Iron Cast is a type of iron alloy that contains between 2% and 4% carbon, along with small amounts of silicon, manganese, and other elements. It is made by melting iron and pouring it into molds. Once cooled, it becomes very hard and strong but also brittle. This means it can withstand heavy pressure but can break or crack if dropped or struck.
How to Recognize cast iron?
You can identify it by observing, this iron usually has a dark gray to black color with a rough, grainy texture. It feels heavier than metals like aluminum and tends to crack or break when dropped rather than bending.
When tapped, it produces a dull sound instead of a ringing tone. It is magnetic, as are most iron-based metals. During a spark test, it gives off short red sparks, unlike steel which produces long white sparks.