<>Material of the nib</P>
<>There are 2 types of nib material. </P>
<>1. 18K, 14K gold<BR>As gold is very expensive it is used for high-class fountain pens. Gold never rusts or erodes, and it won't be corroded by sulfuric acid, hydrochloric acid or nitric acid contained in ink. Flexible writing touch is a characteristic of gold.</P>
<>2.Stainless steel<BR>Stainless steel has nearlest the same writing touch and strength against acids as gold. As it is very inexpensive it are used for cheaper fountain pens. </P>
<>Iridosmine is used for tips as it is the second hardest material next to the diamond and strong against wear. t preserves the writing touch of a brand new fountain pen for long time. </P>
<>Iridosmine<BR>It is alloy made of 65% of Iridium, Osmium, Ruthenium and 35% of platinum and other metals. Its molecules are very fine, harder than any other metal and it is the heaviest metal. Its hardness is next to that of diamonds! Its polished surface shines like silver and runs over the paper smoothly. With the iridium on the tip you can write 5`6 million characters. If calculated into distance it is equals to 60`70 km. Even if you write 1000 characters per day it will last for 10 years. </P>
<>14k gold is the best material for a nib<BR>the reasons are:<BR>1. Highly corrosive-resistant so it doesn't rust and lasts for many years of usage.<BR>2. The softness of 14k gold makes for flexibile writing touch.<BR>3. Iridosmine can be attached firmly without losing its strength.<BR></P>