2091 aluminium alloy

Aluminium copper alloy

2091 aluminium has chromium, copper, iron, lithium, magnesium as minor alloying elements.[1]

Chemical composition

Element[1] Value
Aluminum 91.9 - 95.4%
Chromium ≤ 0.10%
Copper 1.8 - 2.5%
Iron ≤ 0.30%
Lithium 1.7 - 2.3%
Magnesium 1.1 - 1.9%
Manganese ≤ 0.10%
Other, each ≤ 0.05%
Other, total ≤ 0.15%
Silicon ≤ 0.20%
Titanium ≤<= 0.10%
Zinc ≤ 0.25%
Zirconium 0.04 - 0.16%

Properties

Properties[1] Value
Density 2.58 g/cc
Tensile Strength, Ultimate 430 MPa
Tensile Strength, Yield 330 MPa
Elongation at Break 18 %
Modulus of Elasticity 75.0 GPa
CTE, linear 23.9 μm/m-°C

@Temperature 20.0 - 100 °C

Specific Heat Capacity 0.860 J/g-°C

at Temperature 100 °C

Thermal Conductivity 84.0 W/m-K
Melting Point 560 - 670 °C
Solidus 560 °C
Liquidus 670 °C

Aluminium alloy table

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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 "2091 ALuminium alloy". Archived from the original on 2021-01-22.


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