Steel Production and Properties

How much steel was used in the US in 2012?

• 6.4 million tonnes

• 18 kg per person

• 100 tonnes

• 24 tonnes

What is true about steel's origin?

• It is a natural element

• It is found in sea snail armour

• It is man-made

• It is a lightweight metal

What is predicted to happen to the Titanic's hull within 50 years?

• It will be salvaged for new ships

• It will be fully covered by marine life

• Iron-eating bacteria will cause it to collapse

• It will remain intact indefinitely

How is steel primarily made?

• By combining iron and carbon

• By removing impurities from iron

• By heating iron ore to high temperatures

• By adding chromium to iron

Which industry is the largest consumer of steel worldwide?

• Shipbuilding

• Electronics

• Construction

• Automotive

What property makes steel suitable for building skyscrapers?

• High electrical conductivity

• Resistance to rust

• High strength and durability

• Lightweight nature

Which element is most commonly added to steel to make it stainless?

• Copper

• Chromium

• Nickel

• Aluminium

Which process is commonly used to recycle steel?

• Electric arc furnace

• Electrolysis

• Blast furnace

• Open-hearth furnace

What is the main raw material used to produce steel?

• Nickel ore

• Aluminium ore

• Iron ore

• Copper ore

Which property of stainless steel makes it ideal for kitchen utensils?

• Electrical conductivity

• High density

• Corrosion resistance

• Magnetic properties