Cost for keratoconus treatment can vary greatly depending on the best option for the individual patient. Since treatments range from glasses and contact lenses (several hundred dollars) to a corneal transplant (many thousands of dollars) it is difficult to suggest one cost for keratoconus treatment.ost for keratoconus treatment can vary greatly depending on the best option for the individual patient. Since treatments range from glasses and contact lenses (several hundred dollars) to a corneal transplant (many thousands of dollars) it is difficult to suggest one cost for keratoconus treatment.
Steel is an alloy (mixture) of Iron and Carbon. Iron is the element abbreviabed as Fe on the periodic table (number 26), while Carbon is abbreviated as C (number 6).
Keep these 10 differences in mind when deciding which type of metal to use in your next project: 1  Strength to weight ratio. Aluminum is typically not as strong as steel, but it is also almost one third of the weight. 2  Corrosion. Stainless steel is made up of iron, chromium, nickel, manganese and copper. 3  Thermal Conductivity.