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EN ISO 4957 X40CrMoV5-1 vs GOST 5950 3H2W8F

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

EN ISO 4957 X40CrMoV5-1 (EN ISO 4957:2018) and GOST 5950 3H2W8F (GOST 5950-2000) 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 GOST 5950 3H2W8F is commonly used for used for forging dies, extrusion tools, hot punches, mandrels, and die inserts.. EN ISO 4957 X40CrMoV5-1 is defined under European Standard (EN) (Europe).

As per chemical composition, EN ISO 4957 X40CrMoV5-1 vs GOST 5950 3H2W8F is a 54.7% 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 GB/T 1299 3Cr2W8V GOST 5950 4H5MFS IS 1570 (Part 6) 103T3 AISI 52100
Other Tool & Die Steels Grades to Compare With EN ISO 4957 X40CrMoV5-1:
IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
54.7%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property EN ISO 4957 X40CrMoV5-1 GOST 5950 3H2W8F
Standard EN ISO 4957:2018 GOST 5950-2000
Category Tool & Die Steels Tool & Die Steels
C (%) 0.35–0.42 0.3-0.4
Si (%) 0.80–1.20 0.2-0.5
Mn (%) 0.30–0.50 Not specified
Cr (%) 4.75–5.50 2.2-2.7
Mo (%) 1.20–1.50 Not specified
V (%) 0.85–1.15 0.3-0.6
W (%) Not specified 7.5-9.0
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 GOST 5950 3H2W8F
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 1400-1700 MPa
Yield Strength Not specified 1200 MPa min
Elongation Not specified 8% min
Hardness Not specified 45-50 HRC
Typical Applications
EN ISO 4957 X40CrMoV5-1
Die casting dies, extrusion dies, forging dies, hot shear blades
GOST 5950 3H2W8F
Used for forging dies, extrusion tools, hot punches, mandrels, and die inserts.
Key Differences
Can EN ISO 4957 X40CrMoV5-1 Be Substituted With GOST 5950 3H2W8F?
EN ISO 4957 X40CrMoV5-1 and GOST 5950 3H2W8F 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)
GOST 5950 3H2W8F
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2800–4300 mm (110.24–169.29 in)
On M-EX Right Now
EN ISO 4957 X40CrMoV5-1
3 active listings and RFQs →
GOST 5950 3H2W8F
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN ISO 4957 X40CrMoV5-1 and GOST 5950 3H2W8F?
EN ISO 4957 X40CrMoV5-1 specifies Mn, Mo which are not specified for GOST 5950 3H2W8F. GOST 5950 3H2W8F specifies W which is not specified for EN ISO 4957 X40CrMoV5-1.
Can EN ISO 4957 X40CrMoV5-1 be substituted with GOST 5950 3H2W8F?
EN ISO 4957 X40CrMoV5-1 and GOST 5950 3H2W8F 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.