9 16 gold is also 22K gold, and the number followed by the metal unit represents the metal purity ratio, AU is gold, and 9 16 means 9 1.6% gold+other precious metals.
K gold is an alloy formed by adding a small amount of other metals to gold according to a certain proportion. According to the gold content, it is divided into 24K gold, 22K gold, 18K gold and 14K gold. According to international standards, gold with a theoretical purity of 100% is called 24K gold, and the gold content of 10K is about 4. 166%, the gold content of 222K is about 9 1.6%, and the gold content is marked as AU9 16.
Gold au9 16 has a hard texture and good ductility. Suitable for designing and making all kinds of light and three-dimensional jewelry styles. Even if it is the same size as pure gold jewelry, the weight of gold au9 16 is almost half that of pure gold, and the structure is very strong and not easy to deform.
As a precious metal, gold has high chemical stability and is not easy to react with other substances. Therefore, as jewelry, gold is very suitable for daily wear and is not easy to be oxidized and discolored. The physical properties of gold are high density, heavy touch, strong ductility and soft hardness.
The maintenance of gold ornaments is very important. Avoid pulling hard and contact with cosmetics such as toilet water. Otherwise, it is easy to change color. You can gently brush it with detergent in warm water, then rinse it with clear water and wipe it clean. Pay attention to the weight and style of jewelry, whether it suits you. When you try it on, please dress lightly and don't pull. If it is a necklace, you can match it with gems, rings and bracelets according to your own preferences, and pay attention to whether the size is appropriate when trying it on.