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EN ISO 4957 X30WCrV9-3 vs GOST 5950 4H5MFS1

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

EN ISO 4957 X30WCrV9-3 (EN ISO 4957:2018) and GOST 5950 4H5MFS1 (GOST 5950-2000) are both steel grades. Both fall under the Tool & Die Steels category. EN ISO 4957 X30WCrV9-3 is typically used for hot extrusion dies, hot forging dies for non-ferrous metals, while GOST 5950 4H5MFS1 is commonly used for used for forging dies, pressure casting dies, hot punches, extrusion tooling, and die inserts.. EN ISO 4957 X30WCrV9-3 is defined under European Standard (EN) (Europe).

As per chemical composition, EN ISO 4957 X30WCrV9-3 vs GOST 5950 4H5MFS1 is a 57.2% 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 X30WCrV9-3:
AISI 52100 EN ISO 683-17 100Cr6 DIN EN ISO 4957 1.2344 GB/T 1299 4Cr5MoSiV1 DIN EN ISO 4957 1.2379 GOST 5950 3H2W8F GB/T 1299 4Cr5MoSiV EN ISO 4957 1.2316 GOST 5950 4H5MFS GB/T 1299 3Cr2W8V IS 1570 (Part 6) 103T3
Other Tool & Die Steels Grades to Compare With EN ISO 4957 X30WCrV9-3:
IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
57.2%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property EN ISO 4957 X30WCrV9-3 GOST 5950 4H5MFS1
Standard EN ISO 4957:2018 GOST 5950-2000
Category Tool & Die Steels Tool & Die Steels
C (%) 0.26–0.36 0.35-0.45
Si (%) 0.15–0.50 0.8-1.2
Mn (%) 0.15–0.40 Not specified
Cr (%) 2.50–3.50 4.5-5.5
W (%) 8.50–10.00 Not specified
V (%) 0.30–0.60 0.3-0.6
Mo (%) Not specified 1.2-1.6
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 X30WCrV9-3 GOST 5950 4H5MFS1
Hardness HRC (hardened) 38–52 Not specified
Hardness HB (annealed) ≤229 Not specified
Tensile Strength Not specified 1350-1650 MPa
Yield Strength Not specified 1150 MPa min
Elongation Not specified 9% min
Hardness Not specified 44-50 HRC
Typical Applications
EN ISO 4957 X30WCrV9-3
Hot extrusion dies, hot forging dies for non-ferrous metals
GOST 5950 4H5MFS1
Used for forging dies, pressure casting dies, hot punches, extrusion tooling, and die inserts.
Key Differences
Can EN ISO 4957 X30WCrV9-3 Be Substituted With GOST 5950 4H5MFS1?
EN ISO 4957 X30WCrV9-3 and GOST 5950 4H5MFS1 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 X30WCrV9-3
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2800–3600 mm (110.24–141.73 in)
GOST 5950 4H5MFS1
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3000–3100 mm (118.11–122.05 in)
On M-EX Right Now
EN ISO 4957 X30WCrV9-3
2 active listings and RFQs →
GOST 5950 4H5MFS1
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN ISO 4957 X30WCrV9-3 and GOST 5950 4H5MFS1?
EN ISO 4957 X30WCrV9-3 specifies Mn, W which are not specified for GOST 5950 4H5MFS1. GOST 5950 4H5MFS1 specifies Mo which is not specified for EN ISO 4957 X30WCrV9-3.
Can EN ISO 4957 X30WCrV9-3 be substituted with GOST 5950 4H5MFS1?
EN ISO 4957 X30WCrV9-3 and GOST 5950 4H5MFS1 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.