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Aluminum 360 | Aluminum 380 | Aluminum 413 | Aluminum Alloys | Alloys

Die Casting Alloys
Technical Information

Aluminum Die Casting Description: Molten Aluminum Metals (aluminum die casting alloys) are injected, under pressure, into hardened steel die casting dies, often water-cooled. The die casting dies are opened, and aluminum die castings are ejected. Many times thousands of aluminum die casting parts each day are produced.

    Die Casting Alloys (Technical Information):
  • Aluminum 360, aluminum alloy (A360 Die Casting Alloy)
  • Aluminum 380, aluminum alloy (A380 Die Casting Alloy)
  • Aluminum 383, aluminum alloy (A383 Die Casting Alloy)
  • Aluminum 413, aluminum alloy (A413 Die Casting Alloy)
  • Zinc (Zamak) die casting alloys (#3 and #5)
  • ZA (Zinc-Aluminum) die casting alloys (ZA8, ZA12 and ZA27)

    Size Range: Not normally over 2 feet square.

    Die Casting Alloy Tolerances:
  • Aluminum Alloy Die Casting Part ± .002"/in
  • Zinc Alloy Die Casting Part ± .0015"/in
  • Add ± .001" to ±.015" across parting line depending on size

    Die Casting Part Surface Finish: 32-63RMS

    Minimum Die Casting Part Draft Requirements:
  • Aluminum & Mag 1° to 3°
  • Zinc 1/2° to 2°

    Normal Die Casting Part Minimum Section Thickness:
  • Aluminum: .06" Small Parts; .09" Medium Parts
  • Zinc: .03" Small Parts; .06" Medium Parts

    Ordering Quantities: Usually 1,000 and up

    Normal Lead Time:
  • Samples: 2 to 4 weeks
  • Production: Starts usually within two weeks after approval

    The following table will provide a general idea of the technical differences of:
  • Aluminum Die Casting Alloys (360, 380, 383 & 413),
  • Zinc-Aluminum Die Casting Alloys (ZA8, ZA12 & ZA28)
  • Zinc Die Casting Alloys (#3 & #5):

Aluminum Die Casting Alloys Technical Information
Die Casting Metals Comparison
(1= most desirable, 5= least desirable)

 
360
380
383
413
ZA-8
ZA-12
ZA-27
#3
#5
Hardness
75
80
75
80
100
95
116
82
91
Shear Strength (ksi)
28
28
-
25
40
43
47
31
33
Tensile Yield Strength (ksi)
25
23
22
21
37
39
52
32
39
Ultimate Tensil Strength (ksi)
44
46
45
43
56
60
64
41
48
Thermal Conductivity
65
56
56
70
66
67
72
65
63
Electrical Conductivity (% cu.)
30
27
23
31
28
23
30
27
26
Density (lb./in.3)
.1
.1
.1
.1
.23
.22
.18
.24
.24
Pressure Tightness
2
2
2
1
3
3
4
1
2
Die Filling Capacity
3
2
1
1
2
3
3
1
1
Anti-Soldering to Die
2
1
2
1
-
-
-
-
-
Corrosion Resistance
2
4
3
2
2
2
1
3
3
Machining ease & quality
3
3
2
4
2
3
4
1
1
Strength at high temps
1
3
2
3
-
-
-
-
-

Zinc #3 Alloy weighs 2.44 times more than aluminum alloys, the ZA-8 alloy weighs 2.3 times more than aluminum alloys, and the ZA-27 alloy weighs 1.84 times more than aluminum alloys and the greater weight will effect the overall die casting part cost.



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