Inv 127

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Aktualisiertes Datenblatt 2021-02-04 12:33 (ersetzt alle vorherigen Ausgaben)

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Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for materials under the trademark Kanthal^®.

Inv 127 is a nickel-iron alloy (NiFe alloy) for use at temperatures up to 600°C (1110°F). The alloys has a moderate constant thermal expansion factor up to 300°C (570°F).

Typical applications for Inv 127 are in high-temperature thermostats and thermostatic bimetal.

Chemical composition

	Ni %	Fe %
Nominal composition	40.5	Bal.

Mechanical properties

Yield strength	Tensile strength	Elongation	Hardness
R_p0.2	R_m	A
MPa	MPa	%	Hv
270	460	30	125

Physical properties

Density g/cm³	8.12
Electrical resistivity at 20°C Ω mm²/m	0.71

Coefficient of thermal expansion
Temperature °C	Thermal Expansion X10^-6 /K
30-130	3.8

Thermal conductivity
Temperature °C	100
W m^-1 K^-1	12.5

Specific heat capacity
Temperature °C	20
kJ kg^-1 K^-1	0.50

Melting point °C	1425
Magnetic properties	The material is magnetic up to approximately 530°C (the Curie point).

Inv 127

Chemical composition

Mechanical properties

Physical properties

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