BÖHLER P848 is an iron-48% -nickel alloy with low thermal expansion for applications in the electronics industry, for measuring instruments (e.g. measuring rulers, scales), temperature measuring instruments and temperature-dependent controls, thermostats, thermobimetals and expansion controllers up to temperatures of 450°C. The main application is in glass-metal compounds with soft lead crystal and soda-lime glasses.
The minimum coefficient of thermal expansion of BÖHLER P848 is in the range of 30 to 400°C. Above the break point at slightly above 450°C, the coefficient of expansion increases sharply and at higher temperatures reaches the values usual for austenitic materials. Good low temperature properties.
Market grade | SEL | EN |
---|---|---|
Ni 48 | 1.3922 | Ni48 |
Others |
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SEW 385 |
C | Si | Mn | Ni | |
---|---|---|---|---|
max. 0.05 | max. 0.30 | max. 0.50 | min. 46.0 |