The Defference in 925 Sterling Silver-filled and Silver Plated
Silver-filled
Silver-filled is a new layered metal that was introduced during the recent surge of silver prices during the recession. It is not an alloy because the metal content is not the same throughout the material. 대신에, the sterling silver is all on the surface. 실버가 채워진 것도 마찬가지입니다 5% 또는 10% sterling silver by weight fused with heat and pressure to a brass core. This metal is fairly new so it is not standardized in the US. Since silver-filled is a layered metal it cannot be cast. The silver layer is much thicker than silver plate but this is still a much lower quality product than solid sterling silver jewelry supplies and alloys. It will tarnish and it should only be soldered with precision equipment and special training. Now that the price of silver has come down from past highs the metal is less common in the market. 현재 실버로 채워진 법적으로 승인 된 품질 스탬프 표준은 없습니다.. 하지만, 일부는 스탬프를 사용합니다 .925 sf, which can be misleading.
7. 은금
This is a base metal type of silver with an extremely thin plating layer of silver applied to the surface. Even when jewelry is described as fine silver-plated, the overall silver content is a tiny fraction of a percent. Silver-plated jewelry is affordable costume jewelry. Plating can tarnish and will eventually wear off to expose the base metal underneath. Costume jewelry will not have a quality stamp but it may bear the manufacturers logo or hallmark.