Enter the metal weight loss (mg), the metal density (g/mm^3), the total time (years), and the area of the sample (mm^2) into the Corrosion Rate Calculator. The calculator will evaluate the Corrosion Rate.
Corrosion Rate Formula
The following formula is used to calculate the Corrosion Rate.
COR = W / (D*A*T)
- Where COR is the Corrosion Rate (mm/year)
- W is the metal weight loss (mg)
- D is the metal density (g/mm^3)
- A is the area of the sample (mm^2)
- T is the total time (years)
How to Calculate Corrosion Rate?
The following two example problems outline the steps and information needed to calculate the Corrosion Rate.
Example Problem #1
- First, determine the metal weight loss (mg).
- The metal weight loss (mg) is calculated to be : 50.
- Next, determine the metal density (g/mm^3).
- The metal density (g/mm^3) is measured to be: 10.
- Next, determine the area of sample (mm^2).
- The area of sample (mm^2) is found to be: 3.
- Next, determine the total time in years.
- This is given as 3 years.
- Finally, calculate the Corrosion Rate using the formula above:
COR = W / (D*A*T)
The values provided above are inserted into the equation below and computed.
COR = 50 / (10*3*3) = .55 (mm/year)
Example Problem #2
The variables required for this problem are provided below:
metal weight loss (mg) = 60
metal density (g/mm^3) = 4
area of sample (mm^2) = 5
time (years) = 2
Test your knowledge using the equation and check your answer with the calculator.
COR = W / (D*A*T) = (mm/year)
