The product of blast furnace is called

The product of a blast furnace in the iron and steel manufacturing process is known as "pig iron." Pig iron is a brittle and high-carbon iron alloy that serves as the initial product before it undergoes further processing and refining to produce various types of steel and iron products. Pig iron typically contains around 3-4% carbon and various other impurities, making it unsuitable for most applications until it is converted into steel through processes like the Bessemer process or open hearth furnace.