錳銅合金（6J12、 6J8、6J13， Manganin）
主要用途
錳銅 6J8、 6J12、 6J13 具有很小的電阻、溫度系數和對銅的電熱勢低及電阻的高穩定性，具有較高的電阻率，是一種較為優越的精密電阻合金材料。廣泛應用于精密地測量電壓、電流、電阻等，電橋和電位差計以及指示這些量的電流表、電壓表等電氣儀表上以及測定、指示、調節和記錄等儀器中的繞線電阻器、分流電阻器和滑線電阻器等。此外，更適合用于具有一定標稱電阻值并作為基準用的標準電阻器上。另外錳銅、銅鎳也是低溫度加熱元件的發熱絲。如，空調火車的客車箱加溫、家用加熱電器等。
● 供應狀態一般為軟態，也可以根據用戶需要供應硬態或半硬態;
● 供應規格也可以根據要求供應特殊的外形、尺寸的（板、帶、棒、塊）合金材料.
化學成分（%）
|
Mn |
Ni |
Fe |
Si |
Cu |
S |
C |
P |
|
11-13 |
2-3 |
＜0.5 |
＜0.1 |
余量 |
＜0.020 |
＜0.05 |
＜0.005 |
重要性能參數
電 阻 率ρ 0.47μΩ·m
電阻溫度系數 α20 ±10×10-6／℃-1
線 膨 脹 系數 18.1×10-6／℃-1 （20～100℃）
密 度 8.4 g∕cm3
熔 點 960℃
抗 拉 強 度 490～539mpa
延 伸 率 25%
對銅平均熱電動勢率 Ёcu≤1 uV／℃
最高允許工作溫度 300℃ Manganese copper alloy (6j12, 6j8, 6j13, manganin)
Main uses
Manganin 6j8, 6j12 and 6j13 are superior precision resistance alloy materials because of their small resistance, temperature coefficient, low electrothermal potential to copper, high resistance stability and high resistivity. It is widely used in precision measurement of voltage, current and resistance, bridge and potentiometer, ammeter, voltmeter and other electrical instruments indicating these quantities, as well as winding resistor, shunt resistor and sliding resistor in measuring, indicating, regulating and recording instruments. In addition, it is more suitable for the standard resistor with a certain nominal resistance value and used as a reference. In addition, manganese copper and copper nickel are also heating wires of low temperature heating elements. For example, air-conditioned train bus box heating, household heating appliances.
The supply status is generally soft, or hard or semi hard according to the needs of users;
The supply specification can also supply special shape and size (plate, strip, bar, block) alloy materials according to the requirements
Chemical composition (%)
Mn
Ni
Fe
Si
Cu
S
C
P
11-13
2-3
＜0.5
＜0.1
allowance
＜0.020
＜0.05
＜0.005
Important performance parameters
Resistivity ρ 0.47 μ Ω· M
Temperature coefficient of resistance α 20 ± 10 × 10-6 / ℃ - 1
The coefficient of linear expansion is 18.1 × 10-6 / ℃ - 1 (20-100 ℃)
Density 8.4 g / cm3
Melting point 960 ℃
Tensile strength 490 ～ 539mpa
Elongation 25%
For copper, the average thermoelectric EMF rate is Cu ≤ 1 UV / ℃
The maximum allowable working temperature is 300 ℃
