7050 aluminum tube overview
The
7050 aluminum tube is a high-strength heat treatable alloy with extremely high strength and resistance to spalling and stress corrosion cracking. Commonly used in aircraft structural parts for medium and heavy plate extrusions, free forgings and die forgings. The requirements for the manufacture of such parts are: resistance to flaking corrosion and stress corrosion cracking, fracture toughness and fatigue resistance.
7050 aluminum tube chemical composition
Zinc (Zn) 5.7~6.7
Silicon (Si) ≤ 0.12
Iron (Fe) 0.000~0.150
Manganese (Mn) ≤ 0.10
Magnesium (Mg) 1.9~2.6
Titanium (Ti) ≤ 0.06
Copper (Cu) 2.0~2.6
7050 aluminum tube mechanical properties
State Tensile strength Yield strength Elongation Hardness (a) Shear strength Fatigue strength (b)
MPa ksi MPa ksi sample thickness
1.6mm (1/16in) HB MPa ksi MPa ksi
T73510 496 72 434 63 12 135 - - 71 10.4
T7451 524 76 469 68 11 135 303 44 71 10.4
T7651 552 80 490 71 11 135 324 47 71 10.4
7050 aluminum tube other properties
Density: 2.83 g/cm3 (0.102 lb/in3) at 20 ° C (68 ° F).
Annealing temperature 415 ° C (775 ° F)
Solution temperature 475 ° C (890 ° F)
Aging temperature 120-175 ° C (250-350 ° F)
