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Materials
Non-ferrous alloys such as aluminium, magnesium, zinc, brass and copper alloys
are best for die casting.
Tolerances
Die Casting tolerance is based not only on the material used, but also the length,
shape and location of each feature. Die casting tolerance is usually in the range
of CT4 ~ CT6.
Die casting vs Permanent mold gravity casting
Normal dimension Linear dimensional tolerances Normal dimension Linear dimensional tolerances
(mm) (ISO8062) (mm) (ISO8062)
ʼ ≤ CT4 CT5 CT6 ʼ ≤ CT7 CT8 CT9
10 0.26 0.36 0.52 10 0.74 1 1.5
16 0.28 0.38 0.54 16 0.78 1.1 1.6
25 0.3 0.42 0.58 25 0.82 1.2 1.7
40 0.32 0.46 0.64 40 0.9 1.3 1.8
63 0.36 0.5 0.7 63 1 1.4 2
100 0.4 0.56 0.78 100 1.1 1.6 2.2
160 0.44 0.62 0.88 160 1.2 1.8 2.5
250 0.5 0.7 1 250 1.4 2 2.8
400 0.56 0.78 1.1 400 1.6 2.2 3.2
630 0.64 0.9 1.2 630 1.8 2.6 3.6
1000 1 1.4 1000 2 2.8 4
1600 1.6 1600 2.2 3.2 4.6
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