The metal cheapest eyeglasses online frame is made of single metal or alloy material, which has the characteristics of being strong, beautiful, and lightweight.

The materials used for metal eyeglasses frames require a certain degree of hardness, elasticity, flexibility, wear resistance, and corrosion resistance. The metal materials used for eyeglasses frames mainly include nickel alloys, copper alloys, titanium alloys, and precious metals.

Metal cheapest eyeglasses online frames are mostly made of nickel alloy materials. Nickel alloy has good corrosion resistance and mechanical properties. Its disadvantage is that it has high hardness and weight, making it difficult to adjust.

Nickel chromium alloy was originally used as a material for dentures, but after improvement, it was used for eyeglass frames. The nickel-chromium alloy frame itself is white and can be used directly without electroplating.

Common nickel alloy materials in metal cheapest eyeglasses online frames include nickel-copper alloy and nickel-chromium alloy. Nickel copper alloy, also known as Monel alloy, is an alloy made of metallic nickel as the matrix, with the addition of other elements such as copper, iron, manganese, etc.

Monel alloy is silver white in color, with good strength, elasticity, welding tensile strength, and corrosion resistance, making it suitable for making eyeglasses frames.

Nickel chromium alloy contains nickel, chromium, silver, copper, and other trace elements. Its strength, elasticity, and corrosion resistance are better than Monel alloy, and it is used in the production of high-end eyeglasses frames.

Stainless steel is also an alloy material containing iron, chromium, and nickel, belonging to a type of nickel-chromium alloy. Its main added element is chromium, which has corrosion resistance, and high elasticity, but slightly lower strength, machinability, and weldability. It is commonly used as a side wire and screw.