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Flashcards in Non-Ferrous Metals Deck (20)
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0

Copper was historically found in what?

Rocks

1

Copper is now made from what?

Low Grade sulfide and oxide ores refined to remove impurities such as arsenic and sulfer

2

Pure copper has a purity percent of...

99.88%

3

Pure copper is used in what industries?

Plumbing and electrical

4

True or false: Copper is not malleable

False.

5

Name some characteristics of copp

Malleable
Redish color
Good Electrical conductor
Easily cast
Corrosive resistant

6

Brass is copper with what element added to it?

Zinc.

7

Name some non-ferrous metals

Gold
Silver
Copper
Brass
Bronze
Magnesium

8

What ore is aluminum made from?

bauxite

9

What metal is the most abundant in the earths crust?

Aluminum

10

Aluminum was first discovered under what conditions

Laboratory conditions

11

What year was aluminum discovered?

1825

12

What two metals are lighter than aluminum?

Berylium and magnesium

13

What happens to aluminum in sub zero conditions?

It's strength is increased while maintaining its ductility

14

Aluminum protects itself from corrosion by doing what?

Forms its own oxide coating

15

Does aluminum spark when ground?

No

16

Many aluminum alloys start to lose their strength at what temperature?

500 degrees Fahrenheit

17

What is the density of aluminum?

2700kg per meter cubed

18

What is the density of Steel?

7800 kg per meter cubed.

19

What is the melting point of aluminum?

660F