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DIN EN ISO 4957 1.2379 vs GOST 5950 4H5MFS

Minimal Match — 39.6% match based on chemical composition and mechanical property overlap.

DIN EN ISO 4957 1.2379 (DIN EN ISO 4957:2018-11) and GOST 5950 4H5MFS (GOST 5950-2000) are both steel grades. Both fall under the Tool & Die Steels category. DIN EN ISO 4957 1.2379 is typically used for blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies, while GOST 5950 4H5MFS is commonly used for used for die casting dies, forging tools, extrusion dies, punches, and hot shear blades.. DIN EN ISO 4957 1.2379 is defined under European Standard (EN) (Europe).

As per chemical composition, DIN EN ISO 4957 1.2379 vs GOST 5950 4H5MFS is a 59.5% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 39.6%.

Frequently Compared With DIN EN ISO 4957 1.2379:
EN ISO 683-17 100Cr6 GB/T 1299 4Cr5MoSiV IS 1570 (Part 6) 133T3 AISI 52100 IS 1570 (Part 6) 55T8 IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 50T8 IS 1570 (Part 6) 65T6 IS 1570 (Part 6) 75T6 IS 1570 (Part 6) 60T6 IS 1570 (Part 6) 70T3 IS 3748 70T6
Match Breakdown
CHEMISTRY MATCH
59.5%
MECHANICAL MATCH
0%
OVERALL
39.6%
Specifications
Property DIN EN ISO 4957 1.2379 GOST 5950 4H5MFS
Standard DIN EN ISO 4957:2018-11 GOST 5950-2000
Category Tool & Die Steels Tool & Die Steels
C (%) 1.50–1.60 0.35-0.45
Mn (%) 0.25–0.60 Not specified
Si (%) 0.10–0.40 0.8-1.2
Cr (%) 11.00–13.00 4.5-5.5
Mo (%) 0.70–1.00 1.2-1.6
V (%) 0.80–1.10 0.3-0.6
S (%) ≤0.030 Not specified
P (%) ≤0.030 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property DIN EN ISO 4957 1.2379 GOST 5950 4H5MFS
Hardness (annealed) ≤255 HB Not specified
Hardness (hardened) 58–62 HRC Not specified
Compressive Strength 2600 MPa 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
DIN EN ISO 4957 1.2379
Blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies
GOST 5950 4H5MFS
Used for die casting dies, forging tools, extrusion dies, punches, and hot shear blades.
Key Differences
Can DIN EN ISO 4957 1.2379 Be Substituted With GOST 5950 4H5MFS?
DIN EN ISO 4957 1.2379 and GOST 5950 4H5MFS 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
DIN EN ISO 4957 1.2379
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2800–3300 mm (110.24–129.92 in)
GOST 5950 4H5MFS
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–2700 mm (98.43–106.3 in)
On M-EX Right Now
DIN EN ISO 4957 1.2379
2 active listings and RFQs →
GOST 5950 4H5MFS
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between DIN EN ISO 4957 1.2379 and GOST 5950 4H5MFS?
DIN EN ISO 4957 1.2379 specifies Mn, S, P which are not specified for GOST 5950 4H5MFS.
Can DIN EN ISO 4957 1.2379 be substituted with GOST 5950 4H5MFS?
DIN EN ISO 4957 1.2379 and GOST 5950 4H5MFS 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.