The AU750 is 18K gold. AU is the chemical element symbol of gold. The 750 indicates that the gold content is 75%, and the remaining 25%are other precious metals. 18K gold is a kind of gold jewelry with low cost and more comfortable wearing. The calculation method of K gold is to divide pure gold into 24 copies, 24K gold is foot gold, but in reality, it is impossible to have 100%gold. Therefore, gold with a prescribed content of 99.6%and above can be called 24K gold.
K gold refers to the alloy with gold and other metals. Its English word is karatgold, so it is referred to as K gold for short. K gold is rich in color, including white K gold, yellow K gold, rose gold, black gold and so on. "K Gold" is the natural color of K gold itself, showing yellow; "K platinum" is a white alloy that adds gold or nickel, showing white; if copper is added, rose gold is present.
The country stipulates that gold jewelry below 9K cannot be called gold jewelry. Some gold jewelery has a text mark, which requires: foot gold-not less than 99%, and thousands of gold-gold content greater than 99.9%.
The regulations on gold product marks and logo cards are generally required to have production enterprise code, material name, content marks, etc., and unqualified products are unqualified. The same is true internationally. But for some particularly small products, they are also allowed not to mark. 18K gold marks are generally the words AU750, 18K or G750. AU750 is the same as 18K gold. AU750 is the same as 18K gold. They all refer to gold with a gold content of 75%, which is made of 75%gold and 25%of other metals. The AU750 is often used to make jewelry. This metal can show a variety of colors such as white, pale yellow, pink, etc. At the same time, it has the characteristics of strong ductility, stable nature, and high hardness. Au750 why the color was faded because the AU750 jewelry reacts with the sweat secreted by us, which causes the AU750 to change color. We all know that the AU750 is a alloy, which is composed of 75%gold and copper, aluminum, silver and other metal elements. In addition to water, the sweat we secrete contains other substances such as uric acid, and these substances accumulate over time. It will slowly react with 25%of other metal elements contained in the AU750, so that the AU750 will slowly change color; in addition, when we wear jewelry jewelry of AU750 for a long time, it is easy to form it on the surface for forming it. The dark brown dirt looks like a discoloration. Au750 how to distinguish between true and false identification AU750's true and false can measure hardness. AU750 is made of 75%gold and 25%of other metals. Its hardness is higher than pure gold, and the toughness and ductility are better. The AU750 that other materials will be greater and the texture will be more crispy. The AU750 can also be identified by watching steel printing. my country stipulates that all precious metal materials need to have steel prints with the corresponding material and purity. The jewelry of the AU750 material generally has steel prints such as "AU750" and "750" without steel printing. AU750 must be fake. AU750 can also identify authenticity by watching gloss. The real AU750 jewelry technology is fine, the structure is delicate and tight, and the gloss is bright. The fake AU750 jewelry production process is rough, with loose structure and relatively dullness.
The AU750 is 18K gold. AU is the chemical element symbol of gold. The 750 indicates that the gold content is 75%, and the remaining 25%are other precious metals. 18K gold is a kind of gold jewelry with low cost and more comfortable wearing. The calculation method of K gold is to divide pure gold into 24 copies, 24K gold is foot gold, but in reality, it is impossible to have 100%gold. Therefore, gold with a prescribed content of 99.6%and above can be called 24K gold.
K gold refers to the alloy with gold and other metals. Its English word is karatgold, so it is referred to as K gold for short. K gold is rich in color, including white K gold, yellow K gold, rose gold, black gold and so on. "K Gold" is the natural color of K gold itself, showing yellow; "K platinum" is a white alloy that adds gold or nickel, showing white; if copper is added, rose gold is present.
The country stipulates that gold jewelry below 9K cannot be called gold jewelry. Some gold jewelery has a text mark, which requires: foot gold-not less than 99%, and thousands of gold-gold content greater than 99.9%.
The regulations on gold product marks and logo cards are generally required to have production enterprise code, material name, content marks, etc., and unqualified products are unqualified. The same is true internationally. But for some particularly small products, they are also allowed not to mark. 18K gold marks are generally the words AU750, 18K or G750.
AU750 is the same as 18K gold. AU750 is the same as 18K gold. They all refer to gold with a gold content of 75%, which is made of 75%gold and 25%of other metals. The AU750 is often used to make jewelry. This metal can show a variety of colors such as white, pale yellow, pink, etc. At the same time, it has the characteristics of strong ductility, stable nature, and high hardness.
Au750 why the color was faded because the AU750 jewelry reacts with the sweat secreted by us, which causes the AU750 to change color. We all know that the AU750 is a alloy, which is composed of 75%gold and copper, aluminum, silver and other metal elements. In addition to water, the sweat we secrete contains other substances such as uric acid, and these substances accumulate over time. It will slowly react with 25%of other metal elements contained in the AU750, so that the AU750 will slowly change color; in addition, when we wear jewelry jewelry of AU750 for a long time, it is easy to form it on the surface for forming it. The dark brown dirt looks like a discoloration.
Au750 how to distinguish between true and false identification AU750's true and false can measure hardness. AU750 is made of 75%gold and 25%of other metals. Its hardness is higher than pure gold, and the toughness and ductility are better. The AU750 that other materials will be greater and the texture will be more crispy. The AU750 can also be identified by watching steel printing. my country stipulates that all precious metal materials need to have steel prints with the corresponding material and purity. The jewelry of the AU750 material generally has steel prints such as "AU750" and "750" without steel printing. AU750 must be fake. AU750 can also identify authenticity by watching gloss. The real AU750 jewelry technology is fine, the structure is delicate and tight, and the gloss is bright. The fake AU750 jewelry production process is rough, with loose structure and relatively dullness.