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GB/T 1299 Cr12 vs GB/T 1299 4Cr5MoSiV1

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

GB/T 1299 Cr12 (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 Cr12 is typically used for cold forming dies, blanking dies, while GB/T 1299 4Cr5MoSiV1 is commonly used for die casting dies, forging dies, extrusion tools. GB/T 1299 Cr12 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 Cr12 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 35%.

Frequently Compared With GB/T 1299 Cr12:
GOST 5950 4H5MFS1 AISI 52100 DIN EN ISO 4957 1.2344 EN ISO 683-17 100Cr6 EN ISO 4957 1.2316 DIN EN ISO 4957 1.2379 GB/T 1299 3Cr2W8V GB/T 1299 4Cr5MoSiV GOST 5950 4H5MFS GOST 5950 3H2W8F IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 118T3
Match Breakdown
CHEMISTRY MATCH
59.5%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property GB/T 1299 Cr12 GB/T 1299 4Cr5MoSiV1
Standard GB/T 1299-2014 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 2.00–2.30 0.32–0.45
Si (%) ≤0.40 0.80–1.20
Mn (%) ≤0.40 0.20–0.50
Cr (%) 11.50–13.00 4.75–5.50
Mo (%) Not specified 1.20–1.75
V (%) Not specified 0.80–1.20
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 Cr12 GB/T 1299 4Cr5MoSiV1
Hardness HRC (hardened) 60–64 42–54
Hardness HB (annealed) ≤255 ≤235
Typical Applications
GB/T 1299 Cr12
Cold forming dies, blanking dies
GB/T 1299 4Cr5MoSiV1
Die casting dies, forging dies, extrusion tools
Key Differences
Can GB/T 1299 Cr12 Be Substituted With GB/T 1299 4Cr5MoSiV1?
GB/T 1299 Cr12 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 Cr12
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3000–3400 mm (118.11–133.86 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 Cr12
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 Cr12 and GB/T 1299 4Cr5MoSiV1?
GB/T 1299 4Cr5MoSiV1 specifies Mo, V which are not specified for GB/T 1299 Cr12.
Can GB/T 1299 Cr12 be substituted with GB/T 1299 4Cr5MoSiV1?
GB/T 1299 Cr12 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.