Kaye Presteign Ltd. Pressure die casting in Aluminium and Zinc. Quality assured to TS 16949 and QS 9001:2000

Zinc Alloys.

  ZA2 ZA3 ZA5 ZA8 ACuZinc
CEN Specification
Alloy Symbol ZnAl4Cu3-P Zn Al4-P ZnAl4Cu1-P ZnAl8Cu1-P  
Alloy Number ZP0430 ZP0400 ZP0410 ZP0810  
CEN Short ZP2 ZP3 ZP5 ZP8  
Designation Colour White/Green White/Yellow White/Black White/Blue  
Chemical Composition
Aluminium 3.7 - 4.3 3.7 - 4.3 3.7 - 4.3 8.0 - 8.8 2.8 - 3.3
Copper 2.7 - 3.3 0.1 Max 0.7 - 1.2 0.8 - 1.3 5.0 - 6.0
Magnesium 0.025 - 0.06 0.025 - 0.06 0.025 - 0.06 0.015 - 0.03 0.025 - 0.05
Iron 0.05 Max 0.05 Max 0.05 Max 0.06 Max 0.075 Max
Silicon 0.03 Max 0.03 Max 0.03 Max 0.045 Max -
Nickel 0.02 Max 0.02 Max 0.02 Max 0.02 Max -
Lead 0.005  Max 0.005  Max 0.005  Max 0.006  Max 0.005  Max
Cadmium 0.005  Max 0.005  Max 0.005  Max 0.006  Max 0.004  Max
Tin 0.002  Max 0.002  Max 0.002  Max 0.003  Max 0.003  Max
Zinc Remainder Remainder Remainder Remainder Remainder
Physical Properties
Melting Range Deg' C 379 - 388 381 - 387 380 - 386 375 - 404 402 - 502
Density g/cm3 6.7 6.7 6.7 6.3 6.85
Coef Thermal expansion 27.4 27.4 27.4 23.3 24
Thermal Conductivity W/m C 105 113 109 115 106
Electrical Conductivity 25 27 26 27.7 26.9
Mechanical  Properties
Tensile Strength 359 283 328 374 407
Yield Strength (0.2%) 270 221 228 290 338
Impact Strength 47 58 65 42 -
Elongation % 7 10 7 8 6
Shear Strength MPa 315 214 262 276 280
Brinell Hardness (500Kg) Up To 100 Up To 82 Up To 91 Up To 103 Up To 118
Fatigue 5x108 cycles MPa 58 48 56 103  
Young's Modulus MPa >85,500 >85,500 >85,500 >85,500  
Poisson's Ratio 0.27 0.27 0.27 0.29 - 0.30  
Shear Modulus MPa 34,000 34,000 34,000 34,000  

 

 

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