1.2a Ferrous Metals Flashcards
What are ferrous metals?
Metals that contain iron
Name the three main non-ferrous metals
- Mild steel (low-carbon steel)
- Medium carbon steel
- Cast iron
What is mild steel made from?
Iron and carbon
Carbon content: 0.15-0.3%
What are the properties of mild steel?
Easy to work with
Easily machined
Cannot be heat treated
Will rust (Needs to be galvanised)
What is carbon steel?
Alloy of iron and carbon
Name the 2 types of carbon steel
Medium carbon steel, high carbon steel
Name a product made from mild steel
- Nuts and bolts
- Car bodies
Name two products made from medium carbon steel
- Garden tools
- Springs
Name two products made from high carbon steel
- Cutting tools
- Hammer head
Name three properties/characteristics of mild steel
- Ductile
- High tensile strength
- Poor corrosion resistance
Name four properties/characteristics of medium carbon steel
- Harder than low carbon steel
- Less ductile than low carbon steel
- Malleable
- Tough
Name three properties/characteristics of cast iron
- Hard outer skin
- Brittle core
- Good under compression
Name three products produced using cast iron
- Disc brakes
- Machine parts
- Engine blocks
What carbon content does mild steel have, and what is its melting temperature?
- 0.15-0.30% carbon
- 1427ºC melting temperature
What carbon content does medium steel have?
- 0.30-0.70% carbon
What carbon content does cast iron have, and what is its melting temperature?
- 3.5% carbon
- 1149ºC melting temperature
