Steel - Ferrous Metal
Modern steels are made with a variety of alloy metal combinations to fulfill many purposes. Carbon steel, composed of iron and carbon, accounts for 90% of steel production.High strength low alloy steel has small additions (usually < 2% by weight) of other elements, typically 1.5% manganese, to provide additional strength for a modest price increase.
Copper can be found in many forms for recycling. Copper pipes, plate, wires, and various motor parts are all common.
Aluminium is theoretically 100% recyclable without any loss of its natural qualities. Recovery of the metal via recycling has become an important use of the aluminum industry. Recycling was a low-profile activity until the late 1960s, when the growing use of aluminum beverage cans brought it to the public awareness.
Recycling involves melting the scrap, a process that requires only 5% of the energy used to produce aluminum from ore.
Brass is an alloy of copper and zinc; the proportions of zinc and copper can be varied to create a range of brasses with varying properties.
Stainless steel is a steel alloy with a minimum of 10.5%to 11% chromium. Stainless steel does not easily corrode, rust or stain with water as ordinary steel does. It is also called corrosion-resistant steel, particularly in the aviation industry. There are different grades and surface finishes of stainless steel to suit the environment the alloy must endure. Stainless steel is used where both the properties of steel and resistance to corrosion are required. Stainless steel is 100% recyclable.
Motors and other machines are mostly metal. They are also difficult to break down due to how tightly they are constructed. JKS buys motors and other machines paying by weight and type.