Stainless Steel
Published on Nov 30, 2015
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PRESENTATION OUTLINE
Elements
Chromium, Iron, Carbon, & Nickel
Others: Nitrogen, Calcium, Manganese, etc.
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Type of Alloy
A combination of substitutional and interstitial
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Around 1300 B.C.
Steel was invented when Hittites (in what is now Turkey) derived iron from its ore and heated it.
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Stainless steel was invented by Harry Brearley around 1912 in Sheffield, England. He was trying to eliminate erosion in gun barrels.
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PROPERTIES
- High corrosion resistance (Chromium)
- Self-repairing layer of chromium oxide
- High strength and hardness (Iron/Carbon)
- High toughness (Nickel)
- Good luster (Chromium)
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1. The Gateway Arch is entirely covered in stainless steel.
2. It can remove bad smells from your hands.
3. Chromium in the steel reacts with oxygen and forms a tiny layer of chromium oxide that repairs scratches and prevents the steel from rusting.
4. It's used in everything from jewelry to handguns.
1. The Gateway Arch is entirely covered in stainless steel.
2. It's not fully stain-proof.
3. 100% Recyclable.
4. Chromium in the steel reacts with oxygen and forms a tiny layer of chromium oxide that repairs scratches and prevents the steel from rusting.
5. It's used in everything from jewelry to handguns.
2. It's not fully stain-proof.
3. 100% Recyclable.
4. Chromium in the steel reacts with oxygen and forms a tiny layer of chromium oxide that repairs scratches and prevents the steel from rusting.
5. It's used in everything from jewelry to handguns.
Photo by extranoise
