Blast furnace is used to produce

Explanation:

Blast furnace:

• The furnace used for smelting iron ore is the blast furnace.
• The product obtained from smelting in the blast furnace is pig iron.

The main parts of the blast furnace are:

• Throat
• Stack
• Bosh
• Hearth
• Double bell charging mechanism
• Tuyeres

Properties and use of pig iron:

• Pig iron absorbs varying amounts of carbon, silicon, sulfur, phosphorus, and manganese during the smelting process.
• A high amount of carbon makes the pig iron very hard and brittle, and unsuitable for making any useful article.
• Pig iron is, therefore, refined and remelted and used to produce other varieties of iron and steel.