I  N  N  O  V  A  T  O  R  S    W  I  T  H    Z  I  N  C

M A Z A K  5

Z n A l 4 C u 1
EN1774 ZL0410, ASTM B86 (AC4 A), R301(ZnAl4Cu1)

Mazak 5 like Mazak 3 can be cast by the hot chamber diecasting process. Mazak 5 is preferred where its slightly higher tensile strength and hardness are desired or wherer maximum castability is required.

As cast dimentional stability is not quite as good as that of Mazak 3. Mazak 5 is easily machined and formed and can be readily finished by a variety of techniques including painting, powder coating and electroplating where required.

Mechanical Properties As-cast Aged
Tensile Strength (MPa) 328 269
Shear Strength (MPa) 262
Elongation (% in 51mm) 7 13
Hardness (Brinell - 500Kg) 91 80
Impact Strength (Energy, Joules) 65.1 54.2
Fatigue Strength 5 x 108 cycles (MPa) 56.5


Physical properties  
Density 6,700 Kg/m3 at 21°C
Solidification shrinkage 1.17%
Casting shrinkage 0.6% (pressure diecast)
Freezing range 379 - 388°C
Casting temperature 400 - 420°C
Specific heat capacity 418.7 J/Kg/°C at 20 - 100°C
Thermal expansion 27 x 10-6 linear per °C at 20 - 100°C
Thermal conductivity 108.9 W/m/hr/m2/°C at 70 - 140°C
Electrical conductivity 26% IACS
Electrical resistance 6.5359 u ohm cm at 20°C


TYPICAL ANALYSIS

Alloying elements  
Aluminum 3.8 - 4.2%
Copper 0.7 - 1.1%
Magnesium 0.035 - 0.06%
 
Impurities  
Iron < 0.02%
Lead < 0.003%
Cadmium < 0.003%
Tin < 0.001%
Nickel < 0.001%
Thallium < 0.02%
Indium < 0.0005%
Manganese < 0.01%