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ASTM Zamak 7 vs ASTM Zamak 3

Related Material — 62.9% match based on chemical composition and mechanical property overlap.

ASTM Zamak 7 and ASTM Zamak 3 are both zinc grades. Both fall under the Zinc Alloys category. ASTM Zamak 7 is defined under ASTM International, originating from United States, while ASTM Zamak 3 is defined under ASTM International, originating from United States.

As per chemical composition, ASTM Zamak 7 vs ASTM Zamak 3 is a 71.8% match. As per mechanical properties, the match is 45%. Combined, this makes them a related material overall at 62.9%.

Frequently Compared With ASTM Zamak 7:
ASTM Zamak 5 ASTM Zamak 2 ASTM ZA-27 ASTM ZA-12 ASTM SHG Zinc ASTM ZA-8
Match Breakdown
CHEMISTRY MATCH
71.8%
MECHANICAL MATCH
45%
OVERALL
62.9%
Specifications
Property ASTM Zamak 7 ASTM Zamak 3
Standard ASTM ASTM
Category Zinc Alloys Zinc Alloys
Al (%) 3.7-4.3 3.7-4.3
Mg (%) 0.005-0.020 0.02-0.06
Cu (%) 0-0.10 0-0.10
Fe (%) 0-0.05 0-0.05
Pb (%) 0-0.003 0-0.005
Cd (%) 0-0.002 0-0.004
Sn (%) 0-0.001 0-0.002
Ni (%) 0.005-0.020 Not specified
Zn (%) remainder remainder
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 7 ASTM Zamak 3
Yield Strength ~200-225 MPa (as die cast) ~210-225 MPa (as die cast)
Tensile Strength ~280-300 MPa (as die cast) ~280-285 MPa (as die cast)
Elongation ~10-13% (as die cast) ~9-12% (as die cast)
Note Zamak 7, high-ductility low-impurity zinc die-casting alloy Zamak 3, standard general-purpose zinc die-casting alloy
Key Differences
Can ASTM Zamak 7 Be Substituted With ASTM Zamak 3?
ASTM Zamak 7 and ASTM Zamak 3 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.
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Frequently Asked Questions
What is the difference between ASTM Zamak 7 and ASTM Zamak 3?
ASTM Zamak 7 specifies Ni which is not specified for ASTM Zamak 3.
Can ASTM Zamak 7 be substituted with ASTM Zamak 3?
ASTM Zamak 7 and ASTM Zamak 3 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.