The alloying element of 2017 is copper, which is based on the previous 2nd-ranked alloy for industrial application. It has high strength and good cutting performance, but has poor corrosion resistance. Mainly used in rivets, general mechanical parts, aircraft, ships, traffic, building structure parts, transportation tool structure parts, propeller components and accessories.
Chemical Composition Limits wt%
Cu
Si
Fe
Mn
Mg
Zn
Cr
Ti
Pb.Bi
Al
3.5-4.5
0.2-0.8
0.70
0.4-1.0
0.4-0.8
0.25
0.10
0.15
/
margin
Typical Alloy 2017-T451 Mechanical and Physical Properties (Typical Mechanical & Physical Properties)
Weldability
Machinability
Corrosion resistance
Conductivity 20°C (68?)
(%IACS)
density
(20°C)(g/cm3)
better
well
difference
30-40
2.79
tensile strength
(25°C MPa)
Yield strength (25°C MPa)
hardness
500kg force 10mm ball
Elongation rate
1.6mm (1/16in) thickness
Large shear stress
MPa
425
275
105
20
260
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