Aluminium Plates ALPLAN 7075

Alplan 7075

ALPLAN® 7075 precision plates combine a good dimensional stability with high mechanical strength. Both the outstanding flatness and the low roughness of the surfaces, protected by a plastic film, make surface milling by the end user superfluous. This combination of properties enables significant cost savings in machining. Applications include reference plates, machine housings, transport tables, jigs, robot arms.

PROCESSING METHODS

Weldability

  • TIG / MIG: not suitable
  • Resistance: good

Anodizing

  • Technical: good
  • Decorative: dark color not suited*

Machinability: excellent

Corrosion behaviour:

  • Moderate in inland atmosphere
  • Critical in marine atmosphere

AVAILABILITY

ALPLAN® 7075 precision plates are available in temper T651 (quenched – stretched – artificially aged) in the following dimensions : Thickness Dimensions 10–80 mm 1520 x 3020 mm (other dimensions and tempers on request)

CHEMICAL COMPOSITION (weight-%)

Si Fe Cu Mn Mg Cr Zn Ti+Zr
max.
0.4
max.
0.5
1.2
2.0
max.
0.30
2.1
2.9
0.18
0.28
5.1
6.1
max.
0.2

PHYSICALPROPERTIES (nominal values)

  • Density 2.81 g/cm3
  • Elastic Modulus 72000 MPa
  • Lin. thermal expansion coefficient (20°-100°C) 23.6 10-6 K-1
  • Thermal conductivity(Temper T651) 115-140 W/mK
  • Electrical conductivity at 20°C(Temper T651) 17-21MS/m

MECHANICAL STRENGTH
Min.tensile properties (Temper T651 / EN Standard 485-2)

Thickness
(over...to)
Rm
[MPa]
Rp0.2
[MPa]
A50
[%]
9,9-12,5 mm 540 460 8
12.5- 25 mm 540 47 6
25 - 50 mm 530 460 5
50 - 60 mm 525 440 4
60 -80 mm 495 420 4

Typical strength for various thicknesses

Thickness
(over...to)
Rm
[MPa]
Rp0.2
[MPa]
A50
[%]
HB
9,9 -25 mm 575 510 10 175
25 -60 mm 565 500 10 175
60 -80 mm 540 465 9 175

TOLLERANCES

Thickness Thickness tolerance
All ±0.10 mm
Thickness Longitudinal e transverse flat
10- 15 mm max. 0,75 mm / m
15.1- 80 mm max. 0,50 mm / m
Thickness Roughness Ra
All max.0.40 μm

** Heating the alloy can result in loss of strength of properties or of capability for fabrication, assembly or application in a particular case. Whenever a new application of this alloy is contemplated, and if this application involves special properties such as corrosion resistance,toughness, fatigue strength, it is strongly recommended that the user should consult the producer in order to make a precise and appropriate selection of the material. The information in this publication does not imply a guarantee of properties or of capability for fabrication, assembly or application in a particular case.

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