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GB/T 1299 Cr12MoV vs GB/T 1299 4Cr5MoSiV1

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

GB/T 1299 Cr12MoV (GB/T 1299-2014) and GB/T 1299 4Cr5MoSiV1 (GB/T 1299-2014) are both steel grades. Both fall under the Tool & Die Steels category. GB/T 1299 Cr12MoV is typically used for blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies, while GB/T 1299 4Cr5MoSiV1 is commonly used for die casting dies, forging dies, extrusion tools. GB/T 1299 Cr12MoV is defined under Guobiao Standards (GB/T), originating from China, while GB/T 1299 4Cr5MoSiV1 is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, GB/T 1299 Cr12MoV vs GB/T 1299 4Cr5MoSiV1 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 GB/T 1299 Cr12MoV:
DIN EN ISO 4957 1.2379 DIN EN ISO 4957 1.2344 AISI 52100 EN ISO 683-17 100Cr6 EN ISO 4957 1.2316 GB/T 1299 4Cr5MoSiV GOST 5950 4H5MFS1 GOST 5950 4H5MFS GB/T 1299 3Cr2W8V GOST 5950 3H2W8F IS 1570 (Part 6) 103T3 IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
59.5%
MECHANICAL MATCH
0%
OVERALL
39.6%
Specifications
Property GB/T 1299 Cr12MoV GB/T 1299 4Cr5MoSiV1
Standard GB/T 1299-2014 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 1.45–1.70 0.32–0.45
Mn (%) ≤0.40 0.20–0.50
Si (%) ≤0.40 0.80–1.20
Cr (%) 11.00–13.00 4.75–5.50
Mo (%) 0.40–0.60 1.20–1.75
V (%) 0.15–0.30 0.80–1.20
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 GB/T 1299 Cr12MoV GB/T 1299 4Cr5MoSiV1
Hardness (annealed) ≤255 HB Not specified
Hardness (hardened) 57–62 HRC Not specified
Compressive Strength 2400 MPa Not specified
Hardness HRC (hardened) Not specified 42–54
Hardness HB (annealed) Not specified ≤235
Typical Applications
GB/T 1299 Cr12MoV
Blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies
GB/T 1299 4Cr5MoSiV1
Die casting dies, forging dies, extrusion tools
Key Differences
Can GB/T 1299 Cr12MoV Be Substituted With GB/T 1299 4Cr5MoSiV1?
GB/T 1299 Cr12MoV and GB/T 1299 4Cr5MoSiV1 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 Cr12MoV
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3100–3400 mm (122.05–133.86 in)
GB/T 1299 4Cr5MoSiV1
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2700–4100 mm (106.3–161.42 in)
On M-EX Right Now
GB/T 1299 Cr12MoV
2 active listings and RFQs →
GB/T 1299 4Cr5MoSiV1
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 1299 Cr12MoV and GB/T 1299 4Cr5MoSiV1?
GB/T 1299 Cr12MoV specifies S, P which are not specified for GB/T 1299 4Cr5MoSiV1.
Can GB/T 1299 Cr12MoV be substituted with GB/T 1299 4Cr5MoSiV1?
GB/T 1299 Cr12MoV and GB/T 1299 4Cr5MoSiV1 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.