What does 18kcp mean?

18kcp refers to a ring plated with 18K gold.

Actually, 18kcp is not correct, but 18KGP. 18kgp is a kind of gold forging, which is a metal process of forging 18kgp gold foil on the surface of phosphor copper or other metal products at high temperature. It is somewhat similar to the gold plating process. In order to distinguish it from other alloys, the symbol of 18kgp gold will appear on forged gold.

In order to enhance the strength and toughness of 18kgp gold, some metals such as silver, copper and zinc will be added. It can not only make 18kgp gold look beautiful and noble, but also make up for the shortcomings of 18kgp gold. 18k gold is an alloy with a gold content of at least 75%, that is, an alloy with a gold content of 18/24, and the remaining 25% is other precious metals, including platinum, nickel, silver and palladium.

18kcp gold card introduction

18KGP is the symbol of alloy imitation jewelry. They are composed of two symbols, 18K is a symbol, and k stands for gold content, that is, gold content. The relationship between k number and gold content is: Au wt% = K/24× 100%, and the national standard GB 1 1887-89 stipulates that the gold content per k is 4.65433.

GP is the abbreviation of English goldplain, commonly known as forging gold in business. This symbol means that the product is mainly made of phosphorus and copper in general metals by high temperature forging, and then covered with gold plating, which can be divided into two types according to the thickness of gold plating. The thickness of gold plating is about 1mi, which is the unit of gold layer thickness stipulated by international standards, and the gold coating is about 3mi.