Metals

Question 1

What are the three types of metals

Answer 1

Ferrous
Non-Ferrous
Alloys

Question 2

What are the Pros and Cons of Iron (Ferrous -Fe)

Answer 2

Cons: Rusts
Pros: Magnetic - separates easily in recycling
Plentiful supplies- in earths crust
Cheap

Question 3

What are the pros and cons of Mild Steel (Ferrous-Fe)

Answer 3

Cons: Has to be painted - or will rust
Needs prime#2, Top coat - colour#3, Lacquer#1
Pros: Durable- Easy to bend and shape
(car body’s are made from this- crushes like tin can)

Question 4

What are the pros and cons of Cast Iron (Ferrous-Fe)

Answer 4

Cons: Brittle - Because 3.5% Carbon Added
Pros: hard/ridged

Question 5

What are machine vices made of

Answer 5

Cast Iron (Ferrous-Fe)

Question 6

What are the pros and cons of Aluminium (non-ferrous- non-iron)

Answer 6

+/- Soft
+no rust
+100% Recyclable
- £ expensive

Question 7

Why would you use Aluminium for a coke can

Answer 7

• You don’t want rust in your drink

- Don’t have to paint the inside of the can

Question 8

What are the pros of Non-Ferrous metals (non-iron)

Answer 8

+Doesn’t rust
+Don’t need painting
+As it is worked it hardens

Question 9

What are the pros of an Aluminium Allloy

Answer 9

+no rust

+light

Question 10

What goes into an Aluminium Alloy

Answer 10

95% Aluminum

5% Silicon

Question 11

What is an Alloy

Answer 11

Mixture of 2 or more metals, to get the good properties of each metal to form a better metal.

Question 12

Stainless Steel

Answer 12

+No rust
90% mild steel
10% Chrome