锰铜合金（6J12、 6J8、6J13， Manganin）
主要用途
锰铜 6J8、 6J12、 6J13 具有很小的电阻、温度系数和对铜的电热势低及电阻的高稳定性，具有较高的电阻率，是一种较为优越的精密电阻合金材料。广泛应用于精密地测量电压、电流、电阻等，电桥和电位差计以及指示这些量的电流表、电压表等电气仪表上以及测定、指示、调节和记录等仪器中的绕线电阻器、分流电阻器和滑线电阻器等。此外，更适合用于具有一定标称电阻值并作为基准用的标准电阻器上。另外锰铜、铜镍也是低温度加热元件的发热丝。如，空调火车的客车箱加温、家用加热电器等。
● 供应状态一般为软态，也可以根据用户需要供应硬态或半硬态;
● 供应规格也可以根据要求供应特殊的外形、尺寸的（板、带、棒、块）合金材料.
化学成分（%）
|
Mn |
Ni |
Fe |
Si |
Cu |
S |
C |
P |
|
11-13 |
2-3 |
＜0.5 |
＜0.1 |
余量 |
＜0.020 |
＜0.05 |
＜0.005 |
重要性能参数
电 阻 率ρ 0.47μΩ·m
电阻温度系数 α20 ±10×10-6／℃-1
线 膨 胀 系数 18.1×10-6／℃-1 （20～100℃）
密 度 8.4 g∕cm3
熔 点 960℃
抗 拉 强 度 490～539mpa
延 伸 率 25%
对铜平均热电动势率 Ёcu≤1 uV／℃
最高允许工作温度 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 ℃
