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EN 10028-2 10CrMo9-10 vs ASTM A681 A4

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

EN 10028-2 10CrMo9-10 (EN 10028-2:2017) and ASTM A681 A4 (ASTM A681:2008) are both steel grades. EN 10028-2 10CrMo9-10 is classified under Alloy Steel, while ASTM A681 A4 is classified under Tool & Die Steels — a different category, which is worth noting alongside the chemistry match below. EN 10028-2 10CrMo9-10 is typically used for flat products for pressure purposes, while ASTM A681 A4 is commonly used for tools, dies and fixtures (clause 1.2). EN 10028-2 10CrMo9-10 is defined under European Standard (EN), originating from Europe, while ASTM A681 A4 is defined under ASTM International, originating from United States.

As per chemical composition, EN 10028-2 10CrMo9-10 vs ASTM A681 A4 is a 65.2% 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 65%.

Frequently Compared With EN 10028-2 10CrMo9-10:
EN 10028-2 12CrMo9-10 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 10Mo6 IS 1570 (Part 7) 10Mo6H IS 1570 (Part 4) 105Cr5 IS 4367 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 7) 10Cr36Mo10H
Match Breakdown
CHEMISTRY MATCH
65.2%
MECHANICAL MATCH
No shared data
OVERALL
65%
Specifications
Property EN 10028-2 10CrMo9-10 ASTM A681 A4
Standard EN 10028-2:2017 ASTM A681:2008
Category Alloy Steel Tool & Die Steels
C (%) 0.08-0.14 0.95-1.05
Si (%) <=0.50 0.10-0.70
Mn (%) 0.40-0.80 1.80-2.20
P (%) <=0.020 <=0.030
S (%) <=0.010 <=0.030
N (%) <=0.012 Not specified
Cr (%) 2.00-2.50 0.90-2.20
Cu (%) <=0.30 Not specified
Mo (%) 0.90-1.10 0.90-1.40
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property EN 10028-2 10CrMo9-10 ASTM A681 A4
Tensile Strength 480-630 MPa Not specified
Yield Strength >=310 MPa Not specified
Elongation >=18% Not specified
Condition Usual delivery condition normalized and tempered (+NT), nominal thickness up to 16 mm; transverse direction, Yield Strength is ReH, Elongation is A Annealed (maximum Brinell hardness)
Hardness Not specified <=241 HB
Typical Applications
EN 10028-2 10CrMo9-10
Flat products for pressure purposes
ASTM A681 A4
Tools, dies and fixtures (clause 1.2)
Key Differences
Can EN 10028-2 10CrMo9-10 Be Substituted With ASTM A681 A4?
EN 10028-2 10CrMo9-10 and ASTM A681 A4 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.
On M-EX Right Now
EN 10028-2 10CrMo9-10
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ASTM A681 A4
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Frequently Asked Questions
What is the difference between EN 10028-2 10CrMo9-10 and ASTM A681 A4?
Different category: EN 10028-2 10CrMo9-10 is Alloy Steel, ASTM A681 A4 is Tool & Die Steels. EN 10028-2 10CrMo9-10 specifies N, Cu which are not specified for ASTM A681 A4.
Can EN 10028-2 10CrMo9-10 be substituted with ASTM A681 A4?
EN 10028-2 10CrMo9-10 and ASTM A681 A4 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.