Description

• Cupronickel is a copper-based alloy with nickel because the main additive element. It is silver-white with steel luster, hence the call Cupronickel. Copper and nickel can be infinitely dissolved with one another to form a continuous strong solution, that is, regardless of the ratio of each other, it is constantly an α-single-phase alloy. When nickel is melted into crimson copper and the content exceeds 16%, the color of the resultant alloy becomes as white as silver. The greater the nickel content, the whiter the color. The nickel content in cupronickel is mostly 25%. White copper (electrical white copper) for precision resistance alloys has good thermoelectric properties. BMn 3-12 manganese copper, BMn 40-1 constantan, BMn 43-0 test copper, and new constantan with manganese rather than nickel (also referred to as nickel-free manganese cupronickel, containing 10% manganese, 2% aluminum, Iron 1~1%) is manganese cupronickel with varied manganese content. Manganese cupronickel is a precision resistance alloy. This variety of alloy has high resistivity and low temperature coefficient of resistivity, and is suitable for making steady resistance substances and precision resistance components. It is used to fabricate precision electric instruments, rheostats, meters, precision resistors, stress gauges, etc. Constantan and Kaotong have high thermoelectric potential and may also be used as thermocouples and reimbursement wires.

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