ALUMINUM BASICS
This metallic element has the chemical symbol Al.
What is aluminum?
This alloy series contains primarily magnesium and is known for excellent corrosion resistance.
What is the 5000 series?
This is the approximate melting temperature of pure aluminum.
What is 1,221°F or 660°C?
Aluminum weighs roughly one-third as much as this common structural metal.
What is steel?
Aluminum can be recycled ________ without significantly losing it's characteristics.
What is infinitely?
Aluminum is extracted primarily from this ore.
What is bauxite?
This alloy series contains magnesium and silicon.
What is the 6000 series?
This unwanted material floating on molten aluminum must be removed before casting.
What is dross?
This property makes aluminum valuable in power transmission lines
What is electrical conductivity?
Recycling aluminum saves about this percentage of the energy required to produce new aluminum from ore.
What is about 95%?
This process converts alumina into aluminum metal using electrolysis.
What is the Hall-Héroult Process?
Aircraft structures commonly use this copper-containing series.
What is the 2000 series?
Hydrogen dissolved in molten aluminum can cause this casting defect.
What is porosity?
Beverage cans are commonly produced from this aluminum alloy series.
What is the 3000 series?
Before modern production methods, aluminum was considered more valuable than this precious metal.
What is gold?
Approximately this percentage of the Earth's crust is aluminum, making it the most abundant metal. +/- 2% will be acceptable as correct.
What is about 8%?
This element is the major alloying addition in the 3000 series.
What is manganese?
This process removes dissolved hydrogen from molten aluminum
What is degassing?
This transportation industry relies heavily on 2XXX and 7XXX aluminum alloys.
What is aerospace?
The top of the Washington Monument is made from this metal
What is aluminum?
Aluminum naturally forms this protective surface layer when exposed to air.
What is an oxide layer?
Alloy 7075 belongs to this high-strength aluminum series and contains these elements.
What is the 7000 series made with zinc, magnesium and copper?
Excessive turbulence during pouring increases this oxide-related defect.
What are oxide inclusions?
Aluminum is popular in heat exchangers because of this thermal property
What is high thermal conductivity?
This alloy, containing magnesium and silicon, is one of the most widely used structural aluminum alloys because of its strength, machinability, and weldability.
Looking for the specific alloy number.
What is 6061 aluminum?