Metal Strip

Metal strip is narrow, thin stock that is usually 3/16 in. (4.76 mm) or less in thickness and under 24 in. (609.6 mm) in width. Metal strips are formed to precise thicknesses and/or width requirements. Hardness or surface finish properties are controlled by the rolling process, which is usually unidirectional. The cost of metal strip depends upon production and compositional requirements. For example, a stockstrip that requires additional rolling may be less expensive than strip stock that must be mixed and cast before rolling. Costs also vary based on the price of materials.

Metal strip is produced through a combination of powder metallurgy, casting, rolling, and stamping processes. Alloys are selected for the characteristics that they can impart. After an alloy is formed, the metal is drawn through a die and cast into a strip or rod of variable thickness. The metal strip is then cooled and put through a rolling mill in order to fabricate the finished product. Rolling mills are designed to precision-roll ferrous, non-ferrous, and alloys into custom-sized metal strip. Unidirectional rolling combines heat and pressure to produce specific thickness and tensile properties. Cold working or cold-press rolling is controlled by a programmable interface in order to fabricate metal strip to fine accuracies. Metal strip can be rolled a number of times in order to produce stockstrip with the desired thickness.

Suppliers of metal strip are located across the United States and around the world. They adhere to a variety of quality standards and produce stock strip for many applications. High-purity nickel strip is used in rechargeable batteries and electronic devices. Nickel-iron strip is used in cathode ray tubes (CRT) and resistors. Cobalt strip is used with welding wire. Spinodal copper strip can be used in bearings and connectors. Iron aluminide metal strip is designed for high-temperature applications.

Metal strip conforms to standards from organizations such as the American Iron and Steel Institute (AISI), the Society of Automotive Engineers (SAE), the American Society for Testing and Materials (ASTM), and the Copper Development Association (CDA). Products are classified according to the International Alloy Designation System (IADS), Japanese Industrial Standards (JIS), and/or the Unified Numbering System. Metal strip that adheres to U.S. military specifications (MIL-SPEC) and European Norm (EN) specifications is also available.

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Part Numbers for Metal Strip