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EN 10083-1 41CrS4 vs BS 970 (Part 1) 530A40

Strong Match — 89.2% match based on chemical composition and mechanical property overlap.

EN 10083-1 41CrS4 (EN 10083-1:1991) and BS 970 (Part 1) 530A40 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Alloy Steel category. EN 10083-1 41CrS4 is typically used for quenched and tempered machine parts; non alloy steels also normalized (clause 1), while BS 970 (Part 1) 530A40 is commonly used for through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of table 6.. EN 10083-1 41CrS4 is defined under European Standard (EN), originating from Europe, while BS 970 (Part 1) 530A40 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, EN 10083-1 41CrS4 vs BS 970 (Part 1) 530A40 is a 89.2% 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 89.2%.

Frequently Compared With EN 10083-1 41CrS4:
IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 11169 (Part 1) 10Ni5Cr4 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr6 IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
89.2%
MECHANICAL MATCH
No shared data
OVERALL
89.2%
Specifications
Property EN 10083-1 41CrS4 BS 970 (Part 1) 530A40
Standard EN 10083-1:1991 BS 970 (Part 1):1983
Category Alloy Steel Alloy Steel
C (%) 0.38-0.45 0.38-0.43
Cr (%) 0.90-1.20 0.90-1.20
Mn (%) 0.60-0.90 0.60-0.80
P (%) <=0.035 <=0.035
S (%) 0.020-0.040 <=0.040
Si (%) <=0.40 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property EN 10083-1 41CrS4 BS 970 (Part 1) 530A40
Condition Quenched and tempered, ruling section d <= 16 mm Not specified
Elongation 11% min Not specified
Hardness Soft annealed: 241 HB max Not specified
Tensile Strength 1000 to 1200 MPa Not specified
Yield Strength 800 MPa min Not specified
Typical Applications
EN 10083-1 41CrS4
Quenched and tempered machine parts; non alloy steels also normalized (clause 1)
BS 970 (Part 1) 530A40
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
Key Differences
Can EN 10083-1 41CrS4 Be Substituted With BS 970 (Part 1) 530A40?
EN 10083-1 41CrS4 and BS 970 (Part 1) 530A40 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 530A40 is often considered as a substitute for EN 10083-1 41CrS4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
On M-EX Right Now
EN 10083-1 41CrS4
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BS 970 (Part 1) 530A40
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Frequently Asked Questions
What is the difference between EN 10083-1 41CrS4 and BS 970 (Part 1) 530A40?
EN 10083-1 41CrS4 specifies Si which is not specified for BS 970 (Part 1) 530A40.
Can EN 10083-1 41CrS4 be substituted with BS 970 (Part 1) 530A40?
EN 10083-1 41CrS4 and BS 970 (Part 1) 530A40 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 530A40 is often considered as a substitute for EN 10083-1 41CrS4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.