In the worst case scenario, untreated carpal tunnel syndrome can result in permanent numbness and weakness in the hand. The numbness shows up in your thumb, index, middle, and half of your ring finger. The weakness is in your thenar muscles-at the base of the palm side of your thumb.
Carbon steel, or plain-carbon steel, is a metal alloy. It is a combination of two elements, iron and carbon. Other elements are present in quantities too small to affect its properties. The only other elements allowed in plain-carbon steel are: manganese (1.65% max), silicon (0.60% max), and copper (0.60% max).
Most metals used for construction purposes are alloys. For example, steel is an alloy with iron and carbon being the primary elements. Generally, iron-carbon alloys with up to 2.1% carbon by weight are considered steel and iron-carbon alloys with greater amounts of carbon are cast iron. Learn the names of the basic structural steel hot rolled shapes (W, HP, S, C, etc). 2  W, S, and M structural steel shapes tell their height and weight in their name (a W8 x 31 is 8 high and weighs 31 pounds per foot).