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M A Z A K  7 +


Mazak 7+ has a very desirable combination of mechanical and physical properties which, coupled with its ability to be a cast by hot chamber die-casting process, makes this a widely applicable alloy. It can be used for wide ranging applications including automotive engineering, builder`s hardware, locks, toys and giftware. Mazak 7+ is readily able to make a variety of surfacefinishes such as electroplating, powder coating, anodising, etc. for both decorative purposes and as extras protection for extra ordinarily severe corrosive environments. It is readily machined and good formability assists assembly and forming processes.

Mazak 7+ is available in standard ingot form, standard ingots are supplied on metal stools.

Mechanical Properties As-cast Aged
Tensile Strength (MPa) 283 241
Shear Strength (MPa) 241
Elongation (% in 51mm) 10 4
Hardness (Brinell - 500Kg) 82 72
Impact Strength (Energy, Joules) 43 33.7
Fatigue Strength 5 x 108 cycles (MPa) 46.9


Physical properties  
Density 6,700 Kg/m3 at 21°C
Solidification shrinkage 1.17%
Casting shrinkage 0.60% (pressure diecast)
Freezing range 381 - 384°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 113 W/m/hr/m2/°C at 70 - 140°C
Electrical conductivity 27% IACS
Electrical resistance 6.3694 u ohm cm at 20°C


TYPICAL ANALYSIS

Alloying elements  
Aluminum 4.5%
Magnesium 0.004%
 
Impurities  
Copper < 0.013%
Iron < 0.005%
Lead < 0.003%
Cadmium < 0.002%
Tin < 0.001%
Nickel < 0.001%
Silicon < 0.01%