HQ / Seoul
|Coefficient of expansion [℃ x 10-6]||12.9|
|Tensile strength [PSI x 103]||135|
|Yield strength intensity [PSI x 103]||21|
|Hardness (Rockwell B)||58|
|Elongation (/2 inch)||38%|
|Melting point||2650°F / 1454℃|
|Thermal conductivity [Btu· inch/ft2/hr/˚F]||240|
|Minimum operating temp.||4°K|
|Electric resistance [μΩ· mm]||620|
|Saturation magnetic flux density [Gauss]||7,700|
|Curie temp||860°F / 460℃|
|Saturation magnetic flux density||15,000Gauss||7,700Gauss|
|Coercivity||0.1 Oe||0.008~0.02 Oe|
|Maximum permeability (Dc)||100,000||300,000|
It is most effective to enclose the source or affected parts of the magnetic field shield to completely enclose it, but the shielding effect can be obtained even if only the specific part is covered or the cover type is installed as shown above.
When wrapped in a cylindrical shape or made of a rectangular housing, care should be taken not to create a gap between the joint and between the body and the lid.
* Note: Due to inherent Permalloy properties, loss of properties may result if direct impact is applied during processing or transport.
Cover the magnetic field parts by permalloy foil, or protect the sensor from external magnetic fields by inserting the sensor control in the permalloy case.
|SEM / E-BEAM||Scanning lines from influence of external magnetic wave||2mG|
|TEM||The higher the magnification, the more sensitive to magnetic wave||0.2mG~1mG|
|SQUID||Biomedical ultra-weak self-diagnosis device|
|MRI||Malfunction because of external D.C magnetic wave||2mG|