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DIN EN ISO 4957 1.2379 vs GB/T 1299 4Cr5MoSiV

Minimal Match — 41.9% match based on chemical composition and mechanical property overlap.

DIN EN ISO 4957 1.2379 (DIN EN ISO 4957:2018-11) and GB/T 1299 4Cr5MoSiV (GB/T 1299-2014) 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 GB/T 1299 4Cr5MoSiV is commonly used for die casting dies, extrusion tooling. DIN EN ISO 4957 1.2379 is defined under European Standard (EN), originating from Europe, while GB/T 1299 4Cr5MoSiV is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, DIN EN ISO 4957 1.2379 vs GB/T 1299 4Cr5MoSiV is a 62.8% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 41.9%.

Frequently Compared With DIN EN ISO 4957 1.2379:
EN ISO 683-17 100Cr6 GOST 5950 4H5MFS IS 1570 (Part 6) 133T3 IS 1570 (Part 6) 55T8 AISI 52100 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
62.8%
MECHANICAL MATCH
0%
OVERALL
41.9%
Specifications
Property DIN EN ISO 4957 1.2379 GB/T 1299 4Cr5MoSiV
Standard DIN EN ISO 4957:2018-11 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 1.50–1.60 0.32–0.45
Mn (%) 0.25–0.60 0.20–0.50
Si (%) 0.10–0.40 0.80–1.20
Cr (%) 11.00–13.00 4.75–5.50
Mo (%) 0.70–1.00 1.10–1.60
V (%) 0.80–1.10 0.30–0.60
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 GB/T 1299 4Cr5MoSiV
Hardness (annealed) ≤255 HB Not specified
Hardness (hardened) 58–62 HRC Not specified
Compressive Strength 2600 MPa Not specified
Hardness HRC (hardened) Not specified 40–54
Hardness HB (annealed) Not specified ≤235
Typical Applications
DIN EN ISO 4957 1.2379
Blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies
GB/T 1299 4Cr5MoSiV
Die casting dies, extrusion tooling
Key Differences
Can DIN EN ISO 4957 1.2379 Be Substituted With GB/T 1299 4Cr5MoSiV?
DIN EN ISO 4957 1.2379 and GB/T 1299 4Cr5MoSiV 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)
GB/T 1299 4Cr5MoSiV
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 →
GB/T 1299 4Cr5MoSiV
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between DIN EN ISO 4957 1.2379 and GB/T 1299 4Cr5MoSiV?
DIN EN ISO 4957 1.2379 specifies S, P which are not specified for GB/T 1299 4Cr5MoSiV.
Can DIN EN ISO 4957 1.2379 be substituted with GB/T 1299 4Cr5MoSiV?
DIN EN ISO 4957 1.2379 and GB/T 1299 4Cr5MoSiV 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.