6.1

Question 1

What is a ferrous metal?

Answer 1

Alloys where iron is the main element.

Question 2

What is the chemical symbol for Iron?

Answer 2

Fe (atomic number 26)

Question 3

What are the characteristics of iron?

Answer 3

Ductile, soft and soft easily formed. Lack strength. Usually is a silvery-white and relatively heavy.

Question 4

What happens when iron reacts with oxygen?

Answer 4

Forms iron oxide (rust)

Question 5

What is pig iron?

Answer 5

Iron ore which has been mixed with carbon (3.8-4.7%)

Question 6

How is steel made?

Answer 6

Re-melting pig iron and introducing oxygen.

Question 7

What is torsional strength?

Answer 7

Ability to resist twisting forces

Question 8

Flexural strength?

Answer 8

Resistance to bending

Question 9

Fatigue strength?

Answer 9

Resistance to failure under repeated loading.

Question 10

Impact strength?

Answer 10

Ability to resist shocked or sudden forces

Question 11

Hardness?

Answer 11

Ability to resist cutting, penetration or abrasion.

Question 12

Fusibility?

Answer 12

Ability to be melted and joined

Question 13

Common alloying elements?

Answer 13

Carbon/ sulphur/silicon/phosphorus/nickel/molybdenum/tungsten.

Question 14

What is austenitic?

Answer 14

Grade of steel/ (200 and 300 series)/ contains chromium and nickel/ non magnetic when annealed.

Question 15

What is the ferritic

Answer 15

Mainly chromium with low carbon content/ magnetic/ good ductility and weld ability.