DIN 17745 Grade NiFe44

Want to keep this datasheet? Save it now in your required format


The soft-magnetic material NiFe44 with the material number 2.4420 distinguishes itself by the highest initial and maximum permeability as well as by high saturation magnetization. Among other things, it is applied for measuring transformers and totalizing current transformers for fault-current circuit breakers.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

See where falls on the material property chart for against in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.





23.0 °C

8.1 - 8.2 g/cm³

Show Material materials with Density of 8.1 - 8.2 g/cm³

Typical for Nickel Iron Alloy



Elastic modulus

23.0 °C

137 - 145 GPa

Show Material materials with Elastic modulus of 137 - 145 GPa

Typical for Nickel Iron Alloy

Poisson's ratio

23.0 °C

0.28 [-]

Show Material materials with Poisson's ratio of 0.28 [-]

Typical for Nickel Iron Alloy



Coefficient of thermal expansion

23.0 °C

7.6E-6 - 1.7E-5 1/K

Show Material materials with Coefficient of thermal expansion of 7.6E-6 - 1.7E-5 1/K

Typical for Nickel Iron Alloy

Melting point

1450 °C

Show Material materials with Melting point of 1450 °C

Typical for Nickel Iron Alloy

Specific heat capacity

23.0 °C

285 - 545 J/(kg·K)

Show Material materials with Specific heat capacity of 285 - 545 J/(kg·K)

Typical for Nickel Iron Alloy

Thermal conductivity

23.0 °C

8 - 35 W/(m·K)

Show Material materials with Thermal conductivity of 8 - 35 W/(m·K)

Typical for Nickel Iron Alloy

Chemical properties



0.05 %

Show Material materials with Carbon of 0.05 %


42 - 46 %

Show Material materials with Iron of 42 - 46 %


0.5 %

Show Material materials with Manganese of 0.5 %


53.15 %

Show Material materials with Nickel of 53.15 %


0.3 %

Show Material materials with Silicon of 0.3 %