Metal Alloys in Eyewear

There is a wide range in functionality and innovative purpose allowed within the metals used for eyeglasses and sunglasses. Through the years the evolution of metals has evolved to serve many purposes, which include anti-allergic qualities, flexible alloys and many more. Below are some characteristics of the most commonly used metals

Common Metals

► Stainless steal Base metal 1363C/ 2550F
► Brass Base metal 900-940 C/ 1652-1724F
► Copper Base metal 1083C/ 1981F
► Lighter than a complete frames

Flexible Metals - (maybe used as anti-allergic materials)

► Titanium (Alloy) Base metal 1795C/ 3263F
► Nickel (Alloy) Base metal 1452C/ 2646F
► Beryllium (Alloy) May be Toxic - Base metal 1278C

Exotic Metals - (maybe used as anti-allergic materials)

► Titanium (beta, etc.) Base metal 1795C/ 3263F
► Gold precious metal 1063C/ 1946F
► Silver precious metal 961C/ 1762F
► Platinum precious metal 1768C/3215F

Plastics in Eyeglasses and Sunglasses

Some plastics may become crystallized and brittle with time and extreme elements. For the most part plastic materials may be used as an alternative to most metals as an anti-allergic material. A comfort level is also a notable characteristic of plastic frames; especially

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