Minimal Match — 54.5% match
based on chemical composition and mechanical property overlap.
ASTM Zamak 3 and ASTM Zamak 2 are both zinc grades.
Both fall under the Zinc Alloys category.
ASTM Zamak 3 is defined under ASTM International, originating from United States, while ASTM Zamak 2 is defined under ASTM International, originating from United States.
As per chemical composition, ASTM Zamak 3 vs ASTM Zamak 2 is a 81.8% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 54.5%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
ASTM Zamak 3
ASTM Zamak 2
Yield Strength
~210-225 MPa (as die cast)
~360-400 MPa (as die cast)
Tensile Strength
~280-285 MPa (as die cast)
~390-410 MPa (as die cast)
Elongation
~9-12% (as die cast)
~3-6% (as die cast)
Note
Zamak 3, standard general-purpose zinc die-casting alloy
Zamak 2, high-copper zinc die-casting alloy
Can ASTM Zamak 3 Be Substituted With ASTM Zamak 2?
ASTM Zamak 3 and ASTM Zamak 2 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 Zamak 3 and ASTM Zamak 2?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can ASTM Zamak 3 be substituted with ASTM Zamak 2?
ASTM Zamak 3 and ASTM Zamak 2 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.