It stops the steel from rusting by not letting oxygen or water touch the steel, as oxygen and water need to present for steel to rust.
By Galvanizing, Paint coating, Tin coating or Oiling
A typical bean tin is usually made of steel coated with tin. This coating helps prevent the steel from corroding and affecting the taste or quality of the beans inside the tin.
They are made from steel with a thin coating of tin to prevent corrosion.
Because it is a TIN coating on the inside of cans of food {today replaced by teflon/plastic} with the majority of metal comprising of steel.
Because so-called tin cans are actually made of Steel (Iron/Carbon alloy) with a thin coating of tin to act as a corrosion inhibitor.
Tin cans are actually made of steel that is coated with a thin layer of tin, which provides corrosion resistance. If the tin coating gets damaged or wears off, the underlying steel can rust when exposed to oxygen and moisture, leading to the appearance of rust on the can.
Tin cans are typically made from steel coated with a thin layer of tin. The rusting of tin cans is primarily caused by the steel core of the can, which is more susceptible to rust when exposed to moisture and oxygen. Factors such as the thickness of the tin coating, the type of protective coatings, and the environment in which the cans are stored can also affect the rate of rusting.
Manufacturers prevent corrosion on tin cans by applying a protective coating on the inner surface of the can, usually made of a polymer or epoxy resin. This coating acts as a barrier between the metal and the contents of the can, preventing corrosion. Additionally, some manufacturers may also use tin-plated steel or stainless steel to make the cans, which are more resistant to corrosion.
Tin is required in certain applications, such as soldering and coating steel cans, because it forms a protective oxide layer that prevents corrosion. Additionally, tin can improve the mechanical properties of some alloys, making them more suitable for specific uses.
Block tin is a type of refined tin that is cast into block shapes for easier handling and storage. It is often used in making solder, pewter, and as a corrosion-resistant coating for steel.
because the ca is really made out of steel ( which is mostly iron). This makes the can strong and cheap. The tin protects the steel from corroded by the food in the can. If you put a thin layer of it you wont neat any more.
Tin cans are not made entirely of tin, and the name "tin can" would be more accurate if it were "tinned can". The can is actually made of steel, plated on the outside with tin. The steel gives the can strength, and the tin plating helps to protect the steel from rusting. As your question indicates, there are situations in which the tin is not entirely successful in preventing rust. Aluminum cans are more naturally resistant to corrosion, and are also more easily made, because aluminum is more easily formed into a can than steel is.