Quantcast Cast Aluminum Attributes - mo9130102

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Installation.  If not self supporting, it is screwed or
o
bolted to structural frame.  Joint details are important
because of galvanic corrosion problems when the cast
aluminum comes in contact with dissimilar metals.
o
Advantages.
Lightweight (1/2 that of cast iron);
Corrosion resistant;
Non-combustible;
Intricate castings possible;
Easy assembly;
Good delivery time;
Can be prepared for painting in variety of colors;
Long life;
Durable;
Less brittle than cast iron.
o
Disadvantages.
Lower structural strength than cast iron;
Difficult to prevent galvanic corrosion with other
metals;
Greater expansion and contraction than cast iron;
Needs gaskets or caulked joints;
Hard to keep painted.
o
Checklist.
Can existing materials be repaired or replaced in-
kind?
How is cast aluminum to be attached?
Have full-size details been developed for each piece
to be cast?
How are expansion joints detailed?
Will there be a galvanic corrosion problem?
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