Grid casting aluminium

Effect of aluminium on the loss of calcium in grid casting [36]. 

Low-calcium alloys (with 0.02—0.04 wt% Ca content), used for casting negative grids for standby batteries intended for float service. Very small amounts of aluminium are usually added to these alloys. 

High-calcium alloys (0.10—0.15 wt% Ca). They contain high levels of aluminium as well and are used for casting negative grids for automotive batteries. 

Aluminium alloys of the 1000, 3000, 5000 and 6000 series as well as casting alloys A-S7G (42100) resist very well in deionised or demineralised water, without contaminating it. Many installations such as storage tanks and distribution grids have been manufactured in aluminium [49]. Refined aluminium 1199 is prone to intercrystalline corrosion in deionised water, even at low temperatures, i.e. around 50 °C [50]. 

Tubing for domestic gas distribution grids have been manufactured in 6060 tubes. Burners of gas cookers are in aluminium casting alloys. 

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