FieldengCathodic Protection
Corrosion Rate from Mass Loss
Uniform penetration rate from coupon mass loss, density, area, and exposure time.
Cathodic ProtectionEngineering Fundamentals
Uniform penetration rate from coupon mass loss, density, area, and exposure time.
App id: CORR-01. Reference version 1.0.
How to fill it
Fill the inputs. The tool shows the outputs.
On the tool screen, Calc is the working sheet. Presets stores values you reuse. Reference is the formula, assumptions, and provenance below.
Formula
CR = (Δm / ρ) / (A × t)Inputs
| Name | Unit |
|---|---|
| Mass loss | g |
| Metal density | kg/m3 |
| Exposed area | cm2 |
| Exposure time | year |
Outputs
| Name | Unit |
|---|---|
| Penetration rate (hero result) | mm/year |
Diagnose
This tool does not attach diagnose observations.
Assumptions
- Uniform attack over the entered area. Not a pitting or remaining-life model.
Provenance
- ASTM G102-style conversion of mass loss to a uniform penetration rate.