We have built off our experience and relationships in the flat rolled steel market to be able to now offer aluminum coil. Like with steel, our focus is on the light gauge market.
Cold rolled aluminum coil can offer a wide variety of characteristics which lend themselves to many different end uses. We specialize in niche end markets and specialty engineered products. We offer supply from global mills with unique production capabilities, and offer customized supply chains to meet your needs.
Our business to date has primarily been with 3000, 6000, 7000 and 8000 series, used in construction, automotive, and specialty beverage. With our mill partners, we have helped design novel products with superior metallurgical properties.
3000 series aluminum is alloyed with manganese. The alloys of this series are high strength, but are not heat treatable and are not suitable for anodizing or welding. 3000 series aluminum alloys also exhibit moderate resistance to chemical agents, atmospheric agents and offer higher mechanical properties and better formability than pure aluminum.
One of the first uses of these alloys was pots and pans, and they are a major component today for heat exchangers in vehicles and power plants. The moderate strength, however, often precludes their consideration for structural applications.
6000 series aluminum has magnesium and silicon as the major alloying elements. The alloys in this series have moderate strength alloys which is achieved by either heat treating or cold working. For a heat treatable grade, this series has excellent spot and fusing weldability and can be furnace brazed. It can be easily anodized.
These alloys are found widely throughout the welding fabrication industry, used predominantly in the form of extrusions, and incorporated in many structural components. The existence of magnesium-silicide allows these alloys to be solution heat treated for improved strength. These alloys are naturally solidification crack sensitive, and for this reason, they should not be arc welded autogenously.
7000 series aluminum has zinc as the primary alloying element. The alloys of this series have highest strength of all the series. Zinc is the primary alloying addition. These alloys have excellent fatigue properties. In some conditions, fracture toughness can be inferior to other alloys. If corrosion is a concern, these alloys should be anodized, primed, painted or protected with some type of chemical film.
These alloys are often used in high performance applications such as aircraft, aerospace, and competitive sporting equipment. This series incorporates alloys which are considered unsuitable candidates for arc welding, and others, which are often arc welded successfully.
8000 series aluminum has a range of alloying elements. Usually, this series offers a combination of properties similar to 1000 series alloys but with higher strength, better formability, and improved stiffness. 8000 series alloys are normally suitable for thinner gauge applications.
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