Get to Know 5052 Aluminum Plate: Properties, Chemical Composition, and Application Areas

The 5052 aluminum plate is an AL-Mg alloy aluminum plate, in which magnesium is the main alloying element, and it is also a widely used anti-rust aluminum. This alloy has obvious advantages, and has the characteristics of high strength, fatigue resistance, strong plasticity and high corrosion resistance. However, it cannot be strengthened by heat treatment, nor can it be cold hardened, so it is suitable for semi-cold hardened. Because its plasticity is still good when it is semi-cold hardened, but its plasticity is low when it is cold hardened. Although it has good corrosion resistance and weldability, its machinability is poor. Relevant processing needs to be carried out according to the specific environment.

The 5052 aluminum plate contains a variety of elements, such as: aluminum, magnesium manganese, chromium, beryllium, titanium, etc. Among them, the role of chromium is similar to that of manganese, which can improve the resistance to stress corrosion cracking and the strength of the base metal and weld, and also reduce welding cracks tendency.

After a brief understanding of what 5052 aluminum sheet is, let’s see if 5052 aluminum sheet is suitable for oxidation?

The answer is yes, aluminum alloy oxidation is just an electrolytic process that deposits a chemically stable oxide layer on the aluminum surface. In order to obtain a new layer of oxide film, the strength will be stronger and thicker than the original one, and it can also avoid some sequelae such as paint falling off

The oxide film is graded, generally 5-25 microns, generally 5 microns are decorative oxidation, and the higher one can improve the strength of the 5052 aluminum plate. The anodized aluminum plate is also suitable for extrusion, casting, Rolling, forging, bending and other manufacturing processes.

Advantages and disadvantages of 5052 aluminum plate after anodized aluminum plate:

Strong texture, lower weight, scratch-resistant surface, generally difficult to scratch without a utility knife, stronger stain resistance, it will become very bright when wiped with water, anti-static, flame-retardant, and not easy to fade.

5052 aluminum plates are widely used in electrical appliances such as fuel tanks, sheet metal parts, instruments, street lamps, oil pipes, seats at bus stops, hardware products, and street lamps.

The chemical composition of 5052 aluminum plate:

Aluminum Al: Balance Silicon Si: 0.25

Copper Cu: 0.10 Magnesium Mg: 2.2～2.8

Zinc Zn: 0.10 Manganese Mn: 0.10

Chromium Cr: 0.15～0.30 Iron Fe: 0.40

Mechanical properties of 5052 aluminum plate:

Tensile strength σb (MPa) 170 ~ 305

Conditional yield strength σ0.2 (MPa) ≥ 70

Elastic modulus: E 69.3-70.7Gpa

Density: 0.00000272

The alloy state of 5052 aluminum sheet has O state, H32, H34, H36, H38 and other states.

1. Forming performance

①5052 aluminum sheet alloy has good plasticity in hot state process. During the process, its forging and die forging temperature is about 420~475°C, and 80% of thermal deformation can be carried out in this temperature range.

②The cold stamping performance of 5052 aluminum sheet alloy is related to the state of the alloy. The cold stamping performance in the annealed state is good, but it decreases in the H32 and H34 states, and the cold stamping performance in the H36/H38 state is not good.

2. Welding performance

① The resistance welding, gas welding, arc welding, spot welding, and seam welding performance of 5052 aluminum plate alloy is good, and there will be a tendency to crystallize cracks during two-argon arc welding, while the hard brazing performance is still good, and the soft brazing performance is poor, so pay attention Type of welding in case the required standard is not met.

②The strength and plasticity of the weld seam of 5052 aluminum plate are high, and the strength of the weld seam can reach about 90%~95% of the strength of the base metal, but the air tightness of the weld seam is not high. Generally, 5A03 alloy is recommended as the solder because it can improve air tightness properties and also eliminates the tendency to crack.

⑶ Machining performance

When the 5052 aluminum plate alloy is in the annealed state, the machinability is not good, but it will be improved in the cold work hardened state, so we must pay attention to the oxidation changes in different states.