Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
ASTM A681 S4 (ASTM A681:2008) and DIN EN ISO 4957 1.2344 (DIN EN ISO 4957:2018-11) are both steel grades.
Both fall under the Tool & Die Steels category.
ASTM A681 S4 is typically used for tools, dies and fixtures (clause 1.2), while DIN EN ISO 4957 1.2344 is commonly used for die casting dies, extrusion dies, forging dies, hot shear blades, mandrels, pressure die casting tooling.
ASTM A681 S4 is defined under ASTM International, originating from United States, while DIN EN ISO 4957 1.2344 is defined under European Standard (EN), originating from Europe.
As per chemical composition, ASTM A681 S4 vs DIN EN ISO 4957 1.2344 is a 57.3% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 35%.
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 S4
DIN EN ISO 4957 1.2344
Hardness
<=229 HB
Not specified
Condition
Annealed (maximum Brinell hardness)
Not specified
Hardness (annealed)
Not specified
≤229 HB
Hardness (hardened)
Not specified
44–52 HRC
Tensile Strength
Not specified
1200–1600 MPa
Elongation
Not specified
≥8%
Typical Applications
ASTM A681 S4
Tools, dies and fixtures (clause 1.2)
DIN EN ISO 4957 1.2344
Die casting dies, extrusion dies, forging dies, hot shear blades, mandrels, pressure die casting tooling
Key Differences
DIN EN ISO 4957 1.2344 specifies Mo which is not specified for ASTM A681 S4.
Can ASTM A681 S4 Be Substituted With DIN EN ISO 4957 1.2344?
ASTM A681 S4 and DIN EN ISO 4957 1.2344 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 S4 and DIN EN ISO 4957 1.2344?
DIN EN ISO 4957 1.2344 specifies Mo which is not specified for ASTM A681 S4.
Can ASTM A681 S4 be substituted with DIN EN ISO 4957 1.2344?
ASTM A681 S4 and DIN EN ISO 4957 1.2344 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.