Steelmaking

If a steel needs to be de-oxidized, what element is added?

Magnesium
Vanadium
Manganese
Sulfur

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Steelmaking

Which of the following describes the grain structure in a steel ingot?

A columnar grain structure
A strong grain structure
A fine uniform grain structure

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Steelmaking

Which of the following causes a steel to be "hot short?"

Lead
Iron Sulfide
Manganese
Silicon

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Steelmaking

What type of finish do hot rolled steels have?

A scaled finish
A dull gray to shiny gray finish with no scale
A shiny silver finish with scale

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Steelmaking

What does cold rolling do to a steel?

Toughens and strengthens steels
Makes the material more ductile
Shortens the grains in the direction of rolling
Does not have any affect on the metal

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Steelmaking

Which process is used most often when making alloy steels?

Open hearth
Electric furnace
Basic oxygen furnace
Bessemer converter

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Steelmaking

What is a killed steel?

A steel that is not useable.
A steel that's had oxygen removed.
A steel that contains high amounts of oxygen.

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Steelmaking

Ingots can be formed into what shapes?

Blooms
Billets
Slabs
All of these

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Steelmaking

Hot forged parts contain high residual stresses.

True
False

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Steelmaking

What type of finish do cold rolled steels have?

A silver finish with scale
A dull gray to shiny gray finish with no scale
A black finish with scale

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Steelmaking

When making pig iron in a blast furnace, what is a primary source of iron?

Taconite
Ferrite
Gangue
Limestone

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Steelmaking

What is Pig Iron?

A very pure form of iron.
A form of iron that contains impurities and needs to be refined.
A form of iron that containes 30% - 40% carbon.

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Steelmaking

A galvanized steel is typically coated in what metal?

Nickel
Cobalt
Zinc
Magnesium

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Steelmaking

When making iron, what three raw materials are used?

Coke, Iron Ore, Limestone
Limestone, Sulfur, Oil
Sulfur, Iron Ore, Carbon
Coal Tars, Coke, Iron Ore

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Steelmaking

What physical appearance is different between hot rolled steels and cold rolled steels.

Cold rolled steels have rounded edges
Cold rolled steels have square edges and are dimensionally precise
Cold rolled steels have scale on the edges

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Steelmaking

What happens to a steel when hot rolling is performed?

The process breaks down coarse grains and reforms them to make a stronger and finer grained steel.
The process removes scale from the product.
The process destroys the grain structure.

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Steelmaking

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Manganese

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Manganese

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A columnar grain structure

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A columnar grain structure

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Iron Sulfide

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Iron Sulfide

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A scaled finish

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A scaled finish

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Toughens and strengthens steels

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Toughens and strengthens steels

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Electric furnace

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Electric furnace

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