2090 aluminium alloy

Aluminum copper alloy

2090 Aluminium alloy consists of copper, lithium, zirconium as minor elements and other impurity alloying elements.[1]

Chemical composition

Element[1] Weight Percentage (%)
Aluminum 93.2 - 95.6
Copper 2.4 - 3
Lithium 1.9 - 2.6
Magnesium ≤ 0.25
Titanium ≤ 0.15
Iron ≤ 0.12
Zinc ≤ 0.10
Silicon ≤ 0.10
Zirconium 0.080 - 0.15
Manganese ≤ 0.050
Chromium ≤ 0.050
Other (each) ≤ 0.050
Other (total) ≤ 0.15

Physical properties

Properties[1] Values
Density 2.59 g/cm3
Melting point 560 - 650 °C

Mechanical properties

Properties[1] Values
Tensile strength 550 MPa
Yield strength 520 MPa
Elongation at break 6%
Poisson's ratio 0.34
Elastic modulus 76 GPa

Thermal properties

Thermal Properties[2] Metric
CTE, linear 23.6 μm/m-°C

at Temperature 20.0 - 100 °C

Specific Heat Capacity 1.203 J/g-°C

at Temperature 100 °C

Thermal Conductivity 88.0 W/m-K
Melting Point 560 - 650 °C
Solidus 560 °C
Liquidus 650 °C

Applications

Aluminium 2090 alloy is used in aircraft components.[1]

  • Aircraft floor bulkhead stiffeners
  • Wing leading and trailing edges
  • Fuselage bulkhead webs

Aluminium alloy table

  • v
  • t
  • e
Aluminium alloys
Introduction
  • Aluminium
  • Aluminium alloys
  • History of aluminium
Al 1000 series (pure)
  • 1050
  • 1060
  • 1070
  • 1100
  • 1145
  • 1199
  • 1200
  • 1230
  • 1350
  • 1370
  • 1420
  • 1421
  • 1424
  • 1430
  • 1440
  • 1441
  • 1445
  • 1450
  • 1460
  • 1461
  • 1464
  • 1469
Al-Cu 2000 series
  • 2004
  • 2011
  • 2014
  • 2017
  • 2020
  • 2024
  • 2025
  • 2029
  • 2036
  • 2048
  • 2055
  • 2080
  • 2090
  • 2091
  • 2094
  • 2095
  • 2097
  • 2098
  • 2099
  • 2124
  • 2195
  • 2196
  • 2197
  • 2198
  • 2218
  • 2219
  • 2224&2324
  • 2297
  • 2319
  • 2397
  • 2519
  • 2524
  • 2618
Al-Mn 3000 series
Al-Si 4000 series
  • 4006
  • 4007
  • 4015
  • 4032
  • 4043
  • 4047
  • 4543
Al-Mg 5000 series
Al-Mg-Si 6000 series
Al-Zn 7000 series8000 series (misc.)
  • 8006
  • 8009
  • 8011
  • 8014
  • 8019
  • 8025
  • 8030
  • 8090
  • 8091
  • 8093
  • 8176
Named alloys

References

  1. ^ a b c d e "2090 Aluminium alloy properties". 6 May 2013.
  2. ^ "2090 Aluminium alloy properties". Archived from the original on 2021-01-22.