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EN ISO 4957 X155CrVMo12-1 vs AISI 52100

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

EN ISO 4957 X155CrVMo12-1 (EN ISO 4957:2018) and AISI 52100 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 AISI 52100 is commonly used for anti-friction bearings, ball screws, precision rollers. EN ISO 4957 X155CrVMo12-1 is defined under European Standard (EN), originating from Europe, while AISI 52100 is defined under AISI, originating from United States.

As per chemical composition, EN ISO 4957 X155CrVMo12-1 vs AISI 52100 is a 63.1% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

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 IS 1570 (Part 6) 103T3
Other Tool & Die Steels Grades to Compare With EN ISO 4957 X155CrVMo12-1:
IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
63.1%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property EN ISO 4957 X155CrVMo12-1 AISI 52100
Standard EN ISO 4957:2018 AISI
Category Tool & Die Steels Tool & Die Steels
C (%) 1.55–1.65 0.93–1.05
Mn (%) 0.20–0.50 0.25–0.45
Cr (%) 11.50–12.50 1.35–1.60
Mo (%) 0.60–0.80 Not specified
V (%) 0.70–1.00 Not specified
Si (%) ≤0.40 0.15–0.35
S (%) Not specified ≤0.025
P (%) Not specified ≤0.025
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 AISI 52100
Hardness HRC (hardened) 58–62 Not specified
Hardness HB (annealed) ≤255 Not specified
Wear Resistance Excellent Not specified
Tensile Strength Not specified ≥620 MPa (annealed)
Hardness HRC Not specified 60–66 (hardened)
Hardness HB Not specified 179–229 (annealed)
Typical Applications
EN ISO 4957 X155CrVMo12-1
Blanking dies, forming dies, thread rolling dies, gauges
AISI 52100
Anti-friction bearings, ball screws, precision rollers
Key Differences
Can EN ISO 4957 X155CrVMo12-1 Be Substituted With AISI 52100?
EN ISO 4957 X155CrVMo12-1 and AISI 52100 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)
AISI 52100
Round Bar → (3 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3000–3200 mm (118.11–125.98 in)
On M-EX Right Now
EN ISO 4957 X155CrVMo12-1
3 active listings and RFQs →
AISI 52100
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN ISO 4957 X155CrVMo12-1 and AISI 52100?
EN ISO 4957 X155CrVMo12-1 specifies Mo, V which are not specified for AISI 52100. AISI 52100 specifies S, P which are not specified for EN ISO 4957 X155CrVMo12-1.
Can EN ISO 4957 X155CrVMo12-1 be substituted with AISI 52100?
EN ISO 4957 X155CrVMo12-1 and AISI 52100 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.