AS DT Edexcel Materials list

List of ALL the materials you need to know pretty well for the AS edexcel DT Resistant Materials Products Design theory paper. (as of 2009)

HideShow resource information
Preview of AS DT Edexcel Materials list

First 387 words of the document:

Material Properties Useful information Uses
White cast iron · Brittle and very hard Carbon content: 1.7-2.9 pc · Heavy machinery
· Cannot be machined
Grey cast iron · Can be machined Carbon content: 2.5-4.0 pc · Cast iron cookware
· Easily cast · Disk brakes
· Corrosion resistant ·Components for machines
Mild Steel · Ductile, tough, malleable Carbon content: 0.15-0.30 · General engineering
· High tensile strength pc · Nuts and bolts
Medium Carbon Steel · Harder than mild steel but Carbon content: 0.3-0.7 pc · Garden tools
less ductile and malleable · Springs
High Carbon Steel · Properties improved by Carbon content: 0.7-1.4 pc · Hammer heads
heat treatment. ·Drills
Aluminium · Lightweight · Always alloyed to · Aircraft industry
· Soft and malleable improve its properties. · Engine components
· Corrosion resistant · An oxide layer forms · Castings
· Good conductor quickly removing its shine,
· Difficult to weld it actually protects the
· Cracks under stress, metal from further
requires constant oxidisation and so is often
annealing when worked used outdoors.
· Doesn't withstand loads · Melting point: 650 C
Copper · Very malleable/ductile · Can be joined via hard/ · Electrical cables
· Very good conductor soft soldering. · Central heating
· Corrosion resistant · Melting point: 1100 C · Printing circuits
· Easily machined
Zinc · Corrosion resistant · Protecting oxide layer · Batteries
· Easily worked · Melting point: 420 C · Galvanising
Stainless Steel · Corrosion resistant Composition: Chromium, · Kitchen utensils, pipes
· Expensive Nickel and Steel · Medical tools
· Hard to cut · Chemical/nuclear
Duralumin · lightweight and strong Composition: Aluminium, · Aviation industry
· Age hardens it Copper and Manganese · Automotive industry
· Malleable/ductile/ easily
Brass · Casts well Composition: Copper and · Ship's propellers
· Easily machined Zinc · Plumbing fittings
· Good conductor · Electrical components
· Susceptible to cracking
when cold worked
· Needs constant annealin'
Epoxy resin · Corrosion/electrical · Produced by mixing a · Adhesives
resistant resin and a catalyst · Paints and coatings
· Good bond qualities together, which are usually · Electronics
· Health problems/allergies in the form of liquids or
Urea Formaldehyde · Strong, hard, brittle · Chemical reaction occurs · Electrical fittings
· Heat resistant when mixed together. · Domestics appliances
· Once shaped, cannot be
Polyester resin · Good electrical insulator heated and reshaped. · Glass reinforced boats
· Heat resistant/brittle · Difficult to recycle. · Garden furniture

Other pages in this set

Page 2

Preview of page 2

Here's a taster:

Material Properties Useful information Uses
Acrylic · Stiff, hard, durable · Brittle, splinters easily · Lighting
· Easily scratchable · CD cases
· Good electrical insulator · Baths
High density · Good electrical insulator · Colour tends to fade · Water tanks/pipes
polyethylene (HDPE) · Chemical/impact resistant · Can break under stress · Buckets
· Flexible · Bowls
Low density · Good electrical insulator · Colour tends to fade · Cable insulation
polyethylene (LDPE) · Chemical resistant · Can break under stress · Packaging film…read more

Page 3

Preview of page 3

Here's a taster:

Material Properties Useful information Uses
Glass reinforced plastic · Can be as strong as steel Thermosetting resin · Car bodies
(GRP) · Good strength-weight reinforced with very fine · Boat hulls
ratio glass, resin is strong
· Resistant to corrosion (compressed) not good
· Prone to osmosis (water tensile strength and is
seeps through and brittle, adding glass
delaminates the hull) matting improves this.
· Resin and catalyst give
off harmful toxic fumes.…read more

Page 4

Preview of page 4

Here's a taster:

Material Properties Useful information Uses
Thermo-ceramics · Extremely hard They are advanced · Turbine blades in jet
· Very stable at high temps ceramic materials that are engines
· Very strong at high temps used in high temperature · Turbo chargers in racing
· Superior to ceramics surroundings. They are cars
· Brittle, break when produced by combining
dropped ceramic and metallic
· If they are imperfections powders by sintering.…read more

Page 5

Preview of page 5

Here's a taster:

Material Properties Useful information Uses
Photochromic paint · Reversible process Paints that contain · Security markers
· Almost instant transition pigments that change · UV warning sensors
of colour colour instantly when · Art
· Can create stunning stimulated with UV, when
pigment changes the light source is removed
it returns to it's original
colour.…read more


No comments have yet been made

Similar Design & Technology: Resistant Materials resources:

See all Design & Technology: Resistant Materials resources »See all resources »