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白铜(英语:Cupronickel),又稱銅鎳合金,是以镍为主要元素的铜鎳鋅合金,顏色為銀白色,具有銀色的外觀但不包含銀的元素,一般的成份是60%的銅、20%的鎳和20%的鋅。镍含量大约在10%至30%之间。镍含量更高的合金则被称为康銅。
白铜最早产于云南古堂琅县[1]。后来在中亚的大夏曾用其铸造钱币,被认为是中国和大夏的交流产物[2]。
由於白铜的强度堅硬和可塑性高、抗腐蚀性较好、电阻率较高、不生鏽等性質,主要用于裝飾品、給水器具、仪器器械和货币的制造[3]。
This article uses material from the Wikipedia article "白铜", which is released under the Creative Commons Attribution-Share-Alike License 3.0. There is a list of all authors in Wikipedia
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