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Perforated tube has a strong resistance to corrosion due to an oxide skin formed in reaction with the atmosphere. It is a relatively light metal pipe compared to metals such as steel, nickel, brass, and copper and is rather malleable.

Instruction

1. Perforated tube can have a wide variety of surface finishes and is highly reflective to heat and light. For most applications, perforated sheets and tubes need no protective coating but are often anodized to improve color and strength.

2. Perforated tube is extremely useful at low-temperatures. At subzero temperatures its strength increases while retaining ductility. At temperatures over 400F aluminum alloy sheets tend to lose some of their strength.

3. To prevent the dull appearance that results from the oxidation of the outer layer, perforated tube can be either clear or color anodized after perforating. 

4. Unlike paint or powder coating, anodize film is built from the perforated tubes take on a translucent appearance. The alloys listed below are categorized into two types, non-heat-treatable and heat-treatable.

5. This commercially pure, low-strength alloy has excellent corrosion resistance and satisfactory anodizing and coating finishes. Perforated tube is unmatched by any other commercial aluminum alloy in workability.

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