Strong Match — 93% match
based on chemical composition and mechanical property overlap.
ASTM A681 H13 (ASTM A681:2008) and BS 4659 BH13 (BS 4659:1989) are both steel grades.
Both fall under the Tool & Die Steels category.
ASTM A681 H13 is typically used for die casting dies, extrusion dies, forging dies, hot stamping, while BS 4659 BH13 is commonly used for die casting dies, forging tools, extrusion dies.
ASTM A681 H13 is defined under ASTM International, originating from United States, while BS 4659 BH13 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, ASTM A681 H13 vs BS 4659 BH13 is a 89.5% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 93%.
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 H13
BS 4659 BH13
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 H13
Die casting dies, extrusion dies, forging dies, hot stamping
BS 4659 BH13
Die casting dies, forging tools, extrusion dies
Key Differences
ASTM A681 H13 specifies P, S which are not specified for BS 4659 BH13.
Can ASTM A681 H13 Be Substituted With BS 4659 BH13?
ASTM A681 H13 and BS 4659 BH13 overlap closely enough on chemistry and mechanical properties that BS 4659 BH13 is often considered as a substitute for ASTM A681 H13 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between ASTM A681 H13 and BS 4659 BH13?
ASTM A681 H13 specifies P, S which are not specified for BS 4659 BH13.
Can ASTM A681 H13 be substituted with BS 4659 BH13?
ASTM A681 H13 and BS 4659 BH13 overlap closely enough on chemistry and mechanical properties that BS 4659 BH13 is often considered as a substitute for ASTM A681 H13 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.