What does 925 silver mean?

925 silver actually refers to silver products containing 92.5% of silver. 925 represents the purity of silver. This is the minimum purity required for silverware, just as the purity of 999 gold. Because the silver is too soft and easy to oxidize, since Tiffany started 925 silver, 925 silver has been internationally recognized as the minimum standard for sterling silver. Silver is made of 7.5% alloy, which gives silver the ideal hardness, brightness and luster, and oxidation resistance. It can also be inlaid with various gemstones. From then on, silver jewelry has a stylish color with a bright color, a chic style and exquisite craftsmanship. , quickly swept the world.

A precious metal composed of chemical element silver (Ag), pure white color and strong metallic luster. It is chemically stable, but it is easy to combine with sulfur to form silver sulfide, which causes the surface of the silverware to become black and colorless. The relative density is 10.49. Hardness 2.5 to 3. Melting point 961.93 ° C. Strongly ductile (after gold) and a good conductor of heat and electricity. Silver is a customary metal material in the jewelry industry, but because it is too soft, it is often doped with other components (copper, zinc, nickel, etc.). The standard silver has a silver content of 92.5%. In modern times, silver jewelry is often used to make cheap jewelry because it tends to become black and tarnished, and its value is significantly lower than that of gold and platinum. Silver is also widely used in industry, such as electronic components and instruments that are often made of various precision instruments using its good electrical conductivity.

925 sterling silver is the international standard silver for silver jewelry in the world. Imprint. Silver jewelry should generally be marked with the English abbreviation ("S" or "Sterling"). The imprint of standard silver is S925. The imprint of pure silver is S990. But there are also many countries that do not print on silver jewelry.

The 925 silver-plated white enamel (called platinum in the industry) is capable of delaying the yellowing and blackening of silver in the case of oxidation or vulcanization. In the industry, 925 silver without white gold plating is called "silver silver", and silver is relatively easy to oxidize in the air. A large proportion of the 925 silver products currently on the market are prime silver in order to reduce the cost.

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