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The nib has always been one of the most important parts of a fountain pen, and plays the final role of bringing the ink on paper. Fountain pens nibs derive from [[dipping nib]]s; the main difference is that being fountain pens much more expensive objects with their nibs continuously in contact with the ink, these were traditionally made of gold to have greater resistance to corrosion of the inks of the time (with different carats, although the most common remains the 14 carat, followed by the 18 carat).  
 
The nib has always been one of the most important parts of a fountain pen, and plays the final role of bringing the ink on paper. Fountain pens nibs derive from [[dipping nib]]s; the main difference is that being fountain pens much more expensive objects with their nibs continuously in contact with the ink, these were traditionally made of gold to have greater resistance to corrosion of the inks of the time (with different carats, although the most common remains the 14 carat, followed by the 18 carat).  
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[[File:AikinLambertNib.jpg|thumb|An [[Aikin Lambert]] nib]]
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[[File:AikinLambert-CapitolCabinet-Nib.jpg|thumb|An [[Aikin Lambert]] nib]]
    
When with the evolution of technology it became possible to create steel nibs resistant to corrosion, the biggest obstacle to their spread became that of marketing, and still today we tend to think of a pen with a gold nib as of higher value, although on the technical level this is probably lower. Gold, although strengthened by the metals added to the alloys used to produce nibs, is a very malleable metal, and for this reason a gold nib is subject to bend permanently much more easily than any steel nib and in general ends up being much less robust.
 
When with the evolution of technology it became possible to create steel nibs resistant to corrosion, the biggest obstacle to their spread became that of marketing, and still today we tend to think of a pen with a gold nib as of higher value, although on the technical level this is probably lower. Gold, although strengthened by the metals added to the alloys used to produce nibs, is a very malleable metal, and for this reason a gold nib is subject to bend permanently much more easily than any steel nib and in general ends up being much less robust.
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A "gold" nib, however, cannot be entirely composed of gold (ie 24 carats), as mentioned this material is extremely malleable,<ref>malleable (see [https://simple.wikipedia.org/wiki/Malleability this Wikipedia entry]) is meaning a very soft material, easy to deform without losing its mechanical properties, in essence the exact opposite of strength and flexibility, gold is one of the most malleable materials that exist.</ref> so it is generally strengthened by mixing it as with other metals to obtain 14 carat alloys, which are the most common, or 18 carat, used to give greater value to the pen, but generally less robust. The ancient pens are however for the most part equipped with 14 carat gold nibs, the 18 carats have been introduced only where, as in France, an object with a lower carat could not be qualified as gold for legal reasons.
A "gold" nib, however, cannot be entirely composed of gold (ie 24 carats), as mentioned this material is extremely malleable, <ref name=malleabilita_oro>malleable (see [http://it.wikipedia.org/wiki/Malleabilit%C3%A0]) is meaning a very soft material, easy to deform without losing its mechanical properties, in essence the exact opposite of strength and flexibility, gold is one of the most malleable materials that exist.</ref> so it is generally strengthened by mixing it as with other metals to obtain 14 carat alloys, which are the most common, or 18 carat, used to give greater value to the pen, but generally less robust. The ancient pens are however for the most part equipped with 14 carat gold nibs, the 18 carats have been introduced only where, as in France, an object with a lower carat could not be qualified as gold for legal reasons.
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In the period of the second world war, however, with the restrictions caused by the war, the use of gold for nibs was greatly reduced and in some countries, such as Germany and Japan, even explicitly prohibited. At that time there was a flourishing of various steel alloys, often renamed, especially in Italy, with imaginative and high-sounding names, and experimentation with alternative materials, such as palladium, which now seem to be back in fashion. But the use of steel for nibs can certainly not originate from the constraints of war. In fact, it was adopted by some producers, in particular those oriented to the lower end of the market, well before the war and for simpler economic reasons. Even in that case, however, they often tried to "embellish" the metal with a gilding.  
 
In the period of the second world war, however, with the restrictions caused by the war, the use of gold for nibs was greatly reduced and in some countries, such as Germany and Japan, even explicitly prohibited. At that time there was a flourishing of various steel alloys, often renamed, especially in Italy, with imaginative and high-sounding names, and experimentation with alternative materials, such as palladium, which now seem to be back in fashion. But the use of steel for nibs can certainly not originate from the constraints of war. In fact, it was adopted by some producers, in particular those oriented to the lower end of the market, well before the war and for simpler economic reasons. Even in that case, however, they often tried to "embellish" the metal with a gilding.  

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