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ASTM A681 D4 vs GB/T 1299 Cr12Mo1V1

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

ASTM A681 D4 (ASTM A681:2008) and GB/T 1299 Cr12Mo1V1 (GB/T 1299-2014) are both steel grades. Both fall under the Tool & Die Steels category. ASTM A681 D4 is typically used for tools, dies and fixtures (clause 1.2), while GB/T 1299 Cr12Mo1V1 is commonly used for precision blanking dies, thread rolling dies, cold forming. ASTM A681 D4 is defined under ASTM International, originating from United States, while GB/T 1299 Cr12Mo1V1 is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, ASTM A681 D4 vs GB/T 1299 Cr12Mo1V1 is a 66.4% match. As per mechanical properties, the match is 100%. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With ASTM A681 D4:
GB/T 1299 3Cr2W8V EN ISO 4957 1.2316 EN ISO 683-17 100Cr6 GOST 5950 3H2W8F GB/T 1299 4Cr5MoSiV1 DIN EN ISO 4957 1.2344 DIN EN ISO 4957 1.2379 IS 1570 (Part 6) 118T3 IS 1570 (Part 6) 133T3 GB/T 1299 4Cr5MoSiV GOST 5950 4H5MFS1 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
66.4%
MECHANICAL MATCH
100%
OVERALL
69.9%
Specifications
Property ASTM A681 D4 GB/T 1299 Cr12Mo1V1
Standard ASTM A681:2008 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 2.05-2.40 1.45–1.70
Mn (%) 0.10-0.60 ≤0.40
P (%) <=0.030 Not specified
S (%) <=0.030 Not specified
Si (%) 0.10-0.60 ≤0.40
Cr (%) 11.00-13.00 11.00–13.00
V (%) 0.15-1.00 0.15–0.30
Mo (%) 0.70-1.20 0.40–0.60
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 D4 GB/T 1299 Cr12Mo1V1
Hardness <=255 HB Not specified
Condition Annealed (maximum Brinell hardness) Not specified
Hardness HRC (hardened) Not specified 58–62
Hardness HB (annealed) Not specified ≤255
Typical Applications
ASTM A681 D4
Tools, dies and fixtures (clause 1.2)
GB/T 1299 Cr12Mo1V1
Precision blanking dies, thread rolling dies, cold forming
Key Differences
Can ASTM A681 D4 Be Substituted With GB/T 1299 Cr12Mo1V1?
ASTM A681 D4 and GB/T 1299 Cr12Mo1V1 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 D4
No active listings currently.
GB/T 1299 Cr12Mo1V1
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3100–3200 mm (122.05–125.98 in)
On M-EX Right Now
ASTM A681 D4
0 active listings and RFQs →
GB/T 1299 Cr12Mo1V1
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A681 D4 and GB/T 1299 Cr12Mo1V1?
ASTM A681 D4 specifies P, S which are not specified for GB/T 1299 Cr12Mo1V1.
Can ASTM A681 D4 be substituted with GB/T 1299 Cr12Mo1V1?
ASTM A681 D4 and GB/T 1299 Cr12Mo1V1 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.