Steelmaking Process Quiz

What is the first step in the steelmaking process described in the video?

• Heating iron ore into pellets

• Blowing high purity oxygen into molten iron

• Exploding rock to extract taconite

• Creating coke from bituminous coal

How long is coal baked in airtight ovens to create coke?

• 10 to 12 hours

• 12 to 16 hours

• 6 to 8 hours

• 18 to 20 hours

What is added to the blast furnace to remove impurities?

• Clay

• Sand

• Limestone

• Salt

At what temperature does molten iron reach in the largest blast furnace?

• 2,700 degrees Fahrenheit (1482 C)

• 2,000 degrees Fahrenheit (1093 C)

• 3,000 degrees Fahrenheit (1649 C)

• 1,500 degrees Fahrenheit (816 C)

What is the purpose of the basic oxygen furnace?

• To turn iron into steel

• To create coke from coal

• To shape steel into sheets

• To cool molten steel

How many different chemistries of steel does the company produce?

• Over 1,000

• Over 500

• Over 2,000

• Over 1,500

What is the first step in transforming steel slab into steel sheet?

• Tempering

• Reheating to 2,400 degrees Fahrenheit (1315 C)

• Annealing

• Cold rolling

Which method is commonly used to protect steel from rusting?

• Galvanizing

• Tempering

• Quenching

• Hardening