2. STEEL
• Steel is
an alloy of iron.
• Carbon is the
primary alloying
element.
• Alloy steel is steel to
which additional
alloying elements
have been
intentionally added
to modify the
characteristics of
steel.
3. STEEL
• ORIGINS:
-Steel was known in
antiquity.
-It may have been
produced by managing
bloomeries, or ironsmelting facilities.
-The earliest known
production of steel is
about 4,000 years old.
4. STEEL
• PROPERTIES:
-It’s found in the Earth's
crust only in the form of an
ore.
-It transfers heat and
electricity.
-It can be forged into
different shapes.
-It’s very strong and
resistant to fractures.
-It’s long lasting.
6. STEEL
• RECYCLYING:
-Steel is 100% recyclable
-It can be recycled an
infinite amount of times,
saving energy and raw
materials each time it.
-It’s re-processed.
-Most steel has around
20% recycled content.
7. STAINLESS STEEL
• It’s a type of steel
formed by chromium,
carbon & nickel.
• It’s a steel alloy.
• It does not easily
corrode, rust or stain
with water.
• It’s not fully stainproof.
8. STAINLESS STEEL
• ORIGINS:
• It was discovered by
Harry Brearley in
1913.
• This happened while
he was experimented
with steel alloys.
9. STAINLESS STEEL
• PROPERTIES:
• Corrosion resitance
• Resistance to high and low
temperature
• Easy of manufacture
• Strength
• Aesthetics
• Hygienic properties
• Duty cycle.
10. STAINLESS STEEL
USES:
Cookware
Garden tools and furniture
Buildings,elevators
Bus stops, telephone booths, subway
cars and stations equipment
• Tools to create pharmaceuticals
products
• Industrial plants
• Parts of aircraft engines and much
more!
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11. STAINLESS STEEL
• RECYCLYNG:
• Approx 90% of stainless steel
is recycled.
• It can be recycled again and
again.
• No loss of quality .
• Its components are
recycled in the same process.
• Recycling saves resources and
reduces greenhouse gas.
• It’s good for the
environment, for our future
and for future generations.
