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GOST 5950 H12 vs DIN EN ISO 4957 1.2344

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

GOST 5950 H12 (GOST 5950-2000) and DIN EN ISO 4957 1.2344 (DIN EN ISO 4957:2018-11) are both steel grades. Both fall under the Tool & Die Steels category. GOST 5950 H12 is typically used for used for cold dies, punches, shear blades, rolls, and forming tools., while DIN EN ISO 4957 1.2344 is commonly used for die casting dies, extrusion dies, forging dies, hot shear blades, mandrels, pressure die casting tooling. DIN EN ISO 4957 1.2344 is defined under European Standard (EN) (Europe).

As per chemical composition, GOST 5950 H12 vs DIN EN ISO 4957 1.2344 is a 62.2% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With GOST 5950 H12:
EN ISO 4957 1.2316 GOST 5950 3H2W8F GB/T 1299 3Cr2W8V GOST 5950 4H5MFS1 EN ISO 683-17 100Cr6 GOST 5950 4H5MFS GB/T 1299 4Cr5MoSiV1 DIN EN ISO 4957 1.2379 GB/T 1299 4Cr5MoSiV AISI 52100 IS 3748 103T3 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
62.2%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property GOST 5950 H12 DIN EN ISO 4957 1.2344
Standard GOST 5950-2000 DIN EN ISO 4957:2018-11
Category Tool & Die Steels Tool & Die Steels
C (%) 1.9-2.2 0.37–0.43
Cr (%) 11-13 4.80–5.50
Mn (%) 0.2-0.6 0.30–0.50
Si (%) 0.2-0.6 0.90–1.20
Mo (%) Not specified 1.20–1.50
V (%) Not specified 0.90–1.10
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 H12 DIN EN ISO 4957 1.2344
Tensile Strength 1000-1200 MPa 1200–1600 MPa
Yield Strength 800 MPa min Not specified
Elongation 5% min ≥8%
Hardness 60-64 HRC Not specified
Hardness (annealed) Not specified ≤229 HB
Hardness (hardened) Not specified 44–52 HRC
Typical Applications
GOST 5950 H12
Used for cold dies, punches, shear blades, rolls, and forming tools.
DIN EN ISO 4957 1.2344
Die casting dies, extrusion dies, forging dies, hot shear blades, mandrels, pressure die casting tooling
Key Differences
Can GOST 5950 H12 Be Substituted With DIN EN ISO 4957 1.2344?
GOST 5950 H12 and DIN EN ISO 4957 1.2344 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 H12
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3600–4000 mm (141.73–157.48 in)
DIN EN ISO 4957 1.2344
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3000–3700 mm (118.11–145.67 in)
On M-EX Right Now
GOST 5950 H12
2 active listings and RFQs →
DIN EN ISO 4957 1.2344
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GOST 5950 H12 and DIN EN ISO 4957 1.2344?
DIN EN ISO 4957 1.2344 specifies Mo, V, S, P which are not specified for GOST 5950 H12.
Can GOST 5950 H12 be substituted with DIN EN ISO 4957 1.2344?
GOST 5950 H12 and DIN EN ISO 4957 1.2344 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.