What is 'K' gold

K gold, commonly known as Yangjin, is an internationally used name for alloy metals. Kai (K) is the purity unit of gold products. The English meaning of K is Karat, which is derived from the 'Carat' (Carat), the unit of weight for gems. Today 1 carat is equal to 200 milligrams (0.2) grams). Carats are also used to express the purity of gold. For k gold, it is commonly known as Yangjin, which is an internationally common name for alloy metals. Kai (k) is the unit of purity of gold products. The English meaning of k is karat, which is derived from the'carat' (carat), the unit of weight for gems. Today 1 carat is equal to 200 milligrams (0.2) grams). Carat is also used to express the purity of gold. In order to distinguish it from the weight of gemstones, people change carat to karat, use the first mother k as the symbol, and do not read'carat', but read'k', Chinese Read'on'. Gold and its products with k as the unit of purity are called k gold (open gold). The gold content per k is 4.1666%, the specifications of k gold, many common k gold products are 22k, 20k, 18k, 14k, and the minimum is 12k. In addition to gold, k gold contains silver and copper. K gold jewelry is often engraved with a k number. To calculate its gold content, you can multiply the k number by 4.1666%. For example, the gold content of 18k is 18×4.1666%u003d75%. There are many types of k gold at home and abroad. What is meant by gold'k' has different colors. The litmus test must be carried out during identification. In addition, there are currently some non-yellow k gold jewelry on the market that are marked with the word K, such as kp, kf, etc., where p is the abbreviation of plating, meaning gold plating; f is the abbreviation of filling in English, meaning imitation gold . If the non-gold jewelry is marked with 14kp, it means that the surface of the jewelry is plated with 14k gold; if the jewelry is marked with 14kf, it means that the surface coating of the jewelry is equivalent to 14k gold and should not be treated as k gold mark. Previous: Platinum and K Platinum Next: What is 18K gold or 18K alloy