The time it takes for a pin to rust can vary significantly based on several factors, including the material of the pin, environmental conditions (like humidity and temperature), and whether it has protective coatings. Generally, a steel pin can start to show signs of rust within a few days to weeks in a humid environment. However, in dry conditions or if made of stainless steel, it may take much longer, potentially months or even years. Regular exposure to water or salt can accelerate the rusting process.
If they are an alloy, they will eventually rust.
How long will it t take a quarter to rust in fresh water
a long time
It depends on the quality of the nail. If it is painted it Amy take long to rust. In general it may take a month or so for the nail to rust.
a week it take or two
5 months
50 years
A very long time. Longer than you probably have.
Aluminum does not rust. Alumininum can also be anodized to keep it from corroding when salt and other contaminats get on it.
Copper does not rust; it develops a greenish film called patina when exposed to air and moisture. The formation of patina can take several years, depending on the environmental conditions.
a few weeks
Yes, a safety pin can rust in salt water due to the presence of moisture and salt, which can accelerate the oxidation process on the metal surface. It is important to rinse and dry the safety pin thoroughly after exposure to salt water to prevent rusting.