7049 aluminium alloy

The Aluminum / aluminum 7049 alloy is a forging aluminum alloy. It has a high stress, corrosion, and cracking resistance[1] and high machinability. Alloy can be hot formed. It can not be weldable (in some cases, tungsten inert gas welding can applied).

Chemical Composition
No Element [1] Content (%)
1 Aluminium 88.7
2 Zinc 7.6
3 Magnesium 2.5
4 Copper 1.5
5 Chromium 0.15

Properties
No Properties [1] SI Unit
1 Density 2.6 to 2.8 g/cm3
2 Elastic modulus 70 to 80 GPa
3 Poisson's ratio 0.33
4 Thermal conductivity 154 W/mK
5 Tensile Strength, Ultimate [2] 517 MPa
6 Fatigue strength [3] 160 to 170 MPa
7 Specific Heat Capacity [3] 860 J/kg-K

Applications
  1. structural forgings, especially in the missile or aircraft industries.
  2. aircraft structural parts.[4]
  3. Forged aircraft and missile fittings [5]
  4. landing gear cylinders [5]
  5. extruded sections [5]
  6. Structural forgings
  7. Missile industries

Designation

Aluminium alloy EN AW 7049 has similarities to the following standard designations and specifications ;

  1. Alloy 7049
  2. UNS A97049
  3. ASTM B209
  4. DIN AlZn8MgCu

References
  1. "7049 aluminum alloy".
  2. "Aluminum 7049 properties".
  3. "Alumum alloy 7049".
  4. "7049 aluminum alloy".
  5. "Alloy 7049 applications" (PDF).
  1. 7049 Aluminum :: MakeItFrom.com
  2. eFunda: Properties of Aluminum Alloy AA 7049
  3. Aluminum 7049 | Alloys International, Inc.
  4. MatWeb - The Online Materials Information Resource
  7. AA Standards Grade 7049 T73 - 7000 Series - Matmatch
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