Category: jewelry watch gold and silver

Question:
white 18K gold band for a long time will change do?
said K White K gold and gold is a matter of do?

Answer:
white 18K gold, 18K gold is in a.

18K gold is a gold containing 75%, and then there are other metals 25%, with melting into the alloy. because 25% of the other metal composition is different, we can allow different colors of 18K gold Tempered. such as the White 8K payment is 25% of the silver-zinc and nickel co-Tempered (for example, a 25% copper, they can co-Tempered red rose 18K gold; such as plus 25% of the iron, they can co-Tempered blue 18K gold, etc.).

White 18K gold is not really silver, always slightly yellowish white. Therefore, in general before leaving the factory will be and then coated with a layer of rhodium (rhodium, which is a kind of platinum group elements, the element symbol Rh), make it bright silver. This 8K white gold and a long time, when the surface of the rhodium plating worn away where the will reveal a yellowish white, white 8K Gold color.

White K gold, but gold in the K a. K Kim, K the number of different gold content of gold cont…