6070 belongs to the 6××× series (Al-Mg-Si) alloy aluminum plate.Same as 6061 alloy ,It is a heat-resistant and reinforced aluminum alloy plate with medium strength, good welding performance and corrosion resistance. It is mainly used in transportation and structural engineering industries. Such as bridges, cranes, roof structures, transport planes, transport ships, etc. In recent years, with the rapid development of the shipbuilding industry at home and abroad, reducing the weight of the hull, increasing the speed of the ship, and seeking aluminum alloy materials instead of steel parts have become an important issue for the aluminum processing industry and the shipbuilding industry. The 6070 aluminum alloy sheet has medium strength, good corrosion resistance and light weight, making it an ideal material for the manufacture of high speed marine components.
Chemical composition of 6070 high speed boat parts aluminum plate
 

 

Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Other		Alu
								each	Total
1.0-1.7	0.50	0.15-0.40	0.4-1.0	0.50-1.2	0.10	0.25	0.10	0.05	0.15	Remainder

 
6070 high speed boat parts aluminum plate Mechanical and physical properties
Tensile strength σb (MPa): ≥ 205
Conditional yield strength σ0.2 (MPa): ≥110
Elongation δ10 (%): ≥14
Note: Longitudinal mechanical properties of profiles at room temperature
Sample size: all thickness
Homogenization temperature: 555-565 ° C holding time: 3 hours, cooling rate ≥ 200 ° C