Stainless Steel

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projectX

Joined
Dec 15, 2000
Messages
23
An interesting revelation ---- in 1915, stainless steels were borned as a commercial reality. Straight iron-chromium (without other elements) alloys were the first to be produced, and guess what........they were used for cutley!
 
Are you seriously stating that Iron-Chromium steels were the first steels produced?

Or do you mean that iron-chromium steels were the first 'stain-resistant' steels produced? Because that is Still true. Except for non staining (oxidizing) materials like talonite or stellite, which are not actually 'steel' at all.

Paracelsus
 
I have no problem with that revelation, most things of worth take years to develop...just think of the 'post-it'...
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I was referring to the first type of stainless steel commercially produced ---- and it was used in cutley.
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Paragivethenewguyahardtimecelsus:
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I think Mr./Ms. project X is trying to convey that in 1915 the first stainless steels were produced commercially, that these stainless steels utilized chromium but no other alloying metals (e.g., molybdenum or vanadium), and that they were used to produce knives.

Of course s/he is a little off the mark with that "no other elements," since that would imply no carbon either, but let's cut him/her a little slack (this time
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------------------
Dave

Let no one ever from henceforth say one word in any way countenancing war. It is dangerous even to speak of how here and there the individual may gain some hardship of soul by it. For war is hell, and those who institute it are criminals. Siegfried Loraine Sassoon
 
Oooooopppsss.....dsvirsky, u're rite...was off the mark for the "without other elements" thing!
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Should have made myself clearer by stating elements like Mn, Mo, Ni, etc. Bang my head against wall for forgetting that carbon is a major strengthening element in steels.
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Carbon is what makes it Steel. Carbon in just the right amounts. All the other stuff is gravy.

Chromium just messes things up for the most part. It makes Really big carbide crystals. And did you know that stainless steel in its annealed state will rust like crazy. Why would that be?

And why should anyone be surprised or amazed that stainless steel was first used for Cutlery (sic)?

If you want to play with the elements, know your stuff. But thanks for the history lesson.

Paracelsus
 
Here is some interesting Stainless Steel info found at the link below.

Harry Brearley started working on trying to increase hardness and corrosion resistance of gun barrels in 1912.
The first true stainless steel was melted on the 13th August 1913. It contained 12.8% chromium and 0.24% carbon.
The first commercially produced stainless steel, containing 0.4% carbon and 14% chromium, was manufactured in 1914 by Thomas Firth and Sons (founded 1842) and made into blades which were hardened and ground by Joseph Ibberson of George Ibberson & Co. (a cutlery family dating back to 1666).
http://www.the-ekd.co.uk/1024/uk3.htm#brearley[/url
 
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