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GB/T 1299 3Cr2W8V vs GB/T 1299 4Cr5MoSiV

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

GB/T 1299 3Cr2W8V (GB/T 1299-2014) and GB/T 1299 4Cr5MoSiV (GB/T 1299-2014) are both steel grades. Both fall under the Tool & Die Steels category. GB/T 1299 3Cr2W8V is typically used for used for hot forging dies, extrusion dies, die-casting molds, hot punches, and hot shear blades., while GB/T 1299 4Cr5MoSiV is commonly used for die casting dies, extrusion tooling. GB/T 1299 3Cr2W8V is defined under Guobiao Standards (GB/T), originating from China, while GB/T 1299 4Cr5MoSiV is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, GB/T 1299 3Cr2W8V vs GB/T 1299 4Cr5MoSiV is a 61.6% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With GB/T 1299 3Cr2W8V:
GOST 5950 3H2W8F EN ISO 683-17 100Cr6 AISI 52100 GOST 5950 4H5MFS IS 1570 (Part 6) 133T3 DIN EN ISO 4957 1.2344 IS 3748 103T3 IS 3748 50T8 IS 3748 70T3 IS 3748 80T3 IS 3748 55T8 IS 3748 133T3
Match Breakdown
CHEMISTRY MATCH
61.6%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property GB/T 1299 3Cr2W8V GB/T 1299 4Cr5MoSiV
Standard GB/T 1299-2014 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 0.30-0.40 0.32–0.45
Si (%) 0.20-0.40 0.80–1.20
Mn (%) 0.20-0.50 0.20–0.50
Cr (%) 2.20-2.70 4.75–5.50
W (%) 7.50-9.00 Not specified
V (%) 0.20-0.50 0.30–0.60
P (%) 0.030 max Not specified
S (%) 0.030 max Not specified
Mo (%) Not specified 1.10–1.60
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 3Cr2W8V GB/T 1299 4Cr5MoSiV
Tensile Strength 1180-1380 MPa Not specified
Yield Strength 980-1180 MPa Not specified
Elongation 10-14% Not specified
Hardness 48-54 HRC Not specified
Hardness HRC (hardened) Not specified 40–54
Hardness HB (annealed) Not specified ≤235
Typical Applications
GB/T 1299 3Cr2W8V
Used for hot forging dies, extrusion dies, die-casting molds, hot punches, and hot shear blades.
GB/T 1299 4Cr5MoSiV
Die casting dies, extrusion tooling
Key Differences
Can GB/T 1299 3Cr2W8V Be Substituted With GB/T 1299 4Cr5MoSiV?
GB/T 1299 3Cr2W8V 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
GB/T 1299 3Cr2W8V
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2800–2900 mm (110.24–114.17 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
GB/T 1299 3Cr2W8V
2 active listings and RFQs →
GB/T 1299 4Cr5MoSiV
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 1299 3Cr2W8V and GB/T 1299 4Cr5MoSiV?
GB/T 1299 3Cr2W8V specifies W, P, S which are not specified for GB/T 1299 4Cr5MoSiV. GB/T 1299 4Cr5MoSiV specifies Mo which is not specified for GB/T 1299 3Cr2W8V.
Can GB/T 1299 3Cr2W8V be substituted with GB/T 1299 4Cr5MoSiV?
GB/T 1299 3Cr2W8V 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.