5052 5182 Aluminum Coil Sheet for Cans Lids
5052 and 5182 aluminum coil sheets for can lids are dedicated aluminum-magnesium non-heat-treatable reinforced aluminum alloys, which are the core fundamental materials for manufacturing aluminum can lids and pull tabs in the metal packaging industry. They directly determine the sealing and fresh-keeping performance, user experience during opening and food contact safety of packaging products. Since their launch, these two alloys have been widely applied in the global beverage and food packaging fields.
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Overview
5052 and 5182 are non-heat-treatable Al-Mg anti-rust aluminum alloys, manufactured into special can-end coils and sheets via high-precision cold rolling, precision slitting and food-grade coating. They serve as core raw materials for beverage and food can lids as well as pull tabs. 5052 features moderate magnesium content and balanced ductility, mainly applied to non-pressurized food and fruit juice can ends. 5182 contains higher magnesium content with sharply enhanced strength after cold working, offering excellent pressure and burst resistance for carbonated drinks, beer and other pressurized beverage easy-open lids.
Specification
Alloy: 5052, 5182
Temper: H19, H48, etc
Thickness: 0.22-0.50mm
Width: 600-1600mm
ID: 305, 405, 505
Feature
Long-term corrosion resistance: Al-Mg oxide film isolates organic acid and moisture from drinks, avoiding dark oxidation and maintaining stable sealing during long storage.
Moderate strength: the moderate strength of 5052 and 5182 alloys allows the tops to withstand the pressure of canning and prevents deformation during the canning process. They meet the strength requirements for beverage can lids, especially when a balance of moderate strength and high corrosion resistance is needed.
Superior forming & riveting performance: Moderate elongation enables stable deep drawing, bending and firm pull-tab riveting without delamination or cracks.
Premium surface quality: Free of roll marks, oil stains and scratches; They feature a flat and smooth surface, making them suitable for applications with high flatness and appearance requirements.
Food-safe coating: Special internal & external food-grade paint withstands boiling and acid erosion with no toxic substance precipitation, complying with food contact regulations.
100% recyclable: Scrap lits and trimming waste can be fully remelted, meeting low-carbon green packaging standards.
Application
The 5052 and 5182 dedicated aluminum coil sheets for can lids are core materials in the metal packaging industry. 5052 alloy is mainly used for ordinary non-pressurized beverage lids and food sealing can lids, fitting conventional food packaging scenarios. 5182 alloy is specially applied to pull tabs and pressure-resistant easy-open lids for gas-containing drinks such as carbonated beverages and beer.
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