3.4365 Aluminium - zinc alloy

Designation

Chemical composition:

Delivery condition:

T651 - Solution annealed, stress relieved by controlled stretching and artificially aged.

Strength:

max. 158 HB
(≈ max. 540 N/mm²)

Thermal conductivity at 100 °C:

130-160 W/m K

Character:

hardened, high-strength aluminium zinc alloy with good properties
for structure-etching, as well as good machinability, EDM and polishing properties
Density: 2.8 kg/dm³
Coefficient of thermal expansion: 23.4 10-6 m/mK
Maximum temperature, permanent/short term: 90/120 °C

Application:

plates for mould bases and die sets with increased requirements on
strength; components for machine and jig construction

Treatment by

good suitability
Polishing, machining, EDM

Etching:
Suitable for structure-etching

Repair welding:
not suitable for welding

Heat treatment:

Note: Subsequent heat treatment may lead to
a deterioration of the mechanical properties!

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