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ASTM A681 P4 vs DIN EN ISO 4957 1.2379

Minimal Match — 47.7% match based on chemical composition and mechanical property overlap.

ASTM A681 P4 (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 P4 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 P4 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 P4 vs DIN EN ISO 4957 1.2379 is a 71.5% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 47.7%.

Frequently Compared With ASTM A681 P4:
EN ISO 683-17 100Cr6 GB/T 1299 4Cr5MoSiV GOST 5950 4H5MFS EN ISO 4957 1.2316 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 118T3 IS 1570 (Part 6) 133T3 GOST 5950 3H2W8F GOST 5950 4H5MFS1 DIN EN ISO 4957 1.2344 GB/T 1299 4Cr5MoSiV1 GB/T 1299 3Cr2W8V
Match Breakdown
CHEMISTRY MATCH
71.5%
MECHANICAL MATCH
0%
OVERALL
47.7%
Specifications
Property ASTM A681 P4 DIN EN ISO 4957 1.2379
Standard ASTM A681:2008 DIN EN ISO 4957:2018-11
Category Tool & Die Steels Tool & Die Steels
C (%) <=0.12 1.50–1.60
Mn (%) 0.20-0.60 0.25–0.60
P (%) <=0.030 ≤0.030
S (%) <=0.030 ≤0.030
Si (%) 0.10-0.40 0.10–0.40
Cr (%) 4.00-5.25 11.00–13.00
Mo (%) 0.40-1.00 0.70–1.00
V (%) Not specified 0.80–1.10
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 P4 DIN EN ISO 4957 1.2379
Hardness <=131 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 P4
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
Key Differences
Can ASTM A681 P4 Be Substituted With DIN EN ISO 4957 1.2379?
ASTM A681 P4 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 P4
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 P4
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 P4 and DIN EN ISO 4957 1.2379?
DIN EN ISO 4957 1.2379 specifies V which is not specified for ASTM A681 P4.
Can ASTM A681 P4 be substituted with DIN EN ISO 4957 1.2379?
ASTM A681 P4 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.