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ASTM A681 H11 vs GB/T 1299 4Cr5MoSiV1

Strong Match — 90.3% match based on chemical composition and mechanical property overlap.

ASTM A681 H11 (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 H11 is typically used for die casting dies, extrusion tooling, forging dies, while GB/T 1299 4Cr5MoSiV1 is commonly used for die casting dies, forging dies, extrusion tools. ASTM A681 H11 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 H11 vs GB/T 1299 4Cr5MoSiV1 is a 85.5% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 90.3%.

Frequently Compared With ASTM A681 H11:
GB/T 1299 4Cr5MoSiV DIN EN ISO 4957 1.2344 GOST 5950 4H5MFS GOST 5950 4H5MFS1 AISI 52100 GOST 5950 3H2W8F EN ISO 4957 1.2316 DIN EN ISO 4957 1.2379 EN ISO 683-17 100Cr6 GB/T 1299 3Cr2W8V IS 1570 (Part 6) 103T3 IS 1570 (Part 6) 118T3
Match Breakdown
CHEMISTRY MATCH
85.5%
MECHANICAL MATCH
100%
OVERALL
90.3%
Specifications
Property ASTM A681 H11 GB/T 1299 4Cr5MoSiV1
Standard ASTM A681:2008 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 0.33-0.43 0.32–0.45
Mn (%) 0.20-0.60 0.20–0.50
P (%) <=0.030 Not specified
S (%) <=0.030 Not specified
Si (%) 0.80-1.25 0.80–1.20
Cr (%) 4.75-5.50 4.75–5.50
V (%) 0.30-0.60 0.80–1.20
Mo (%) 1.10-1.60 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 H11 GB/T 1299 4Cr5MoSiV1
Hardness <=235 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 H11
Die casting dies, extrusion tooling, forging dies
GB/T 1299 4Cr5MoSiV1
Die casting dies, forging dies, extrusion tools
Key Differences
Can ASTM A681 H11 Be Substituted With GB/T 1299 4Cr5MoSiV1?
ASTM A681 H11 and GB/T 1299 4Cr5MoSiV1 overlap closely enough on chemistry and mechanical properties that GB/T 1299 4Cr5MoSiV1 is often considered as a substitute for ASTM A681 H11 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
ASTM A681 H11
Flat Bar → (3 listings)
Thickness: 40–40 mm (1.57–1.57 in)
Width: 180–180 mm (7.09–7.09 in)
Length: 2500–4000 mm (98.43–157.48 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 H11
3 active listings and RFQs →
GB/T 1299 4Cr5MoSiV1
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A681 H11 and GB/T 1299 4Cr5MoSiV1?
ASTM A681 H11 specifies P, S which are not specified for GB/T 1299 4Cr5MoSiV1.
Can ASTM A681 H11 be substituted with GB/T 1299 4Cr5MoSiV1?
ASTM A681 H11 and GB/T 1299 4Cr5MoSiV1 overlap closely enough on chemistry and mechanical properties that GB/T 1299 4Cr5MoSiV1 is often considered as a substitute for ASTM A681 H11 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.