G.AL® C330R
high strength –
extremly form stability
Higher Strength, Six-Sides Sawn Plate
Alloy: EN AW-7021 (AlZn5,5Mg1,5)
Type of alloy: heat-treatable
Temper: solution heat treated, quenched & artificially aged, T79
Surface:six-sides sawn, roughness Ra <15 µm
- low-stress properties
- very stress relieved
- very high strength and hardness
- available up to 480mm thickness
- six-sides sawn surface
The higher-strength aluminium plate G.AL® C330R from alloy EN AW-7021 (AlZn5.5Mg1.5) with material temper T79 sawn on all sides is characterised by very high strength and hardness as well as very good low-stress properties. The very low strength and hardness decrease from plate edge to the centre makes G.AL® C330R a superior material in virtually all sectors of the capital goods industry.
Anwendungsgebiete
![g al c330r 1 g al c330 werkzeugbau 460x306 1](https://gleich.de/wp-content/uploads/2020/08/g-al-c330-werkzeugbau-460x306-1.jpg)
Toolmaking
More highly-loaded components such as tool changers (revolver magazine) for turning machines are one of the classic applications of G.AL® C330R due to its good strength.
![g al c330r 2 g al c210r formenbau 460x307 1](https://gleich.de/wp-content/uploads/2020/11/g-al-c210r-formenbau-460x307-1.jpg)
Mould-making
The high thermal conductivity of G.AL® C330R makes for short cycle times in foaming, blowing, deep drawing, RIM and injection moulds (low and medium pressure).
![g al c330r 3 g al c330r automation 460x306 1](https://gleich.de/wp-content/uploads/2020/08/g-al-c330r-automation-460x306-1.jpg)
Automation
In highly-loaded components such as jigs and swivel devices, G.AL® C330R frequently replaces high- and ultra-high-strength rolled plates characterised by extreme residual stresses.
![g al c330r 4 g al c250 maschinenbau 460x306 1](https://gleich.de/wp-content/uploads/2020/08/g-al-c250-maschinenbau-460x306-1.jpg)
Mechanical engineering and special machine engineering
With G.AL® C330R, holders, clamping devices, etc., even with very high degrees of machining, can be produced quickly and safely due to the very good machinability and dimensional stability.
![g al c330r 5 g al c330r handhabungsautomaten 460x307 1](https://gleich.de/wp-content/uploads/2020/11/g-al-c330r-handhabungsautomaten-460x307-1.jpg)
Handling machines
Tool and component carriers are preferably made of low-stress and wear-resistant Al materials. G.AL® C330R fulfils these requirements completely.
![g al c330r 6 g al c330r thermische belastungen 460x306 1](https://gleich.de/wp-content/uploads/2020/11/g-al-c330r-thermische-belastungen-460x306-1.jpg)
Thermal stresses
High-strength aluminium alloys tend to undergo irreversible loss of strength and structural changes in continuous operating temperatures above 90 °C. G.AL® C330R can be used permanently at 120 °C and for short periods (4 – 6 h) up to 140 °C without suffering damage. They can even withstand temperatures up to 160 °C for 1 – 2 h.
All high-alloyed materials are very sensitive to contact corrosion, especially when steel, copper, brass or bronze was previously used on the cutting machines. In most cases, then there is also a pH value of well above 8.5. To avoid contact corrosion, the components should be taken off the machine immediately after machining and thoroughly cleaned and dried.