Q. What material do weight bars made of?

Answer

Weight plates that are used in Olympic lifting, which are sometimes referred to as "bumper" plates, are covered with solid rubber because they need to be able to withstand being dropped from an above-head height without breaking. Cast iron is used to make the plates used for general strength training and powerlifting, and these plates are far less expensive. The plating, or lack thereof, that is applied to a barbell is referred to as the finish. The method of finishing has an effect on the item's lifetime since untreated steel can oxidise and rust with time, which may have a detrimental effect on performance and durability. The types of fish include:ChromeZincBlack OxideBare Steel