METAL WIRE M30 ALLOY (Cu77Ni23)
METAL WIRE M30 ALLOY (Cu77Ni23)
Analogue: CuNi23, NC30, Curpothal30
The М30 alloy is a copper-nickel alloy (Cu77Ni23 alloy) with low resistivity in use at temperatures up to 300 ° С.
The M30 alloy is commonly used in the manufacture of heating cables, fuses, shunts, resistors and various types of controllers.
Chemical composition %
Ni | 23 | Mn | 0.5 |
Cu | Stop |
Mechanical properties (1.0mm)
Yield strength | Tensile strength | Elongation |
MPa | MPa | % |
170 | 350 | 25 |
physical properties
Density (g / cm3) | 8.9 |
Electrical resistance at 20 ° C, Ohm * m | 300 |
Temperature coefficient of resistivity （20 ℃ ~ 600） X10-5/ ℃ | <16 |
Heat conductivity coefficient 20 ℃ (WmK) | 33 |
EMF with Copper (μV / ℃) (0 ~ 100) | -34 |
Thermal expansion coefficient
Temperature | Thermal Expansion * 10-6/K |
20 - 400 ℃ | |
17.5 | |
Specific heat
Temperature | 20 ℃ |
J / gk | |
0.380 | |
Melting point (℃) |
1150 |
Maximum continuous working air temperature (℃) |
300 |
Magnetic property | nonmagnetic |
Types of goods
Name | Product type | dimensions | |
M30W | Wire | D = 0.03mm ~ 8mm | |
M30R | Strip | W = 0.4 ~ 40mm | W = 0.4 ~ 40mm |
M30S | Tape | W = 8 ~ 200mm | W = 8 ~ 200mm |
M30F | Foil | W = 6 ~ 120mm | W = 6 ~ 120mm |
M30B | Bar | D = 8 ~ 100mm | D = 8 ~ 100mm |