Aluminum
In high purity form, aluminum is soft and ductile. Most commercial uses, however, require greater strength than pure aluminum affords. This is achieved in aluminum first by the addition of other elements to produce various alloys which singly or in combination impart strength to the metal. Further strengthening is possible by means which classify alloys roughly into two categories, non-heat treatable and heat treatable.

3000 Series:
Manganese is the major alloying element in this group which are generally non-heat treatable. because only a limited percentage of manganese, up to 1.5% can be effectively added to aluminum, it is used as a major element in only a few instances. One of these, however is the popular 3003, which is widely used as a general purpose alloy for moderate strength applications requiring good workability.

Standard Gauges:
.032 and .040 (Metal Specification: 30,000 psi typical yield strength. Alloy 3003/3004-H conforming to ASTM B-209)

Finishes:
#1- Alclad, Stucco Embossed or Smooth
#2- Kynar
#3- Siliconized Polyester

Aluminum 409 AZ:
Aluminum 409 is a Type 409 stainless steel sheet with a Type 2 aluminized hot dip coating. This material is specifically developed for high heat applications with an Oxidation resistance to 16000 F. Similar to other products James River Steel supplies, 409 AZ has a high resistance to corrosion. 409 AZ has many of the same characteristics as higher chrome or chrome-nickel stainless steel but the cost range is in between galvanized and stainless steel.