Post Stock Login Register

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

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

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

As per chemical composition, GB/T 1299 4Cr5MoSiV vs DIN EN ISO 4957 1.2379 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 GB/T 1299 4Cr5MoSiV:
EN ISO 683-17 100Cr6 GB/T 1299 4Cr5MoSiV1 DIN EN ISO 4957 1.2344 GB/T 1299 3Cr2W8V GOST 5950 3H2W8F EN ISO 4957 1.2316 GOST 5950 4H5MFS GOST 5950 4H5MFS1 AISI 52100 IS 1570 (Part 6) 70T3 IS 1570 (Part 6) 133T3 IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
62.8%
MECHANICAL MATCH
0%
OVERALL
41.9%
Specifications
Property GB/T 1299 4Cr5MoSiV DIN EN ISO 4957 1.2379
Standard GB/T 1299-2014 DIN EN ISO 4957:2018-11
Category Tool & Die Steels Tool & Die Steels
C (%) 0.32–0.45 1.50–1.60
Si (%) 0.80–1.20 0.10–0.40
Mn (%) 0.20–0.50 0.25–0.60
Cr (%) 4.75–5.50 11.00–13.00
Mo (%) 1.10–1.60 0.70–1.00
V (%) 0.30–0.60 0.80–1.10
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 GB/T 1299 4Cr5MoSiV DIN EN ISO 4957 1.2379
Hardness HRC (hardened) 40–54 Not specified
Hardness HB (annealed) ≤235 Not specified
Hardness (annealed) Not specified ≤255 HB
Hardness (hardened) Not specified 58–62 HRC
Compressive Strength Not specified 2600 MPa
Typical Applications
GB/T 1299 4Cr5MoSiV
Die casting dies, extrusion tooling
DIN EN ISO 4957 1.2379
Blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies
Key Differences
Can GB/T 1299 4Cr5MoSiV Be Substituted With DIN EN ISO 4957 1.2379?
GB/T 1299 4Cr5MoSiV 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
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)
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
GB/T 1299 4Cr5MoSiV
2 active listings and RFQs →
DIN EN ISO 4957 1.2379
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 1299 4Cr5MoSiV and DIN EN ISO 4957 1.2379?
DIN EN ISO 4957 1.2379 specifies S, P which are not specified for GB/T 1299 4Cr5MoSiV.
Can GB/T 1299 4Cr5MoSiV be substituted with DIN EN ISO 4957 1.2379?
GB/T 1299 4Cr5MoSiV 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.