Grade Chart | ||||||
China | International Standard | United States | Japan | France | United Kingdom | Germany |
BMn3-12 | MHMц13-12 | CuMn12Ni | ||||
BMn40-1-5 | MHMц40-1.5 | |||||
BMn43-0.5 | MHMц43-1.5 | CuNi44 | ||||
Chemical Composition | |||||||||||||
Alloy | Ni+Co | Fe | Mn | Zn | Al | Si | Mg | Pb | S | C | P | Cu | Impurities |
BMn3-12 | 2.0-3.5 | 0.20-0.50 | 11.5-13.5 | 0.2 | 0.1 0.3 | 0.03 | 0.02 | 0.02 | 0.05 | 0.005 | remainder | 0.5 | |
BMn40-1.5 | 39.0-41.0 | 0.50 | 1.0-2.0 | 0.1 | 0.05 | 0.005 | 0.02 | 0.10 | 0.005 | remainder | 0.9 | ||
BMn43-0.5 | 42.0-44.0 | 0.15 | 0.10-1.0 | 0.1 | 0.05 | 0.002 | 0.01 | 0.10 | 0.002 | remainder | 0.6 | ||
Physical Properties | Alloy | |
BMn3-12 | BMn40-1.5 | |
Liquidus/℃ | 1011.2 | |
Solidus/℃ | 961 | 1261.7 |
Density/kg·m-3 | 8400 | 8900 |
18℃ Specific Heat/J·（kg·K）-1 | 409.5 | 410.3 |
100℃ Coefficient of Linear Expansion/℃-1 | 16x10-6 | 14.4x10-6 |
Heat Conductivity（20℃）/W·（m·K）-1 | 21.8 | 20.9 |
Specific Resistance（20℃）/μΩ·m | 0.435 | 0.480 |
Temperature Coefficient of Resistance/℃-1 | 3x10-5 | 2x10-5（20-100℃） |
When they pair up and copper thermoelectric potential per 1 ℃/mV | 1 | Electrode potential 0.35mV |
Breakdown voltage of diameter 0.03-0.54mm wire./V | 400 | |
Elasticity Modulus/GPa | 126.5 | 166 |
Physical Properties | Alloy |
BMn43-0.5 | |
Liquidus/℃ | 1291.8 |
Solidus/℃ | 1221.7 |
Density/kg·m-3 | 8900 |
20℃ Coefficient of Linear Expansion/℃-1 | 14x10-6 |
150℃ Coefficient of Linear Expansion/℃-1 | 2 |
500℃ Coefficient of Linear Expansion/℃-1 | 8 |
Heat Conductivity（20℃）/W·（m·K）-1 | 24.4 |
0 Specific Resistance（20℃）/μΩ·m | 0.49-0.50(soft) |
0 Temperature Coefficient of Resistance/℃-1 | -0.00014 |
25℃ thermoelectric potential to pair with platinum/mV | 1 |
Elasticity Modulus/GPa | 95(soft) |
120(hard) |
BMn3-12 Aluminum Bronze Plate Characteristics:
The copper nickel alloy, commonly known as manganese copper, is characterized by high resistivity and low resistance temperature coefficient, high resistance and low conductivity.
BMn40-1.5 Aluminum Bronze Plate Characteristics:
As the electrician copper and nickel alloy, usually referred to as the constantan, has little change with temperature and high resistivity and high thermoelectric emfs, good heat resistance and corrosion resistance, and has high mechanical properties and deformation capacity
BMn43-0.5 Aluminum Bronze Plate Characteristics:
For electrician copper nickel alloy, often referred to as copper, its characteristic is, in the electrician copper nickel alloy has the largest temperature difference electromotive force, and has high resistivity and low temperature coefficient of resistance, heat resistance and corrosion resistance are also better than BMn401.5, at the same time with high mechanical properties and deformation ability.
BMn3-12 Aluminum Bronze Plate Application:
It is widely used in the manufacturing of electrical resistance instruments and precision electrical measuring instruments.
BMn40-1.5 Aluminum Bronze Plate Application:
For the fabrication of thermocouple (below 900 ℃) good material, working temperature below 500 ℃ heater (electric resistance wire) and the rheostat.
BMn43-0.5 Aluminum Bronze Plate Application:
Widely used in high temperature measuring copper anode and the working temperature of conductive and thermocouple as compensation does not exceed 600 ℃ heating apparatus.
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