2022-11-08 https://www.aluminum-coils.com/a/7050-t7451-aviation-aluminum-plate.html
7050 T7451 aviation aluminum plate sheet is a high strength heat treatable alloy with 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.
Mechanical behavior
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
Note: (a) Load 500kg diameter 10mm ball; (b) R.R.Moore type test, cycle 5*108 times full reverse stress.
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)
chemical composition
Aluminum (Al) balance
Chromium (Cr) ≤ 0.04
Zirconium (Zr) 0.08~0.15
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 to 2.6
