7075 T6 T62 T7351 aluminum alloy sheet plate7075 T6 T62 T7351
aluminum alloy sheet plate is currently the most widely used 7 * *
* aviation Aluminum Alloy, main supply varieties of aluminum or
aluminum, heat treatment condition of O, T6, T73, T76. The static
strength of T6 is the highest, the ductility is the lowest and the
fatigue is the worst. It is sensitive to stress corrosion cracking,
and toughness decreases with the decrease of temperature. So the T6
state is not applied to cryogenic working parts. T73 has the lowest
state strength, but has high fracture toughness and excellent
resistance to stress corrosion cracking and denudation. The
performance of T76 is between T6 and T73. Compared with T6 state,
it has low strength but good resistance to stress corrosion.
Compared with T73 state, its strength is high, but its stress
corrosion resistance is poor.
Chemical Composition of 7075
alloyAlloySiFeCuMnMgCrNiZnTiZr
OthersAlEachTotal70750.40 0.501.2~2.00.32.1~2.90.18~0.28~5.1~6.10.20~0.050.15Remainder
AlloyAlloy SeriesMain featuresσb Value/MPaWorking
Temperature/ºC70757075 series7075 T6 T62 T7351 aluminum alloy sheet
plate is currently the most widely used 7 * * * aviation Aluminum
Alloy, main supply varieties of aluminum or aluminum, heat
treatment condition of O, T6, T73, T76. The static strength of T6
is the highest, the ductility is the lowest and the fatigue is the
worst. It is sensitive to stress corrosion cracking, and toughness
decreases with the decrease of temperature. So the T6 state is not
applied to cryogenic working parts. T73 has the lowest state
strength, but has high fracture toughness and excellent resistance
to stress corrosion cracking and denudation. The performance of T76
is between T6 and T73. Compared with T6 state, it has low strength
but good resistance to stress corrosion. Compared with T73 state,
its strength is high, but its stress corrosion resistance is
poor.
421~538
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