A little research got me this .... am I traveling the right path to start fulfill issues/87 ....
Anthracite
Bituminous
Lignite
Iron Ore
Iron Ore to Steel
The common ores of iron can be reduced to iron by heating them with carbon in the form of coke. Coke is produced by heating coal in the absence of air (making of Lignite coal).
Iron ore isn't pure iron it also contains an assortment of rocky material. This wouldn't melt at the temperature of the furnace, and would eventually clog it up. Limestone is added to convert this into slag which melts and runs to the bottom.
The heat of the furnace decomposes the limestone to give calcium oxide.
It is important not to add too much limestone because it would otherwise cool the furnace.
Extracting iron from iron ore various kinds of steel.
Cast iron
The molten iron from the bottom of the furnace can be used as cast iron.
Cast iron is very runny when it is molten and doesn't shrink much when it solidifies. It is therefore ideal for making castings. Cast iron is very hard, but also very brittle. If you hit it hard, it tends to shatter rather than bend or dent.
Mild steel
Mild steel is iron containing up to about 0.25% of carbon. The presence of the carbon makes the steel stronger and harder than pure iron. The higher the percentage of carbon, the harder the steel becomes.
Mild steel is used for nails & wire
High carbon steel
High carbon steel contains more carbon. The presence of the extra carbon makes it very hard, but it also makes it more brittle. High carbon steel is used for cutting tools and masonry nails (nails designed to be driven into concrete blocks or brickwork without bending). You have to be careful with high carbon steel because it tends to fracture rather than bend if you mistreat it.
Anthracite
Bituminous
Lignite
Iron Ore
Iron Ore to Steel
The common ores of iron can be reduced to iron by heating them with carbon in the form of coke. Coke is produced by heating coal in the absence of air (making of Lignite coal).
Iron ore isn't pure iron it also contains an assortment of rocky material. This wouldn't melt at the temperature of the furnace, and would eventually clog it up. Limestone is added to convert this into slag which melts and runs to the bottom.
The heat of the furnace decomposes the limestone to give calcium oxide.
It is important not to add too much limestone because it would otherwise cool the furnace.
Extracting iron from iron ore various kinds of steel.
Cast iron
The molten iron from the bottom of the furnace can be used as cast iron.
Cast iron is very runny when it is molten and doesn't shrink much when it solidifies. It is therefore ideal for making castings. Cast iron is very hard, but also very brittle. If you hit it hard, it tends to shatter rather than bend or dent.
Mild steel
Mild steel is iron containing up to about 0.25% of carbon. The presence of the carbon makes the steel stronger and harder than pure iron. The higher the percentage of carbon, the harder the steel becomes.
Mild steel is used for nails & wire
High carbon steel
High carbon steel contains more carbon. The presence of the extra carbon makes it very hard, but it also makes it more brittle. High carbon steel is used for cutting tools and masonry nails (nails designed to be driven into concrete blocks or brickwork without bending). You have to be careful with high carbon steel because it tends to fracture rather than bend if you mistreat it.
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