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EN ISO 4957 X40CrMoV5-1 vs AISI 52100

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

EN ISO 4957 X40CrMoV5-1 (EN ISO 4957:2018) and AISI 52100 are both steel grades. Both fall under the Tool & Die Steels category. EN ISO 4957 X40CrMoV5-1 is typically used for die casting dies, extrusion dies, forging dies, hot shear blades, while AISI 52100 is commonly used for anti-friction bearings, ball screws, precision rollers. EN ISO 4957 X40CrMoV5-1 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 X40CrMoV5-1 vs AISI 52100 is a 62.7% 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 X40CrMoV5-1:
GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1 DIN EN ISO 4957 1.2344 EN ISO 683-17 100Cr6 GOST 5950 4H5MFS1 EN ISO 4957 1.2316 DIN EN ISO 4957 1.2379 GOST 5950 3H2W8F GB/T 1299 3Cr2W8V GOST 5950 4H5MFS IS 1570 (Part 6) 103T3
Other Tool & Die Steels Grades to Compare With EN ISO 4957 X40CrMoV5-1:
IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
62.7%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property EN ISO 4957 X40CrMoV5-1 AISI 52100
Standard EN ISO 4957:2018 AISI
Category Tool & Die Steels Tool & Die Steels
C (%) 0.35–0.42 0.93–1.05
Si (%) 0.80–1.20 0.15–0.35
Mn (%) 0.30–0.50 0.25–0.45
Cr (%) 4.75–5.50 1.35–1.60
Mo (%) 1.20–1.50 Not specified
V (%) 0.85–1.15 Not specified
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 X40CrMoV5-1 AISI 52100
Hardness HRC (hardened) 42–54 Not specified
Hardness HB (annealed) ≤235 Not specified
Hot Strength Excellent to 600°C 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 X40CrMoV5-1
Die casting dies, extrusion dies, forging dies, hot shear blades
AISI 52100
Anti-friction bearings, ball screws, precision rollers
Key Differences
Can EN ISO 4957 X40CrMoV5-1 Be Substituted With AISI 52100?
EN ISO 4957 X40CrMoV5-1 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 X40CrMoV5-1
Round Bar → (3 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2600–4800 mm (102.36–188.98 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 X40CrMoV5-1
3 active listings and RFQs →
AISI 52100
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN ISO 4957 X40CrMoV5-1 and AISI 52100?
EN ISO 4957 X40CrMoV5-1 specifies Mo, V which are not specified for AISI 52100. AISI 52100 specifies S, P which are not specified for EN ISO 4957 X40CrMoV5-1.
Can EN ISO 4957 X40CrMoV5-1 be substituted with AISI 52100?
EN ISO 4957 X40CrMoV5-1 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.