As two types of commonly used sheets, the 5052 aluminum plate and the 7075 aluminum plate are different in not a few aspects.
Alloying elements
The alloying element of 5052 aluminum plate is magnesium, while that of 7075 alloy is zinc, in addition to a small amount of magnesium. The processing state is also different. The 7075 aluminum plate is generally in the T6 and T651 states, and 5052 O, H112, H24, and H32 states.
Properties and Application
The difference between the processing state and the alloying elements result in differences in properties. The 5052 aluminum plate has a good fatigue resistance and a high plasticity. It can not be heat treated or strengthened, and is hardened in semi-cold. The plasticity is low during cold work hardening, with the corrosion resistance good, the weldability good, the machinability poor, and the polishing possible. 7075 is one of the most powerful alloys in the industry, with a compact structure and strong corrosion resistance. The fine grain size makes the 7075 aluminum alloy deeper in drilling performance and the tool wear resistance is enhanced. Different uses, the 5052 aluminum plate is a rust-proof aluminum alloy, which is often used in environments with anti-rust requirements. 7075 is the best aviation and marine board. In particular 7075-T651 aluminum plate is especially of top grade, and is known as the best product in aluminum alloy. It has high strength and is far better than any mild steel. This alloy has good mechanical and anodic reaction. Representative applications include aerospace, mold processing, mechanical equipment, fixtures, and especially for the manufacture of aircraft structures and other high-stress structures that require high strength and corrosion resistance.
Mechanical Properties
5052 aluminum sheet
Tensile strength σb (MPa): ≤ 225
Elongation δ5 (%): ≥ 10
7075 aluminum plate
Tensile strength σb (MPa): ≥ 524Mpa
Yield strength σ0.2 (MPa): ≥ 455Mpa
Elongation δ5 (%): ≥6
The 5052 aluminum plate can be bent, and the 7075 aluminum plate is generally used for grinding tools because of its high hardness, both of which have good oxidation effects. The 7075 aluminum plate is much harder than the 5052, but the bending and plasticity of the 5052 is much stronger than that of the 7 series, so we have to treat the two differently in practical applications.