The padlocks material – aluminum, steel, iron and brass
How to choose a Padlock: Types And Features : The Padlocks Material Aluminum, Steel, Iron And Brass
Quote from Article entitled How to choose a Padlock: Types And Features:
If you want your lock to serve you as long as possible, it is important to pay attention to the materials of which its parts are made. It's hard to say for sure what materials are the most reliable, since all materials have certain advantages and disadvantages.Aluminum. The lightest models of locks, that do not rust, but due to the fact that the metal is soft, are not strong enough.Steel. These are perhaps the most durable and reliable products, they perfectly resist breaking, so they are not cheap.Cast iron. These are affordable and sufficiently robust models, but when the temperature changes, cast iron can become brittle, and when used with certain situations can quickly corrode.Brass. They do not corrode and look very attractive, but despite their high cost, such models are not sufficiently strong.
The full version of the article can be found here.