Materials - Steel

Metals
Unit 1: Construction Principles
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Slide 1: Diapositive
Construction PrinciplesFurther Education (Key Stage 5)

Cette leçon contient 23 diapositives, avec quiz interactifs, diapositives de texte et 2 vidéos.

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Metals
Unit 1: Construction Principles

Slide 1 - Diapositive

timer
1:00
Name as many metals
as you can

Slide 2 - Carte mentale

Ferrous vs Non-Ferrous
The simple answer is that ferrous metals contain iron and non-ferrous metals do not.

Slide 3 - Diapositive

timer
0:40
Ferrous
Non-Ferrous
Stainless Steel
Cast Iron
Aluminium
Ductile Iron
Copper
Mild Steel
Tin
Lead

Slide 4 - Question de remorquage

STEEL
Steel is used in structural applications where high tensile, compressive and/or bending strength is required. 

Skyscrapers use steel frameworks to support their enormous weight, and the open framework of struts and ties visible in the structure of electricity pylons relies on the high strength of steel to provide support for electricity cables.

Embedded steel bars improve the otherwise poor tensile strength of concrete in reinforced concrete structures. 

In addition, countless steel screws, nails and fixings hold together the fabric of all types of buildings.

Slide 5 - Diapositive

Types of steel
  • Mild Steel
  • Stainless Steel
  • High Strength (or Carbon) Steel 

Slide 6 - Diapositive

Slide 7 - Vidéo

Which of these best describes mild steel?
timer
0:50
A
a form of plain carbon steel containing iron alloyed with between 0.15 and 0.35% carbon. Most structural steels fall into this category.
B
Steels with carbon content of between 0.30% and 1.7% . Tend to be brittle with little or no plastic deformation to warn of overloading prior to failure.
C
alloyed with chromium and nickel to significantly increase resistance to corrosion.
D
contains 2–4% carbon and other alloys, and 1–3% of silicon, which improves the casting performance of the molten metal. Is strong but brittle.

Slide 8 - Quiz

Which of these best describes stainless steel?
timer
0:30
A
a form of plain carbon steel containing iron alloyed with between 0.15 and 0.35% carbon. Most structural steels fall into this category.
B
Steels with carbon content of between 0.30% and 1.7% . Tend to be brittle with little or no plastic deformation to warn of overloading prior to failure.
C
alloyed with chromium and nickel to significantly increase resistance to corrosion.
D
contains 2–4% carbon and other alloys, and 1–3% of silicon, which improves the casting performance of the molten metal. Is strong but brittle.

Slide 9 - Quiz

Which of these best describes high strength (or carbon) steel?
timer
0:30
A
a form of plain carbon steel containing iron alloyed with between 0.15 and 0.35% carbon. Most structural steels fall into this category.
B
Steels with carbon content of between 0.30% and 1.7% . Tend to be brittle with little or no plastic deformation to warn of overloading prior to failure.
C
alloyed with chromium and nickel to significantly increase resistance to corrosion.
D
contains 2–4% carbon and other alloys, and 1–3% of silicon, which improves the casting performance of the molten metal. Is strong but brittle.

Slide 10 - Quiz

How is steel produced?

Slide 11 - Diapositive

8

Slide 12 - Vidéo

02:08
What raw materials are required to make steel?
timer
0:30
Limestone
Shale
Coke
Iron Ore
Sulphur

Slide 13 - Question de remorquage

03:40
What is the chemical formula of Iron Ore?
timer
0:20

Slide 14 - Question ouverte

05:43
What is the name given to the surface floating liquid that combines the limestone with the impurities?
timer
0:20

Slide 15 - Question ouverte

07:48
What does BOS stand for?
timer
0:20

Slide 16 - Question ouverte

09:54
What is missing from this Electric Arc Furnace?
timer
0:30

Slide 17 - Question ouverte

14:50
What shape would simultaneous vertical and horizontal rollers produce on a mill stand?
A
Sheets suitable for panelling
B
Hollow pipes
C
I-sections
D
Steel wire

Slide 18 - Quiz

15:31
Cold rolling allows for thinner, flatter steel sheets to be produced over hot rolling. What's the minimum thickness that can be achieved with cold rolling?
(in mm, numbers and decimal points only)

Slide 19 - Question ouverte

18:04
In 2020, on average, every tonne of steel produced led to the emission of 1.9 tonnes of CO2 into the atmosphere.
In 2020, 1.9 billion tonnes of steel were produced, and total direct emissions from this sector were of the order of 2.6 billion tonnes; of which around half can be attributed directly to buildings and construction.

What percentage of the global anthropogenic CO2 emissions does this 2.6 billion tonnes equate to?
A
1-3%
B
3-5%
C
5-7%
D
7-9%

Slide 20 - Quiz

How can we reduce the embodied carbon when constructing new buildings?

Slide 21 - Diapositive

Reduce primary material demand through optimised design
Reuse of
scrap material 
Use low-carbon alternative materials such as timber
using locally sourced materials where possible
Decarbonising materials production with renewable energy and maximising the use of waste heat
 Consider the use of precast concrete, 3D printing, prefabrication, BIM and modularity of buildings which may enable using fewer
materials and reducing waste

Slide 22 - Question de remorquage

How much did you enjoy this type of lesson?
😒🙁😐🙂😃

Slide 23 - Sondage