AZ31

AZ91

ZK60

AM20

WE43

Costs

CAD$3.24/kg

CAD$3.52/kg

CAD$9.16/kg

CAD$4.30/kg

CAD$3.42/kg

Other

Characteristics

Good forgeability, medium strength, can be hammer forged, seldom used

Excellent castability, good strength

Good forgeability,

good strength, good ductility

High ductility and impact strength

Fine grained and pressure tight with good casting characteristics

Typical Applications

Forgings and extruded bar, rod, shapes, structural sections, and tubing with moderate mechanical properties and high elongations

Usually used for die-casting

Extruded products and press forgings, with high strength and ductility

High mechanical properties, problem with hot shortness, cracking, not good for sand/permanent mould castings, not weldable, has long fatigue life

More costly than AZ series, zirconium is a strong grain refiner, it precipitates iron contaminates from alloy before casting

More than 2.7% to 3% Zn, lose corrosion resistance, hot tearing is not a problem in HPDC

Usually used for die casting

Forgings and extruded bars, excellent retention of properties at elevated temperatures and good corrosion resistance