5052 aluminum alloy, which belongs to Al-Mg alloy, is widely used, especially in the construction industry, which is the most promising alloy. Good corrosion resistance, good weldability, good cold processing, and medium strength. The main alloy element 5052 Aluminum Alloy for magnesium, has good forming performance, corrosion resistance, weldability, medium strength, used for sheet metal parts of aircraft fuel tanks, tubing, and vehicle and vessel, street lamp and meter, rivets, metal products, electric device shell etc..
The forming performance
(1) the hot state of the alloy has good plasticity. The forging and forging temperature is 420~475 C, and the thermal deformation of the deformation rate >80% is carried out within this temperature range.
(2) the cold stamping performance is related to the state of the alloy. The cold stamping performance of the annealing (O) state is good, the state of H32 and H34 is the second, but the H36/H38 state is not good.
The welding performance
The alloy welding, arc welding, resistance welding, spot welding, seam welding performance is good, the crystallization tendency of two cracks in argon arc welding. The performance of brazing is good, but the performance of brazing is poor.
The strength and plasticity of the weld are high, and the strength of the weld is 90%~95% of the strength of the matrix metal. But the gas tightness of the weld is not high, it is recommended to use 5A03 alloy as the solder, which can improve its air tightness and eliminate the crack tendency.
Mechanical processing performance
The annealed state of the alloy is not good, but when the cold is hardened, the alloy improves.
Aluminum Al: allowance
Si: Si = 0.25
Copper: Cu = 0.10
Zinc: Zn = 0.10
Mn: Mn = 0.10
Chromium Cr:0.15 ~ 0.35
Iron: Fe = 0.40
Note: A: = 0.05; total: 0.15
Tensile strength of sigma B (MPa) 173~244
Conditional yield strength (MPa = 70) 0.2
Density 2.68 grams / cubic centimeter
Sample size: all wall thickness
Note: the longitudinal mechanical properties of pipes at room temperature