To clean hard water stains from a cast aluminum teapot, mix equal parts of white vinegar and water in the teapot and let it soak for about 30 minutes. After soaking, use a soft sponge or cloth to gently scrub the stains. Rinse thoroughly with warm water and dry immediately to prevent further staining. For stubborn spots, you can also use a paste of baking soda and water as a gentle abrasive.
One of the benefits of owning cast aluminum patio furniture, available in several colors, is that it is easy to clean and maintain. Wash it with soapy water and then rinse well with clean water. Since cast aluminum is rust-resistant, it is not absolutely necessary to cover this type of furniture during periods of inclement weather.
You can remove mineral deposits from your teapot with a mild vinegar solution.
There is no specialized cleaner for aluminim. You can clean it with any metal based cleaner, or even just soap and water. This will allow you to keep it clean.
One would use a cast iron teapot at any time for a tasty cup of tea. Cast iron teapots keep the tea warm for over an hour, the teapot heats evenly and brings out the best flavour. The teapot should also last a lifetime.
To maintain the quality, you would need to clean it regularly with soap and water. Here is a detailed guide on how to clean it: http://www.ehow.com/how_6703044_clean-aluminum-outdoor-furniture.html
I don't have a numeric answer for you, however, I do know that sheet aluminum has better thermal conductivity than cast. It has to do with the way that cast aluminum cools.
Heads are aluminum and block is cast iron
Extruded aluminum is generally stronger than cast aluminum due to its uniform grain structure, which results in better mechanical properties and greater structural integrity. Cast aluminum may have variations in its grain structure and density, making it more susceptible to cracks or failures under stress. Extruded aluminum is typically preferred for applications that require higher strength and durability.
The price difference between aluminum outdoor furniture and cast iron is very significat. Aluminum can be hundreds of dollars cheaper.
Cast aluminum patio furniture from Topgrill is long-lasting and attractive. Find cast aluminum deep seating, an outdoor table or outdoor dining chair.
The price for cast aluminum varies from alloy type and market fluctuations. Today the current price for A380 aluminum is $1.03 per pound.
There are many reasons to choose cast aluminum patio furniture. One is that aluminum does not rust, ever. It will stay new looking for a long time with minimum maintenance. Another reason is because it is durable and long lasting. Cast aluminum is solid all the way through, giving it strength. The next reason is because there are many different colors and styles to choose from. Those are various reasons why you should choose cast aluminum patio furniture.