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ASTM A681 A3 vs DIN EN ISO 4957 1.2379

Minimal Match — 44.6% match based on chemical composition and mechanical property overlap.

ASTM A681 A3 (ASTM A681:2008) and DIN EN ISO 4957 1.2379 (DIN EN ISO 4957:2018-11) are both steel grades. Both fall under the Tool & Die Steels category. ASTM A681 A3 is typically used for tools, dies and fixtures (clause 1.2), while DIN EN ISO 4957 1.2379 is commonly used for blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies. ASTM A681 A3 is defined under ASTM International, originating from United States, while DIN EN ISO 4957 1.2379 is defined under European Standard (EN), originating from Europe.

As per chemical composition, ASTM A681 A3 vs DIN EN ISO 4957 1.2379 is a 66.9% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 44.6%.

Frequently Compared With ASTM A681 A3:
IS 1570 (Part 6) 118T3 GOST 5950 3H2W8F GOST 5950 4H5MFS1 EN ISO 4957 1.2316 EN ISO 683-17 100Cr6 DIN EN ISO 4957 1.2344 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 133T3 GB/T 1299 3Cr2W8V GOST 5950 4H5MFS GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1
Match Breakdown
CHEMISTRY MATCH
66.9%
MECHANICAL MATCH
0%
OVERALL
44.6%
Specifications
Property ASTM A681 A3 DIN EN ISO 4957 1.2379
Standard ASTM A681:2008 DIN EN ISO 4957:2018-11
Category Tool & Die Steels Tool & Die Steels
C (%) 1.20-1.30 1.50–1.60
Mn (%) 0.40-0.60 0.25–0.60
P (%) <=0.030 ≤0.030
S (%) <=0.030 ≤0.030
Si (%) 0.10-0.70 0.10–0.40
Cr (%) 4.75-5.50 11.00–13.00
V (%) 0.80-1.40 0.80–1.10
Mo (%) 0.90-1.40 0.70–1.00
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 A3 DIN EN ISO 4957 1.2379
Hardness <=229 HB Not specified
Condition Annealed (maximum Brinell hardness) Not specified
Hardness (annealed) Not specified ≤255 HB
Hardness (hardened) Not specified 58–62 HRC
Compressive Strength Not specified 2600 MPa
Typical Applications
ASTM A681 A3
Tools, dies and fixtures (clause 1.2)
DIN EN ISO 4957 1.2379
Blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies
Can ASTM A681 A3 Be Substituted With DIN EN ISO 4957 1.2379?
ASTM A681 A3 and DIN EN ISO 4957 1.2379 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 A3
No active listings currently.
DIN EN ISO 4957 1.2379
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2800–3300 mm (110.24–129.92 in)
On M-EX Right Now
ASTM A681 A3
0 active listings and RFQs →
DIN EN ISO 4957 1.2379
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A681 A3 and DIN EN ISO 4957 1.2379?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM A681 A3 be substituted with DIN EN ISO 4957 1.2379?
ASTM A681 A3 and DIN EN ISO 4957 1.2379 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.