Aluminum Strip for Ductwork
The primary alloys and components of aluminum strip for ductwork are 1100, 1200, 8011, 3102, etc. Whether it is made of hot-rolled billets or cast-rolled billets, the primary alloy components should be meet the requirements of GB 3190-2008. However, at the time of production, the actual control composition scale of different aluminum strip manufacturers is different. The control scale of its chemical composition is mainly to consider the product's tensile strength, elongation and cupping value and other technical indicators to satisfy the user's request. The surface of the aluminum strip for ductwork should be flat and clean, and no defects such as corrosion, holes, creasing, brown oil spots, and open seams are allowed to affect the application. The temper of aluminum strip for air duct is O soft, the water-washing test on the surface should not be lower than Grade B. At present, the application thickness of air duct aluminum strip is usually 0.10-0.12...