SEW 385 Grade Ni46 Soft‑Annealed Alloy (+A) – High‑Performance Thermal Expansion Solution
The iron alloy with special thermal expansion Ni46, material number 1.3920, is used for compounds of metal and glass and for compounds of metal and ceramics, for expansion governors as well as for bimetals (according to DIN 1715). The break point temperature (temperature at which a break point in the expansion-temperature-curve occurs) is 400 degrees C. The cupping index at 1 mm thickness is 10.5 mm.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8.2 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 152 GPa | |
Elongation | 20.0 °C | 30 % | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for Nickel Steel |
Shear modulus | 23.0 °C | 76 GPa | Typical for Nickel Steel |
Tensile strength | 20.0 °C | 440 - 640 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 7.9E-6 1/K | |
150.0 °C | 7.8E-6 1/K | ||
200.0 °C | 7.7E-6 1/K | ||
300.0 °C | 7.4E-6 1/K | ||
400.0 °C | 7.3E-6 1/K | ||
500.0 °C | 8.6E-6 1/K | ||
600.0 °C | 9.7E-6 1/K | ||
Melting point | 1316 - 1595 °C | Typical for Nickel Steel | |
Specific heat capacity | 23.0 °C | 456 J/(kg·K) | Typical for Nickel Steel |
Thermal conductivity | 20.0 °C | 15 - 17 W/(m·K) | |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 5.5E-7 - 6E-7 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.05 - 0.1 % |
Manganese | 1 % |
Nickel | 45 - 47 % |
Silicon | 0.3 - 0.5 % |
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