What are the methods for selecting high-quality aluminum bars

The thickness, strength and oxide film thickness of the plates selected according to the thickness and quality of aluminum bars should conform to the national specifications: aluminum plate thickness ≥ 1.2mm, tensile strength ≥ 157 N/mm2, yield strength ≥ 108 N/mm2, and oxide film thickness ≥ 10 microns. If it fails to meet the specification, it is inferior aluminum bar.

The speckled aluminum plates produced by large factories on the right track are processed with exquisite materials. The surface is bright, the stripes are clear and uniform, the aluminum plates are flat, and the appearance is free of oil stains, scratches, folds and other defects; The speckled aluminum plates produced by small factories use waste aluminum as materials. Their appearance is dull, the stripes are not clear and uniform, the surface is uneven, the performance is not up to standard, and the quality is poor.

According to the price, the speckled aluminum plate can be divided into pure aluminum and alloy, and the price is naturally different. The processing cost of the speckled aluminum plate produced by the manufacturer of the track is several thousand yuan per ton. The price of the alloy is higher than that of the pure aluminum. The price of the aluminum plate produced by the manufacturer of the track is about 20% - 30% higher than that of the low-quality aluminum plate. When purchasing, enterprises must not compare prices alone. If they buy unqualified products, it will be too late to regret.

Aluminum bar picture 4