Classification of ferrous materials

Ferrous materials

1. Classification of ferrous
Dr. RisalahA. MohammedClassification of
Ferrous Materials

2. FERROUS MATERIALS
Metals may be defined as those metals whose main constituent is iron such
as pig iron, wrought iron, cast iron, steel and their alloys
IRON AND STEEL
The ferrous metals are iron base metals which include all varieties of iron
and steel. Most common engineering materials are ferrous materials which
are alloys of iron. Ferrous,meansiron

3. Properties of Ferrous
•Durable
•Great tensile strength
•Ductile
•Elastic
•Tough
•Usually magnetic
•Low resistance to corrosion
•A silver-like colour
•Recyclable
•Good conductors of electricity

8. STEEL
Steelisanalloyofironwithtypically
afewtenthsofapercentofcarbonto
improveitsstrengthandfracture
resistancecomparedtoiron.Many
otherelementsmaybepresentor
added.

9. Low-carbon steel
Carbon percent < 0.25%
properties
Low hardness and cost.
High ductility,
toughness,
machinability and weldability

10. Medium-carbon steel
Carbon percent 0.25 –0.60
properties
•Low hardenability,
•medium strength,
•ductility and toughness

11. High-carbon steel
Carbon percent 0.60 –1.25
properties
•High hardness,
•strength,
•low ductility

12. Stainless steel
Stainless steel is an iron and chromium alloy.
While stainless must contain at least 10.5%
chromium, the exact components and ratios will
vary based on the grade requested and the
intended use of the steel.
Carbon percent less than 0.03%
Properties
•Corrosion resistant.
•High tensile strength.
•High ductility
•Very durable.
•Temperature resistant.
•Easy formability and fabrication.
•Low-maintenance (long lasting)
•Attractive appearance.

13. Stress –Strain Curves for Different Type of Ferrous Materials