We are pretty sure if you will do your spring cleaning, you will find all kinds of metal in your home. Please dont throw it out , call Emperor Scrap Metal Brokers and you wont be disappointed. 
 Cast iron, an alloy of iron containing 2 to 4 percent carbon. It’s made by reducing iron ore in a blast furnace. The liquid iron is cast, or poured and hardened, into crude ingots called pigs, and the pigs are subsequently re-melted along with scrap and alloying elements in cupola furnaces and recast into molds for producing a variety of products.

The Chinese produced cast iron as early as the 6th century BC. The first ironworks in America were established on the James River, Virginia, in 1619. Its load-bearing strength made it perfect for the foundation of America’s earliest skyscrapers.
Most cast iron is called gray iron or white iron. Gray iron contains more silicon and is less hard and more machinable than is white iron. 

Cast iron is used for:
Making pipes
Making machines
Automotive parts
Pots pans and utensils
And ship anchors.
Cast iron is ferrous.

 

We also except Tin Sheet Metal 
Tin is soft, lightweight, silvery metal that is easy to melt, press and shape without tearing. It is resistant to corrosion and has low toxicity.
China and Indonesia are currently the world's largest producers. 
Tin is used as solder in the electronics industry. Tin alloys can also be found in bearings, automobile parts, dental amalgams, and aerospace metal. Even nuclear reactors can contain a small amount of tin.
Tin is used in the tinplate to make cans for food, drinks, cosmetics, fuel, oil, and paint. 90% of all tinplate is used to make cans for food and drinks, cosmetics, fuel, oil, and paints. 
Sheet Metal is used for:
Car bodies and other vehicles
Railroad cars
As cladding on wings and fuselages of aircraft 
Roofing, flashing and rain gutters
Furnaces and ductwork
And refrigerators, dumpsters, electrical enclosures, toolboxes, hoppers, bins, and medical tables.
Tin/Sheet metal is ferrous.

Amazing news you all!!
Total U.S. steel production in 2019 increased to 88.0 million metric tons from 86.6 million metric tons in 2018, a 1.6% increase. Indiana is the highest producer of steel in the country.
Steel is one of the most common manmade materials in the world. Modern steel is generally identified by various grades defined by assorted steel organizations globally.
Steel is an alloy of iron and carbon, and sometimes other elements like chromium. Because of its high tensile strength and low cost, it is a major component used in:
Buildings
Infrastructure
Tools
Ships
Trains
Cars
Machines
Appliances
And weapons.
Stainless steel is an alloy with a minimum of 11.5% chromium content. Stainless steel does not stain, corrode or rust as easily as ordinary steel. Stainless steel drew its name from the fact it “stains less.” There are different grades and surface finishes of stainless steel to suit the use.
Stainless steel is easily sterilized and resistant to corrosion.