METAL WIRE M40 ALLOY (Cu66Ni34)

METAL WIRE M40 ALLOY (Cu66Ni34)

METAL WIRE M40 ALLOY (Cu66Ni34)

Analogue: CuNi34, NC40.

The М40 alloy is a copper-nickel alloy (Cu66Ni34 alloy) with low resistivity in use at temperatures up to 350 ° С.

Alloy M40 - is a low-voltage heating alloy. This is one of the main materials of low-voltage electrical products. It is widely used in the manufacture of low-voltage switches, electric blankets, thermal overload relays and other low-voltage electrical products.

Chemical composition %

Ni

34

Mn

0.5

Cu

Stop

Mechanical properties (1.0mm)

Yield strength

Tensile strength

Elongation

MPa

MPa

%

220

400

25

physical properties

Density (g / cm3)

8.9

Electrical resistance at 20 ° C, Ohm * m

0.35

Temperature coefficient of resistivity

(20 ℃ ~ 600) X10-5/ ℃

-0

Heat conductivity coefficient 20 ℃ (WmK)

25

Thermal expansion coefficient

Temperature

Thermal Expansion * 10-6/K

20 - 400 ℃

16


Specific heat

Temperature

20 ℃

J / gk

0.4

Melting point (℃)

1180

Maximum continuous working air temperature (℃)

350

Magnetic property

nonmagnetic

Types of goods

Name

Product type

dimensions

M40W

Wire

D = 0.03mm ~ 8mm

M40R

Strip

W = 0.4 ~ 40mm

W = 0.4 ~ 40mm

M40S

Tape

W = 8 ~ 200mm

W = 8 ~ 200mm

M40F

Foil

W = 6 ~ 120mm

W = 6 ~ 120mm

M40B

Bar

D = 8 ~ 100mm

D = 8 ~ 100mm