Spectacle Frame Materials - METALS

"Spectacle Frame Materials
Even the leading designers use a number of materials in the design and manufacture of modern day spectacle frames
As an aid in your choice, the material descriptions and frame descriptions below are brief, and as far as possible, are in lay-mans terms
Spectacle frame materials fall into 2 main categories; metals and plastics.
Metals:

Pure Titanium frames are ultra light, nickel free, hypo-non-allergenic and have excellent tensile strength. The material is used to create the perfect equilibrium between strength and comfort.
Titanium alloy frames, including memory metal frames, are ultra light, have superb memory shape retention and are extremely durable. These frames give a peerless tensile strength and will perform and excel in extreme circumstances.
Stainless steel - lightweight, strong, durable - is often used to create ultra thin frames due to its excellent tensile strength and durability.
Monel ( blended alloy) is used to manufacture most of the frames available in the world today. In its best form this malleable material is strong and durable, and, though it does contain some nickel (many cheaper frames contain significant levels nickel which can cause skin irritation), the plating found in the better quality frames give a superb barrier between the wearer and the base metal.