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ASTM A681 H11 vs BS 4659 BH11

Strong Match — 97.3% match based on chemical composition and mechanical property overlap.

ASTM A681 H11 (ASTM A681:2008) and BS 4659 BH11 (BS 4659:1989) 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 BS 4659 BH11 is commonly used for die casting dies, extrusion tooling. ASTM A681 H11 is defined under ASTM International, originating from United States, while BS 4659 BH11 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, ASTM A681 H11 vs BS 4659 BH11 is a 95.9% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 97.3%.

Frequently Compared With ASTM A681 H11:
GB/T 1299 4Cr5MoSiV1 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
Match Breakdown
CHEMISTRY MATCH
95.9%
MECHANICAL MATCH
100%
OVERALL
97.3%
Specifications
Property ASTM A681 H11 BS 4659 BH11
Standard ASTM A681:2008 BS 4659:1989
Category Tool & Die Steels Tool & Die Steels
C (%) 0.33-0.43 0.33–0.43
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 0.30–0.60
Mo (%) 1.10-1.60 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 ASTM A681 H11 BS 4659 BH11
Hardness <=235 HB Not specified
Condition Annealed (maximum Brinell hardness) Not specified
Hardness HRC (hardened) Not specified 40–54
Hardness HB (annealed) Not specified ≤235
Typical Applications
ASTM A681 H11
Die casting dies, extrusion tooling, forging dies
BS 4659 BH11
Die casting dies, extrusion tooling
Key Differences
Can ASTM A681 H11 Be Substituted With BS 4659 BH11?
ASTM A681 H11 and BS 4659 BH11 overlap closely enough on chemistry and mechanical properties that BS 4659 BH11 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)
BS 4659 BH11
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3500–3500 mm (137.8–137.8 in)
On M-EX Right Now
ASTM A681 H11
3 active listings and RFQs →
BS 4659 BH11
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between ASTM A681 H11 and BS 4659 BH11?
ASTM A681 H11 specifies P, S which are not specified for BS 4659 BH11.
Can ASTM A681 H11 be substituted with BS 4659 BH11?
ASTM A681 H11 and BS 4659 BH11 overlap closely enough on chemistry and mechanical properties that BS 4659 BH11 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.