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EN ISO 4957 X155CrVMo12-1 vs ASTM A681 D4

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

EN ISO 4957 X155CrVMo12-1 (EN ISO 4957:2018) and ASTM A681 D4 (ASTM A681:2008) are both steel grades. Both fall under the Tool & Die Steels category. EN ISO 4957 X155CrVMo12-1 is typically used for blanking dies, forming dies, thread rolling dies, gauges, while ASTM A681 D4 is commonly used for tools, dies and fixtures (clause 1.2). EN ISO 4957 X155CrVMo12-1 is defined under European Standard (EN), originating from Europe, while ASTM A681 D4 is defined under ASTM International, originating from United States.

As per chemical composition, EN ISO 4957 X155CrVMo12-1 vs ASTM A681 D4 is a 67.9% match. As per mechanical properties, the match is 100%. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With EN ISO 4957 X155CrVMo12-1:
DIN EN ISO 4957 1.2344 EN ISO 683-17 100Cr6 EN ISO 4957 1.2316 GOST 5950 3H2W8F GOST 5950 4H5MFS DIN EN ISO 4957 1.2379 GB/T 1299 3Cr2W8V GOST 5950 4H5MFS1 GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1 AISI 52100 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
67.9%
MECHANICAL MATCH
100%
OVERALL
69.9%
Specifications
Property EN ISO 4957 X155CrVMo12-1 ASTM A681 D4
Standard EN ISO 4957:2018 ASTM A681:2008
Category Tool & Die Steels Tool & Die Steels
C (%) 1.55–1.65 2.05-2.40
Mn (%) 0.20–0.50 0.10-0.60
Cr (%) 11.50–12.50 11.00-13.00
Mo (%) 0.60–0.80 0.70-1.20
V (%) 0.70–1.00 0.15-1.00
Si (%) ≤0.40 0.10-0.60
P (%) Not specified <=0.030
S (%) Not specified <=0.030
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property EN ISO 4957 X155CrVMo12-1 ASTM A681 D4
Hardness HRC (hardened) 58–62 Not specified
Hardness HB (annealed) ≤255 Not specified
Wear Resistance Excellent Not specified
Hardness Not specified <=255 HB
Condition Not specified Annealed (maximum Brinell hardness)
Typical Applications
EN ISO 4957 X155CrVMo12-1
Blanking dies, forming dies, thread rolling dies, gauges
ASTM A681 D4
Tools, dies and fixtures (clause 1.2)
Key Differences
Can EN ISO 4957 X155CrVMo12-1 Be Substituted With ASTM A681 D4?
EN ISO 4957 X155CrVMo12-1 and ASTM A681 D4 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
EN ISO 4957 X155CrVMo12-1
Round Bar → (3 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–3200 mm (98.43–125.98 in)
ASTM A681 D4
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On M-EX Right Now
EN ISO 4957 X155CrVMo12-1
3 active listings and RFQs →
ASTM A681 D4
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Frequently Asked Questions
What is the difference between EN ISO 4957 X155CrVMo12-1 and ASTM A681 D4?
ASTM A681 D4 specifies P, S which are not specified for EN ISO 4957 X155CrVMo12-1.
Can EN ISO 4957 X155CrVMo12-1 be substituted with ASTM A681 D4?
EN ISO 4957 X155CrVMo12-1 and ASTM A681 D4 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.