meter per year
Corrosion rateexact by definition
The metre per year is the coherent base unit of this type: metal thickness lost per year of exposure, expressed as a uniform penetration rate. Its factor of 1 is exact. Real corrosion rates are far smaller than a metre a year, so this unit exists as the arithmetic base rather than as a working unit; mm/yr and mpy are what engineers actually use.
Watch out: A corrosion rate is a uniform-penetration figure. It says nothing about pitting, which can perforate a tube while the average metal loss stays negligible. A cooling loop reporting an excellent 1 mpy general rate can still fail from a single pit within a year.
| 1 | 1,000 |
One meter per year in every corrosion rate unit
| 1,000,000,000 | nanometer per year (nm/yr) | |
| 1,000,000 | micrometer per year (μm/yr) | |
| 39,370.1 | mil per year (mpy) | |
| 1,000 | millimeter per year (mm/yr) | |
| 39.3701 | inch per year (in/yr) | |
| 1 | meter per year (m/yr)this unit |
Solvers that use corrosion rate