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ASTM A681 D3 vs GB/T 1299 4Cr5MoSiV1

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

ASTM A681 D3 (ASTM A681:2008) and GB/T 1299 4Cr5MoSiV1 (GB/T 1299-2014) are both steel grades. Both fall under the Tool & Die Steels category. ASTM A681 D3 is typically used for blanking dies, forming dies, gauges, rolls, while GB/T 1299 4Cr5MoSiV1 is commonly used for die casting dies, forging dies, extrusion tools. ASTM A681 D3 is defined under ASTM International, originating from United States, while GB/T 1299 4Cr5MoSiV1 is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, ASTM A681 D3 vs GB/T 1299 4Cr5MoSiV1 is a 53.7% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With ASTM A681 D3:
DIN EN ISO 4957 1.2344 AISI 52100 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 GOST 5950 4H5MFS1 IS 3748 103T3 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
53.7%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property ASTM A681 D3 GB/T 1299 4Cr5MoSiV1
Standard ASTM A681:2008 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 2.00-2.35 0.32–0.45
Mn (%) 0.10-0.60 0.20–0.50
P (%) <=0.030 Not specified
S (%) <=0.030 Not specified
Si (%) 0.10-0.60 0.80–1.20
Cr (%) 11.00-13.50 4.75–5.50
V (%) <=1.00 0.80–1.20
W (%) <=1.00 Not specified
Mo (%) Not specified 1.20–1.75
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property ASTM A681 D3 GB/T 1299 4Cr5MoSiV1
Hardness <=255 HB Not specified
Condition Annealed (maximum Brinell hardness) Not specified
Hardness HRC (hardened) Not specified 42–54
Hardness HB (annealed) Not specified ≤235
Typical Applications
ASTM A681 D3
Blanking dies, forming dies, gauges, rolls
GB/T 1299 4Cr5MoSiV1
Die casting dies, forging dies, extrusion tools
Key Differences
Can ASTM A681 D3 Be Substituted With GB/T 1299 4Cr5MoSiV1?
ASTM A681 D3 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
ASTM A681 D3
Round Bar → (5 listings)
Diameter: 80–100 mm (3.15–3.94 in)
Length: 2900–3600 mm (114.17–141.73 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
ASTM A681 D3
5 active listings and RFQs →
GB/T 1299 4Cr5MoSiV1
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A681 D3 and GB/T 1299 4Cr5MoSiV1?
ASTM A681 D3 specifies P, S, W which are not specified for GB/T 1299 4Cr5MoSiV1. GB/T 1299 4Cr5MoSiV1 specifies Mo which is not specified for ASTM A681 D3.
Can ASTM A681 D3 be substituted with GB/T 1299 4Cr5MoSiV1?
ASTM A681 D3 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.