FERROUS ALLOYS Flashcards
What are the main ferrous alloys?
Cast iron Stainless steel High-speed steel (tool grade steel) Mild steel Tinplate
What does CAST IRON look like?
It’s bright white or gray
What’s CAST IRON composed of?
It has 95% iron
It has less than 2% carbon
It contains Trace Amounts of other elements such as silicone manganese, sulphur, and phosphorus
What are the mechanical properties of CAST IRON?
Brittleness hardness
High-density
Good conductivity
What are some examples of CAST IRON?
Visis
Pots
Dumbbells
What does stainless steel look like?
Metallic grey
What is stainless steel composed of?
It is composed of 74% iron
17% Chrome
8% tin
And maximum of 1.2% carbon
What are the mechanical properties of stainless steel?
Resistant to corrosion
Mechanical rigidity
Extreme hardness
Ductility
What are some examples of stainless steel?
Pots and pans
Cutlery
What does high-speed (tool grade steel) look like?
Grey
Represents only 0.1% of the world’s steel production
What’s high-speed (tool grade steel) composed of?
99% iron
0.60% to 1.30% carbon
What are the mechanical properties of high-speed (tool grade steel)?
Extreme
Hardness average ductility
Resistance to high temperatures
Resistance to wear
What are some examples of high-speed (tool grade steel)?
Cutting tools
Drills
Drill bits
What does mild steel look like?
Low carbon content
What’s mild steel composed of?
99% iron
0.15% to 0.25% carbon
