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GOST 5950 H12F1 vs DIN EN ISO 4957 1.2379

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

GOST 5950 H12F1 (GOST 5950-2000) and DIN EN ISO 4957 1.2379 (DIN EN ISO 4957:2018-11) are both steel grades. Both fall under the Tool & Die Steels category. GOST 5950 H12F1 is typically used for used for blanking dies, punches, forming dies, cutters, and rolling tools., while DIN EN ISO 4957 1.2379 is commonly used for blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies. DIN EN ISO 4957 1.2379 is defined under European Standard (EN) (Europe).

As per chemical composition, GOST 5950 H12F1 vs DIN EN ISO 4957 1.2379 is a 77.2% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With GOST 5950 H12F1:
GOST 5950 4H5MFS GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS1 EN ISO 4957 1.2316 DIN EN ISO 4957 1.2344 AISI 52100 GB/T 1299 3Cr2W8V GOST 5950 3H2W8F EN ISO 683-17 100Cr6
Other Tool & Die Steels Grades to Compare With GOST 5950 H12F1:
IS 3748 103T3 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
77.2%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property GOST 5950 H12F1 DIN EN ISO 4957 1.2379
Standard GOST 5950-2000 DIN EN ISO 4957:2018-11
Category Tool & Die Steels Tool & Die Steels
C (%) 1.9-2.2 1.50–1.60
Cr (%) 11-13 11.00–13.00
V (%) 0.7-1.0 0.80–1.10
Mn (%) 0.2-0.6 0.25–0.60
Si (%) 0.2-0.6 0.10–0.40
Mo (%) Not specified 0.70–1.00
S (%) Not specified ≤0.030
P (%) Not specified ≤0.030
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property GOST 5950 H12F1 DIN EN ISO 4957 1.2379
Tensile Strength 1050-1250 MPa Not specified
Yield Strength 850 MPa min Not specified
Elongation 5% min Not specified
Hardness 61-65 HRC Not specified
Hardness (annealed) Not specified ≤255 HB
Hardness (hardened) Not specified 58–62 HRC
Compressive Strength Not specified 2600 MPa
Typical Applications
GOST 5950 H12F1
Used for blanking dies, punches, forming dies, cutters, and rolling tools.
DIN EN ISO 4957 1.2379
Blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies
Key Differences
Can GOST 5950 H12F1 Be Substituted With DIN EN ISO 4957 1.2379?
GOST 5950 H12F1 and DIN EN ISO 4957 1.2379 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
GOST 5950 H12F1
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3600–4200 mm (141.73–165.35 in)
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)
On M-EX Right Now
GOST 5950 H12F1
2 active listings and RFQs →
DIN EN ISO 4957 1.2379
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 5950 H12F1 and DIN EN ISO 4957 1.2379?
DIN EN ISO 4957 1.2379 specifies Mo, S, P which are not specified for GOST 5950 H12F1.
Can GOST 5950 H12F1 be substituted with DIN EN ISO 4957 1.2379?
GOST 5950 H12F1 and DIN EN ISO 4957 1.2379 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.