Cast Aluminum

Cast aluminium is made from bauxite dissolved in caustic soda, causing the alumina to crystallize and settle to the bottom of the container. The alumina is broken down using an electric current that separates the aluminium from the oxygen. The aluminium from the process is sent to a casting house to remove impurities and to be formed in pure aluminium billets.
Once the aluminium has been purified and shaped into billets, it is melted into a molten form and mixed with its alloying elements. Finally, in different percentages, the mixture of aluminium and alloys is poured into moulds to produce products or shaped for further processing.
Cast aluminium alloys have lower tensile strength than wrought aluminium due to the defects from the moulding process; it is susceptible to cracking and shrinkage. Despite this, cast aluminium is a cost-effective material that can be formed into a wide variety of shapes. In its molten form, cast aluminium easily takes on the shape and form of the mould, filling every portion and crevice.
A four-digit code that includes a decimal value is assigned to each cast aluminium grade:

• The first digit indicates the primary alloying element of the grade or series.
• The second and third digits are arbitrary except for the 1XX.X series. For these series, these digits indicate the purity of the pure aluminium alloy.
• The last digit indicates whether the alloy is a casting (“.0”) or an ingot (“.1” or “.2”).

 Chemical Composition Aluminum 2000 series

Applications of Aluminum 2000 series

Physical Properties

The aluminium content for unalloyed aluminium not made by a refining process is the difference between 100.00 percent and the sum of all other analyzed metallic elements present in amounts of 0.010 percent of more each, expressed to the second decimal before determining the sum. For alloys and unalloyed aluminium not made by a refining process, when the specified maximum limit is 0.XX, an observed value or a calculated value greater than 0.005 but less than 0.010% is rounded off and shown as" less than 0.01%". Composition information is provided by the Aluminum Association and is not for design 

Heat Treatment

These alloys are hardenable by cold working and by heat treatment.

Corrosion Resistance

Grade 1050H14 aluminium sheet contains a minimum of 99.5% pure aluminium and therefore has excellent corrosion resistance. It has great resistance to chemicals and can be used outside without rusting.  It is suitable for use in saltwater, however grade 5251 will perform better in this environment.

Welding

1000 series aluminium sheet is excellent for welding, brazing & soldering.

Machining

Due to its very high aluminium content (99.5% minimum), grade 1000 aluminium is quite soft and therefore it is not really suited to various types of machining as tools and cutters will quickly clog up. Grade 1000 is however suitable for laser cutting.

Cold Working / Forming

Grade 1000 aluminium sheet is designed for cold working & forming. It is extremely ductile and is a truly bendable grade of aluminium. You can take a sheet of Grade 1050 aluminium and fold it over, back on itself and it does not crack or break

Conclusion

Grade 1000 aluminium sheet contains a minimum of 99.5%pure aluminium and therefore has excellent corrosion resistance. It has great resistance to chemicals and can be used outside without rusting. It is suitable for use in saltwater, however grade 5251 will perform better in this environment.

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Warning!!!

Limitation of Liability and Disclaimer of Warranty: In no event will our team, be liable for any damages arising from the use of the information included in this document or that it is suitable for the 'applications' noted. We believe the information and data provided to be accurate to the oest of our knowledge but, all data is considered typical values only. It is intended for reference and general information and not recommended for specification, design or engineering purposes. Our team assumes no implied or express warranty in regard to the creation or accuracy of the data provided in this document.