Aluminum alloy used as a starting material in the production of guttering outlet bends, swan-neck bends, etc. comprises silicon, iron, copper, manganese, magnesium, chromium, zinc, aluminum and random impurities

摘要

Aluminum alloy is used as a starting material in the production of guttering outlet bends, swan-neck bends, etc. from a pipe material having only one longitudinal welding seam and comprises 0.08-0.6 % Si, 0.10-0.7 % Fe, 0.05-0.30 % Cu, 0.05-1.5 % Mn, 0.05-1.5 % Mg, 0.10-0.20% Cr, 0.05-0.40% Zn, with the balance of Al and random impurities. Preferred Features: The aluminum alloy comprises 0.30% Si, 0.7% Fe, 0.20% Cu, 0.50-1.10% Mg, 0.10% Cr, 0.25% Zn, with the balance of Al and random impurities, or 0.30% Si, 0.45% Fe, 0.05% Cu, 0.15% Mn, 0.7-1.1% Mg, 0.10% Cr, with the balance of Al and random impurities.