Advantages and disadvantages of white copper
Advantages and Disadvantages
Adding nickel to pure copper can significantly improve strength, corrosion resistance, hardness, electrical resistance and thermoelectric properties, and reduce the temperature coefficient of resistivity. Therefore, white copper has exceptionally good mechanical and physical properties compared to other copper alloys. It has good ductility, high hardness, beautiful color, corrosion resistance, and deep drawing properties. It is widely used in shipbuilding, petrochemical industry, electrical appliances, instruments, medical equipment, In daily necessities, handicrafts and other fields, it is also an important resistor and thermocouple alloy. The disadvantage of white copper is that the main added element-nickel is a scarce strategic material and is relatively expensive.
price
The difference between white copper, Tibetan silver and Miao silver is that under normal proportions, the latter two are relatively white and closer to silver in appearance. However, the color of aluminum-nickel copper under modern technology is comparable to that of Tibetan silver and Miao silver, or even whiter. It is just harder and lighter in specific gravity. There is no custom of using pure copper-nickel or even aluminum-nickel copper in the Tibetan and Miaoyin areas. It is known that only some merchants use it to make new rubbing molds and non-hand-held utensils (especially ritual implements and accessories). In 2008, the market price of standard cupronickel was 65,500 yuan/ton. 65.5 yuan/kg 0.065 yuan/g.
