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ASTM A681 A2 vs EN 10085 41CrAlMo7

Related Material — 65% match based on chemical composition and mechanical property overlap.

ASTM A681 A2 (ASTM A681:2008) and EN 10085 41CrAlMo7 (EN 10085:2001) are both steel grades. ASTM A681 A2 is classified under Tool & Die Steels, while EN 10085 41CrAlMo7 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below. ASTM A681 A2 is typically used for tools, dies and fixtures (clause 1.2), while EN 10085 41CrAlMo7 is commonly used for nitrided precision components, crankshafts, gears. ASTM A681 A2 is defined under ASTM International, originating from United States, while EN 10085 41CrAlMo7 is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A681 A2 vs EN 10085 41CrAlMo7 is a 57.3% match. As per mechanical properties, the match is 100%. Combined, this makes them a related material overall at 65%.

Frequently Compared With ASTM A681 A2:
GOST 5950 4H5MFS1 DIN EN ISO 4957 1.2344 GOST 5950 3H2W8F GB/T 1299 4Cr5MoSiV1 EN ISO 4957 1.2316 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 133T3 GB/T 1299 4Cr5MoSiV GOST 5950 4H5MFS DIN EN ISO 4957 1.2379 IS 1570 (Part 6) 118T3 GB/T 1299 3Cr2W8V
Match Breakdown
CHEMISTRY MATCH
57.3%
MECHANICAL MATCH
100%
OVERALL
65%
Specifications
Property ASTM A681 A2 EN 10085 41CrAlMo7
Standard ASTM A681:2008 EN 10085:2001
Category Tool & Die Steels Alloy Steel
C (%) 0.95-1.05 0.38–0.45
Mn (%) 0.40-1.00 0.40–0.70
P (%) <=0.030 Not specified
S (%) <=0.030 Not specified
Si (%) 0.10-0.50 Not specified
Cr (%) 4.75-5.50 1.40–1.80
V (%) 0.15-0.50 Not specified
Mo (%) 0.90-1.40 0.15–0.25
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 ASTM A681 A2 EN 10085 41CrAlMo7
Hardness <=248 HB Not specified
Condition Annealed (maximum Brinell hardness) Not specified
Tensile Strength Not specified 850–1000 MPa
Surface Hardness HV Not specified ≥900 (nitrided)
Core Hardness HB Not specified 248–302
Typical Applications
ASTM A681 A2
Tools, dies and fixtures (clause 1.2)
EN 10085 41CrAlMo7
Nitrided precision components, crankshafts, gears
Key Differences
Can ASTM A681 A2 Be Substituted With EN 10085 41CrAlMo7?
ASTM A681 A2 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
ASTM A681 A2
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
ASTM A681 A2
0 active listings and RFQs →
EN 10085 41CrAlMo7
4 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A681 A2 and EN 10085 41CrAlMo7?
Different category: ASTM A681 A2 is Tool & Die Steels, EN 10085 41CrAlMo7 is Alloy Steel. ASTM A681 A2 specifies P, S, Si, V which are not specified for EN 10085 41CrAlMo7. EN 10085 41CrAlMo7 specifies Al which is not specified for ASTM A681 A2.
Can ASTM A681 A2 be substituted with EN 10085 41CrAlMo7?
ASTM A681 A2 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.