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BS 970 (Part 3) 530M40 vs EN 10083-3 41Cr4

Strong Match — 94.5% match based on chemical composition and mechanical property overlap.

BS 970 (Part 3) 530M40 (BS 970 (Part 3):1991) and EN 10083-3 41Cr4 (EN 10083-3:2006) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 3) 530M40 is typically 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), while EN 10083-3 41Cr4 is commonly used for used in shafts, gears, bolts, axles, and automotive components.. BS 970 (Part 3) 530M40 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 3) 530M40 vs EN 10083-3 41Cr4 is a 94.5% 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 94.5%.

Frequently Compared With BS 970 (Part 3) 530M40:
IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 103Cr4 IS 4367 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
94.5%
MECHANICAL MATCH
No shared data
OVERALL
94.5%
Specifications
Property BS 970 (Part 3) 530M40 EN 10083-3 41Cr4
Standard BS 970 (Part 3):1991 EN 10083-3:2006
Category Alloy Steel Alloy Steel
C (%) 0.36-0.44 0.38-0.45
Si (%) 0.10-0.40 <=0.40
Mn (%) 0.60-0.90 0.60-0.90
P (%) <=0.035 <=0.025
S (%) <=0.040 <=0.035
Cr (%) 0.90-1.20 0.90-1.20
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 3) 530M40 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 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)
EN 10083-3 41Cr4
Used in shafts, gears, bolts, axles, and automotive components.
Can BS 970 (Part 3) 530M40 Be Substituted With EN 10083-3 41Cr4?
BS 970 (Part 3) 530M40 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 3) 530M40 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
BS 970 (Part 3) 530M40
No active listings currently.
EN 10083-3 41Cr4
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5300–5900 mm (208.66–232.28 in)
On M-EX Right Now
BS 970 (Part 3) 530M40
0 active listings and RFQs →
EN 10083-3 41Cr4
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 3) 530M40 and EN 10083-3 41Cr4?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 3) 530M40 be substituted with EN 10083-3 41Cr4?
BS 970 (Part 3) 530M40 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 3) 530M40 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.