Alchemy chemistry classes

       Alchemy Chemistry Classes

Alloy

The meaning of the term ‘alloy’ is a substance formed from the combination of two or more metals. Alloys can also be formed from combinations of metals and other elements. The properties exhibited by alloys are often quite different from the properties of their individual components. It is not uncommon for alloys to have greater strength and hardness when compared to pure metals. An example of an alloy is red gold, which is produced by alloying copper and gold together. Another important alloy of gold is white gold, which is produced by alloying silver and gold together.

Bell Metal

Bell metal is an alloy that is primarily used for making bells and other related instruments (thus the name ‘Bell’ metal). It can be considered a form of bronze that contains a relatively large amount of tin in its composition. The typical composition of bell metal is:

• Copper (Cu) – 78%
• Tin (Sn) – 22%

Steel

Steel is an alloy that is extremely popular due to its low cost and high tensile strength. It is primarily an alloy of iron and carbon. However, different types of steel are known to contain varying amounts of carbon, along with other elements (such as chromium, manganese, sulfur, phosphorus, nickel, copper, and molybdenum). The composition of steel is primarily accounted for by iron (usually accounts for at least 75% of the alloy’s weight). It can also contain varying amounts of carbon and other elements based on the type of steel. For example, the composition of stainless steel is:

• Approximately 85-88% iron (Fe)