1. The surface of Best 5052 aluminum plate is not allowed to have cracks, corrosion spots and nitrate traces.

2. The surface of the Best 5052 aluminum plate is allowed to have peeling, bubbles, rough surface and local mechanical damage whose depth does not exceed 8% of the nominal wall thickness of the defect site, but the maximum depth of the defect cannot exceed 0.5mm, and the total defect area does not exceed 8%. 5% of the total area of the board.

3. Allow the supplier to polish the profile longitudinally until the surface is smooth.

4. Other requirements: the demander and the supplier shall formulate them themselves.

5. The surface of Best 5052 aluminum plate is bright and free of scratches, and the machine-pressed plate has few particles.

The main alloying element of Best 5052 aluminum plate is magnesium, which has good formability, corrosion resistance, weldability, and moderate strength. It is used to manufacture aircraft fuel tanks, fuel pipes, and sheet metal parts for transportation vehicles and ships, instruments, and street lamp brackets. And rivets, hardware products, electrical enclosures, etc.