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dt > 1.7 Performance Characteristics of Metal > Flashcards

1.7 Performance Characteristics of Metal Flashcards

1
Q

Give the 5 stock forms of metals

A

Sheet
Plate
Bar
Tube
Structural angular

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2
Q

Define non-ferrous and give three examples

A

A metal that does not contain iron, it’s not magnetic and does not rust

Aluminium
Copper
Zinc
Silver
Gold
Titanium
Tin

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3
Q

State three properties/characteristics of aluminium

A

Lightweight
Corrosion-resistant
Ductile
Malleable
Can be welded
Electrical and thermal conductor

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4
Q

State two uses of aluminium

A

Aircraft bodies
Drink cans
Bike frames
Packaging

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5
Q

State three properties/characteristics of copper

A

Electrical and thermal conductor
Ductile
Malleable
Tough
Corrosion-resistant
Can be soldered and brazed

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6
Q

State two uses of copper

A

Electric wire
Printed electrical circuits
Waterpipes
Hot water tanks

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7
Q

State two properties/characteristics of zinc

A

low melting point
- Good corrosion restistant

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8
Q

State two uses of zinc

A

Galvanising steel as a protective coating for dustbins
Buckets
Farm gates
Intricate die casting

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9
Q

State three properties/characteristics of sliver

A

Corrosion-resistant
Malleable
Ductile
Can be soldered

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10
Q

State two uses of silver

A

Cutlery
Jewellery
Used for plating other materials

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11
Q

State three properties/characteristics of gold

A

Corrosion-resistant
Malleable
Ductile
Can be soldered

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12
Q

State two uses of gold

A

Jewellery
Connectors
Electric components
Switch components

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13
Q

State three properties/characteristics of titanium

A

Lightweight
Hard
High melting point
High resistance to corrosion

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14
Q

State two uses of titanium

A

Aircraft and spacecraft
Tooth implants
Golf clubs
Ships hulls

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15
Q

State three properties/characteristics of tin

A

Corrosion-resistant
Malleable
Ductile
Low melting point

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16
Q

State two uses of tin

A

Coating for food cans
Soft solder
It’s rarely used in pure form

17
Q

Define a ferrous metal and give three examples

A

A metal that contains mostly iron and carbon. Ferrous metals are magnetic and will rust

Low carbon steel
Medium carbon steel
Cast iron

18
Q

State three properties/characteristics of low carbon steel

A

Malleable
Poor resistance to corrosion
High tensile strength
Ductile
Low melting point

19
Q

State two uses of low carbon steel

A

Nuts, bolts, screws
Car bodies
Washers

20
Q

State three properties/characteristics of medium carbon steel

A

Hard
Tough
Less ductile than low carbon steel
Malleable

21
Q

State two uses of medium carbon steel

A

Garden tools
- Springs

22
Q

State three properties/characteristics of cast iron

A

Brittle core
Hard outer skin
Good under compression

23
Q

State two uses of cast iron

A

Engine blocks
Disc brakes
Machine parts

24
Q

Define non-ferrous alloys and give three examples

A

A mixture of two or more metals none of which contain iron

Bronze
Brass
Duralumin
Pewter

25
Q

State three properties/characteristics of bronze

A

Tough
Corrosion-resistant
Can be cast
90% copper, 10% tin

26
Q

State two uses of bronze

A

Coins
Statutes
Bearings

27
Q

State three properties/characteristics of brass

A

Corrosion-resistant
Electrical and thermal conductor
Cast well
Ductile
65% copper, 35% zinc

28
Q

State two uses of brass

A

Boat fittings
Ornaments
Cast values and taps
Door furniture

29
Q

State three properties/characteristics of duralumin

A

Lightweight
Equivalent strength to low carbon steel
Becomes hard as worked
Ductile
Aluminum with 4% copper, 1% magnesium, and manganese

30
Q

State two uses of duralumin

A

Aircraft parts
- Vehicle parts

31
Q

State three properties/characteristics of pewter

A

Malleable
Casts well
Low melting point
85-99% tin with the remainder consisting of copper and antimony

32
Q

State two uses of pewter

A

Sports trophies
Flasks
Decorative items, such as photo frames and candlesticks

33
Q

Define ferrous alloys and give three examples

A

A mixture of two or more metals, at least one of which contains iron

Stainless steel
High-speed steel (HSS)
Die steel (tool steel

34
Q

State three properties/characteristics of stainless steel

A

Corrosion-resistant
Hard
Tough
High melting point
18% chrome, 8% nickel

35
Q

State two uses of stainless stee

A

Cutlery
Kitchenware
Sinks

36
Q

State three properties/characteristics of high speed steel (HSS)

A

Hard
Tough
High level of resistance to friction heat
18% turgsten, 4% chromium, 1% vanadium, 0.5-0.8% carbon

37
Q

State two uses of high speed steel (HSS)

A

Drill bits
Tool blades
Milling cutters
Routing bits

38
Q

State two properties/characteristics of die steel (tool steel)

A

Hard
- Tough

39
Q

State two uses of die steel (tool steel)

A

Fine press tools
Blanking punches and dies
Extruder dies

dt (20 decks)

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