Many laymen are afraid of being deceived when choosing cast bronze sculptures, so measuring the copper content of cast bronze sculptures has become the only basis for many laymen to choose bronze sculptures. This is actually a method of measuring the copper content of antiques. I must also tell you that the copper content is only one of the links, and the more important thing is the artistic value of the sculpture itself.
In fact, this is also because the sculpture industry does not have a standard requirement, so some unscrupulous manufacturers have made waste sculptures in order to reduce costs and copper content.
At present, the level of copper carving crafts made by China, the United States, Thailand, and other countries is different, which is mainly reflected in the copper content and manufacturing process.
Among the copper products made in the United States, the minimum copper content standard has reached 90%, and some of the highest-end sculptures have even reached 98%. For our Asian countries, the copper content of copper carving crafts is about 55%.
Bronze carving crafts widely exist in various parts of the world, but the production technology is not the same, the standards of copper content are different, of course, the effect is different. If the copper content of the entire copper carving craftwork is too high or even 100%, it is unrealistic. On the contrary, if the copper content is too low, various problems will occur, such as affecting the color of the finished product or being prone to corrosion.
Among those copper handicrafts with high copper purity, they have strong oxidation resistance, excellent thermal conductivity, ductility, and corrosion resistance. With these superior properties, the entire handicraft will not corrode due to long-term outdoor exposure. Of course, some patina will be formed, but not too rusty.