Metals Flashcards
(24 cards)
What are the advantages of Mild Steel?
-high impact strength
-good ductility/weldability
-magnetic
-good malleability
-lighter than high carbon steel
-affordable
What are the disadvantages of Mild Steel?
-not very corrosion resistant
-doesn’t have high tensile strength
-cannot be heat treated
-heavy
What are the uses of Mild Steel?
-signs
-structural steel
-furniture
-nails
-decorations
What are the advantages of High Carbon Steel?
- Highest hardness and toughness of the carbon steels
- Lowest ductility
- Very wear resistant - almost always hardened and tempered
- 0.61% to 1.5% carbon - extremely hard and strong but more brittle than the steels comprised of less carbon.
What are the disadvantages of high carbon steel?
- Because its strong, its difficult to work with - cant be easily bent and moulded into different shapes
- More susceptible to rust and corrosion
- More expensive to produce
What are the uses of High Carbon Steel?
Hardness makes it preferred for metal and woodcutting tools such as axes, knives, springs and saws
What are the advantages of Copper?
- Economical
- Lightweight
- Formable
- Easy to join
- Safe
- Dependable
- Long-lasting
- 100% recyclable
- Ductile
- Conducts heat and electric well
What are the uses of Copper?
- electrical equipment
- wires
- motors
What are the disadvantages of Copper?
- Poor tensile strength
- Corrodes
- Relatively expensive
- Not very hard
What are the advantages of Duralumin?
- Strong
- Lightweight
- Hard
- Conductive
- Malleable
What are the disadvantages of Duralumin?
- Not corrosive resistant
What are the uses of Duralumin?
Planes
What are the advantages of Stainless Steel?
- Durable
- Easy to maintain
- Tends to be hygienic
- Versatile and customisable
- Good strength to weight ratio
- High resistance to corrosion
- Strong
- High melting point
- Attractive
- Range of tensile strength depending on alloy
- made of iron, carbon, chromium, steel, nickel
What are the disadvantages of Stainless Steel?
- Expensive
- Require frequent cleaning
- Soft (scratches, dents)
- difficult to weld
What are the uses of Stainless Steel?
- utensils
- dishwashers
- fridges
What are the advantages of Brass?
- High corrosion resistance
- Ductile and malleable
- Excellent machining qualities - they are easily worked.
- Available in a wide variety of forms, which may reduce stage sin manufacture.
- Considered an Attractive metal
- Good flow characteristics - it casts well and take detail.
What are the disadvantages of Brass?
- Not magnetic.
- Reasonable electrical and thermal conductor.
What are the uses of Brass?
- Locks
- Hinges
- Pipes
What are the advantages of Pewter?
- Malleable
- Easily fusible with other metals
- Not corrosive
- Water tight
- Low melting point 250oC
- Highly recycled
- Cost effective
What are the disadvantages of Pewter?
- Loses its shine/polish over time
- Very soft so can snap/break if too much force is applied
- Takes a long time to polish
- Excess heat can bend the casting
- Cannot take on precise small castings
- Can dent easily
What are the uses of Pewter?
- dishes
- church vessels
- decorative items
What are the advantages of silver?
- Malleable
- Ductile
- very conductive
- highly reflective
- very dense
- anti-bacterial
What are the disadvantages of Silver?
- Rather soft (scratches easily)
- not corrosive resistant
- very expensive
What are the uses of Silver?
- electrical components
- silver-wear
- dental alloys
