Stainless Steel
Suzzanne Klinga
Percentage of Material (range)
Nickel %3.5-22.)
Chromium %16.0-26.0
Carbon %.15-.2
Manganese %5.5-2.0
Silicon %1.0
Nitrogen %.25-0
http://www.sv.vt.edu/classes/MSE2094_NoteBook/96ClassProj/examples/nicrfe.html
How it was Invented
Invented by Elwood Haynes in 1911 and patented in 1919 when he wanted to develop a steel alloy that would resist corrosion.
How It's Made Stainless Steel
How it is Manufactured
Usually they recycle old stainless steel, or steel and melt it in a furnace with chrome and nickel. Then move it to a refining furnace while pipes in the refining furnace add argon and oxygen gas to convert some of the impurities into gas. Then its poured out into a long piece of steel, cooled a bit then cut into slabs. Then its reheated and power washed to get dirt that has collected on the surface off and run through rollers to flatten the slab. The still hot slab is then rolled into a coil on a spool. The coiled steel goes through an acid wash to get off access scale on the surface then its left to cool.
Cost Of Stainless Steel
24 gauge
4x10"
is $110.00
Physical Properties of Stainless Steel
- It's a solid (but malleable)
- Solid silver- grey metallic color
- Relative Density is 7.86 D
http://www.northamericanstainless.com/wp-content/themes/northamericanstainless/pdf/NAS_MSDS.pdf
Chemical Properties of Stainless Steel
Stainless Steel Purposes
Stainless steel is used as a not corrosive steel for many products including scissors, duct work, and razors.
304 Composition
a variation of stainless steel
316 Composition
a variation of stainless steel
Composition
a variation of stainless steel