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Aluminium alloy 6060

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Chemical composition

Nominal chemical composition

Al-0,5Mg-0,45Si

Normalized chemical composition

Table 1 –
The chemical composition of the alloy 6060 by EN 573-3 in comparison with alloys 6063 AD31 and GOST 4784-97

comparison of alloys 6060, 6063 and AD31

See. table 1 and figure below. Alloy 606035 – internal company HYDRO c alloy narrowed intervals of chemical elements in the alloy 6060. This alloy is often used in the production of aluminum profiles for walling – window, doors, facades.

Metallurgical characteristics

  • Wrought
  • Thermally hardenable
  • Partial analogues: alloys 6063 and AD31.
  • Compared with 6063 AD31 and abortion 6060 It has an excessive content of Si relative to the magnesium. The silicon content is about the same, and the magnesium content is much lower: 0,35-0,6 instead 0,45-0,9 %.
  • Maximum iron content: 0,30 compared with 0,35 % in 6063 and 0,5 % in AD31.
  • The place of alloy 6060 among other 6xxx series alloys – look. picture below.

designations

  • EN 573-3: 2013: EN AW-6060 и EN AW-Al MgSi
  • Teal Sheet – Aluminium Association: 6060
  • Unified Numbering System (UNS): А96060
  • ISO 209:2007: 6060
  • DIN 1725-1 (canceled): AlMgSi0.5 and 3.3206

Typical applications

  • Enclosing constructions, such as windows, facade constructions, enter the store, winter gardens.
  • internal partitions, stairs, fences, rail.
  • Heat dissipating elements ("combs") of electronic devices, including, computers.
  • Flexible Assembly Systems, elements of engineering equipment.
  • Details trucks body.
  • Interior equipment of passenger cars.
  • irrigation, heating and cooling pipes.
  • Furniture and office equipment.

Mechanical properties

Normalized mechanical properties

Table 2 –
requirements EN 755-2: 2016 to mechanical properties
extruded rods, tubes and profiles of alloy 6060


Typical mechanical properties

See. table 2:

  • tensile strength
  • yield point (0.2 %)
  • elongation (A)
  • Shear strength
  • Vickers hardness

Table 2 – Typical mechanical properties of the alloy 6060 [1]

6060-mexsvoystva-typical

Poisson's ratio

0,33

Elastic modulus (Young's modulus)

  • in tension and compression - 69000 MPa
  • Shear - 26000 MPa.

Physical properties

Density

2,70 g / cm3 at 20 ° C

melting interval

from 600 to 655 ° C.

The coefficient of linear thermal expansion

23,5 μm / (m K) in the range from 20 to 100 ° C.

Thermal conductivity

200 W / (m K)

Specific heat

880-900 J / (kg K)

electrical conductivity

52 % IACS (54 % in relation to annealed copper)

Technological properties

Extrudability

Weldability

  • Good arc-welded under inert gas, in particular, argon arc welding, as non-consumable electrode (GTAW-TIG), and consumable electrode (GMWA-MIG).
  • Conventional welding alloy - 4043.

homogenization

580-585 ° C for at least 2 hours.

Annealing

420 ° C.

Temperature hardening

510 ° C.

artificial aging

185 ° C. 5 hours.

bending

In the state T4.

Sources:
1. European Aluminium Association – http://www.alueurope.eu
2. EN 573-3:2013
3. EN 755-2:2016
4. TALAT 1302

In Handbook of deformable alloys