öntöttvasakban
öntöttvasakban refers to a category of iron alloys known as cast irons. Cast iron is an iron-carbon alloy with a carbon content of greater than 2%. Other alloying elements are also present in varying amounts. The presence of carbon and silicon in cast iron results in a lower melting point and better fluidity than steel when molten. This makes cast iron a readily available material for casting in sand molds, a process known as iron casting. The properties of cast iron can be significantly altered by varying the composition and heat treatment. The high carbon content of cast iron is responsible for its characteristic brittleness, though this can be modified in certain types of cast iron.
There are several common types of cast iron, including gray cast iron, ductile iron (also known as