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It is a high-strength heat-treatable alloy with ordinary corrosion resistance and good mechanical properties.

Specifications: Thickness 1-300mm Width: 1200-1600mm Length: 3670

Typical use

Aircraft body structural parts, mobile equipment and other high-stress components that require high strength and strong corrosion resistance.

Chemical composition range

1.20-2.0Cu, 2.1-2.9Mg, 0.30Mn, 0.40Si, 0.50Femax, 0.18-0.28Cr, 5.1-6.1Zn, 0.20Timax, the maximum content of each other component is 0.05, the maximum total content of other components is 0.15, the balance is Al.

Typical mechanical properties

State

Tensile Strength

Yield Strength

Elongation (a)

Hardness (b)

Shear strength

Fatigue strength (c)

MPa

ksi

MPa

ksi

%

HB

MPa

ksi

MPa

ksi

O

228

33

103

15

17

60

152

22

--

--

T6,T651

572

83

503

73

11

150

331

48

159

23

T73,T7351

503

73

434

63

--

150

--

--

159

23

Physical properties

State

Thermal conductivity

Conductivity

Resistivity

W/(m·K)

%IACS

nΩ·m

T6,T651

130

33

52.2

T73,T7351

155

40

43.1