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ASTM A681 D4 vs EN ISO 4957 X155CrVMo12-1

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

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

As per chemical composition, ASTM A681 D4 vs EN ISO 4957 X155CrVMo12-1 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 ASTM A681 D4:
GB/T 1299 3Cr2W8V EN ISO 4957 1.2316 EN ISO 683-17 100Cr6 GOST 5950 3H2W8F GB/T 1299 4Cr5MoSiV1 DIN EN ISO 4957 1.2344 DIN EN ISO 4957 1.2379 IS 1570 (Part 6) 118T3 IS 1570 (Part 6) 133T3 GB/T 1299 4Cr5MoSiV GOST 5950 4H5MFS1 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
67.9%
MECHANICAL MATCH
100%
OVERALL
69.9%
Specifications
Property ASTM A681 D4 EN ISO 4957 X155CrVMo12-1
Standard ASTM A681:2008 EN ISO 4957:2018
Category Tool & Die Steels Tool & Die Steels
C (%) 2.05-2.40 1.55–1.65
Mn (%) 0.10-0.60 0.20–0.50
P (%) <=0.030 Not specified
S (%) <=0.030 Not specified
Si (%) 0.10-0.60 ≤0.40
Cr (%) 11.00-13.00 11.50–12.50
V (%) 0.15-1.00 0.70–1.00
Mo (%) 0.70-1.20 0.60–0.80
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 D4 EN ISO 4957 X155CrVMo12-1
Hardness <=255 HB Not specified
Condition Annealed (maximum Brinell hardness) Not specified
Hardness HRC (hardened) Not specified 58–62
Hardness HB (annealed) Not specified ≤255
Wear Resistance Not specified Excellent
Typical Applications
ASTM A681 D4
Tools, dies and fixtures (clause 1.2)
EN ISO 4957 X155CrVMo12-1
Blanking dies, forming dies, thread rolling dies, gauges
Key Differences
Can ASTM A681 D4 Be Substituted With EN ISO 4957 X155CrVMo12-1?
ASTM A681 D4 and EN ISO 4957 X155CrVMo12-1 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 D4
No active listings currently.
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)
On M-EX Right Now
ASTM A681 D4
0 active listings and RFQs →
EN ISO 4957 X155CrVMo12-1
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A681 D4 and EN ISO 4957 X155CrVMo12-1?
ASTM A681 D4 specifies P, S which are not specified for EN ISO 4957 X155CrVMo12-1.
Can ASTM A681 D4 be substituted with EN ISO 4957 X155CrVMo12-1?
ASTM A681 D4 and EN ISO 4957 X155CrVMo12-1 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.