Minimal Match — 27.4% match
based on chemical composition and mechanical property overlap.
ASTM A681 H23 (ASTM A681:2008) and EN ISO 4957 1.2316 (EN ISO 4957:2018) are both steel grades.
Both fall under the Tool & Die Steels category.
ASTM A681 H23 is typically used for tools, dies and fixtures (clause 1.2), while EN ISO 4957 1.2316 is commonly used for plastic injection moulds for corrosive materials, food packaging moulds.
ASTM A681 H23 is defined under ASTM International, originating from United States, while EN ISO 4957 1.2316 is defined under European Standard (EN), originating from Europe.
As per chemical composition, ASTM A681 H23 vs EN ISO 4957 1.2316 is a 41.1% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 27.4%.
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 H23
EN ISO 4957 1.2316
Hardness
<=255 HB
Not specified
Condition
Annealed (maximum Brinell hardness)
Not specified
Hardness HRC
Not specified
28–34 (pre-hardened)
Hardness HRC (hardened)
Not specified
38–44
Corrosion Resistance
Not specified
Good in humid/corrosive environments
Typical Applications
ASTM A681 H23
Tools, dies and fixtures (clause 1.2)
EN ISO 4957 1.2316
Plastic injection moulds for corrosive materials, food packaging moulds
Key Differences
ASTM A681 H23 specifies P, S, V, W which are not specified for EN ISO 4957 1.2316.
EN ISO 4957 1.2316 specifies Mo, Ni which are not specified for ASTM A681 H23.
Can ASTM A681 H23 Be Substituted With EN ISO 4957 1.2316?
ASTM A681 H23 and EN ISO 4957 1.2316 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.
What is the difference between ASTM A681 H23 and EN ISO 4957 1.2316?
ASTM A681 H23 specifies P, S, V, W which are not specified for EN ISO 4957 1.2316. EN ISO 4957 1.2316 specifies Mo, Ni which are not specified for ASTM A681 H23.
Can ASTM A681 H23 be substituted with EN ISO 4957 1.2316?
ASTM A681 H23 and EN ISO 4957 1.2316 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.