Material Science Reference

DIE CASTING ALLOY SPECIFICATIONS & MATRIX

Engineering guide comparing tensile strength, fluidity, thermal conductivity, and corrosion resistance across certified aluminum and zinc die casting alloys.

Mechanical & Physical Properties Comparison

Certified ASTM B85 & JIS H5302 mechanical test standards

Alloy Designation	Base Type	Tensile Strength	Yield Strength	Thermal Conductivity	Density	Primary Advantage	Action
Aluminum A380 A380.0	Aluminum	325 MPa (47 ksi)	160 MPa (23 ksi)	96.2 W/m·K	2.76 g/cm³	Excellent fluidity, superior pressure tightness, high streng...	Quote Aluminum A380
Aluminum ADC12 (A383) ADC12 / A383	Aluminum	310 MPa (45 ksi)	150 MPa (22 ksi)	96 W/m·K	2.74 g/cm³	Enhanced die-filling capability for thin-walled complex geom...	Quote Aluminum ADC12 (A383)
Aluminum A360 A360.0	Aluminum	315 MPa (46 ksi)	170 MPa (25 ksi)	113 W/m·K	2.64 g/cm³	Higher corrosion resistance, superior ductility, higher impa...	Quote Aluminum A360
Zinc Zamak 3 (AG40A) Zamak 3 / Z33520	Zinc	283 MPa (41 ksi)	207 MPa (30 ksi)	113 W/m·K	6.60 g/cm³	Industry standard for zinc die casting, exceptional dimensio...	Quote Zinc Zamak 3 (AG40A)
Zinc Zamak 5 (AC41A) Zamak 5 / Z35531	Zinc	331 MPa (48 ksi)	250 MPa (36 ksi)	109 W/m·K	6.70 g/cm³	Higher tensile strength and hardness than Zamak 3, superior...	Quote Zinc Zamak 5 (AC41A)

Aluminum Die Casting Alloys

Lightweight structural performance & superior thermal dissipation

Aluminum A380

A380.0

Excellent fluidity, superior pressure tightness, high strength at elevated temperatures, optimal cost-to-performance ratio.

Nominal Composition: Al-8.5Si-3.5Cu-1.3Fe-3.0Zn

Typical Applications: Automotive engine brackets, electronic enclosures, power tool housings, lawn mower decks, transmission covers.

Aluminum ADC12 (A383)

ADC12 / A383

Enhanced die-filling capability for thin-walled complex geometries, improved resistance to hot cracking, excellent machinability.

Nominal Composition: Al-10.5Si-2.5Cu-1.3Fe-1.0Zn

Typical Applications: Thin-wall heatsinks, complex electronic chassis, automotive oil pans, valve body assemblies, pump housings.

Aluminum A360

A360.0

Higher corrosion resistance, superior ductility, higher impact strength, excellent pressure tightness.

Nominal Composition: Al-9.5Si-0.5Mg-1.3Fe-0.6Cu

Typical Applications: Marine hardware, outdoor lighting fixtures, high-pressure fluid valves, chemical equipment components.

Zinc Die Casting Alloys

High impact strength, net-shape micro tolerance & chrome platability

Zinc Zamak 3 (AG40A)

Zamak 3 / Z33520

Industry standard for zinc die casting, exceptional dimensional stability, outstanding plating/coatability, tight tolerance capability.

Nominal Composition: Zn-4.0Al-0.03Mg-0.10Cu-0.07Fe

Typical Applications: Precision gears, door handles, lock components, automotive emblem mounts, optical equipment frames.

Zinc Zamak 5 (AC41A)

Zamak 5 / Z35531

Higher tensile strength and hardness than Zamak 3, superior creep resistance, slightly reduced ductility.

Nominal Composition: Zn-4.0Al-1.0Cu-0.04Mg-0.07Fe

Typical Applications: High-stress mechanical fasteners, hydraulic valve rotors, automotive seat belt mechanisms, heavy-duty hinges.