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BS 970 (Part 1) 185H40 vs EN 10085 41CrAlMo7

Related Material — 66.8% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 185H40 (BS 970 (Part 1):1991) and EN 10085 41CrAlMo7 (EN 10085:2001) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 185H40 is typically used for through hardening boron steel (section three), while EN 10085 41CrAlMo7 is commonly used for nitrided precision components, crankshafts, gears. BS 970 (Part 1) 185H40 is defined under British Standards (BS), originating from United Kingdom, while EN 10085 41CrAlMo7 is defined under European Standard (EN), originating from Europe.

As per chemical composition, BS 970 (Part 1) 185H40 vs EN 10085 41CrAlMo7 is a 66.8% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 66.8%.

Frequently Compared With BS 970 (Part 1) 185H40:
IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 10Mo6 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 11169 (Part 1) 10Ni5Cr4 IS 4367 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 105Cr5 IS 4367 10Cr9Mo10
Match Breakdown
CHEMISTRY MATCH
66.8%
MECHANICAL MATCH
No shared data
OVERALL
66.8%
Specifications
Property BS 970 (Part 1) 185H40 EN 10085 41CrAlMo7
Standard BS 970 (Part 1):1991 EN 10085:2001
Category Alloy Steel Alloy Steel
C (%) 0.36-0.45 0.38–0.45
Mn (%) 1.25-1.75 0.40–0.70
Cr (%) 0.15-0.35 1.40–1.80
Mo (%) 0.08-0.18 0.15–0.25
B (%) 0.0005-0.005 Not specified
S (%) 0.03-0.06 Not specified
Al (%) Not specified 0.85–1.20
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 1) 185H40 EN 10085 41CrAlMo7
Tensile Strength Not specified 850–1000 MPa
Surface Hardness HV Not specified ≥900 (nitrided)
Core Hardness HB Not specified 248–302
Typical Applications
BS 970 (Part 1) 185H40
Through hardening boron steel (section three)
EN 10085 41CrAlMo7
Nitrided precision components, crankshafts, gears
Key Differences
Can BS 970 (Part 1) 185H40 Be Substituted With EN 10085 41CrAlMo7?
BS 970 (Part 1) 185H40 and EN 10085 41CrAlMo7 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
Forms & Sizes Available on M-EX
BS 970 (Part 1) 185H40
No active listings currently.
EN 10085 41CrAlMo7
Round Bar → (4 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 6300–6500 mm (248.03–255.91 in)
On M-EX Right Now
BS 970 (Part 1) 185H40
0 active listings and RFQs →
EN 10085 41CrAlMo7
4 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 185H40 and EN 10085 41CrAlMo7?
BS 970 (Part 1) 185H40 specifies B, S which are not specified for EN 10085 41CrAlMo7. EN 10085 41CrAlMo7 specifies Al which is not specified for BS 970 (Part 1) 185H40.
Can BS 970 (Part 1) 185H40 be substituted with EN 10085 41CrAlMo7?
BS 970 (Part 1) 185H40 and EN 10085 41CrAlMo7 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.