applications
EN 10083-3 39MnCrB6-2
Quenched and tempered, flame or induction hardened machine parts (clause 1)
BS 970 (Part 3) 530M40
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; alloy direct hardening steel (Table 16)
Key Differences
Can EN 10083-3 39MnCrB6-2 Be Substituted With BS 970 (Part 3) 530M40?
EN 10083-3 39MnCrB6-2 and BS 970 (Part 3) 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.
On M-EX Right Now
EN 10083-3 39MnCrB6-2
0 active listings and RFQs →
BS 970 (Part 3) 530M40
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Frequently Asked Questions
What is the difference between EN 10083-3 39MnCrB6-2 and BS 970 (Part 3) 530M40?
EN 10083-3 39MnCrB6-2 specifies B which is not specified for BS 970 (Part 3) 530M40.
Can EN 10083-3 39MnCrB6-2 be substituted with BS 970 (Part 3) 530M40?
EN 10083-3 39MnCrB6-2 and BS 970 (Part 3) 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.