SOFT MAGNETIC ALLOYS |
GRADE |
KNOWN NEAR EQUIVALENT |
CHARACTERISTICS |
PRINCIPAL APPLICATIONS |
Softmag 36B |
Permalloy D |
Very high electrical resistivity, good permeability and low electrical loss |
Relays and pulse transformers |
Softmag 48B |
Permalloy B |
High initial permeability |
Relays, transformers, solenoids, current transformers |
Softmag 78 |
Mumetal |
These alloys show very high initial and maximum permeability at low magnetic forces |
Relay cores, current transformers, filters, inductances, magnetic amplifiers |
CONTROLLED EXPANSION ALLOYS |
| GRADE UNS NO. KNOWN NEAR EQUIVALENT |
Ferni 36 |
K93600 |
INVAR |
Ferni 42 |
K94200 |
N42 |
GRADE PRINCIPAL CHARACTERISTICS APPLICATIONS |
Ferni 36 |
These alloys have controlled expansion co-efficients |
Thermostats for geysers |
Ferni 42 |
These alloys are tough and ductile and can be strain hardened |
Glass to Metal seali |
HEATING ELEMENT ALLOYS
Electrical resistance alloys (SUPERHEAT SERIES) MIDHANI offers nickel-chromium and iron-nickel chromium alloys for heating elements in electric furnaces in various atmospheres. These alloys also find usage in iron heaters, dryers and other heating appliances
GRADE |
UNS NO. |
KNOWN NEAR EQUIVALENT |
SUPERHEAT 80 |
N0 6003 |
NICHROME V |
SUPERHEAT 60 |
N0 6004 |
NICHROME 3 |
SUPERHEAT 45 |
- |
GILPHY 45 |
SUPERHEAT 30 |
- |
NICHROME 1 |
GRADE |
PRINCIPAL CHARACTERISTICS |
APPLICATIONS |
SUPERHEAT 80 |
Suitable for electrical resistance and electrical heating applications |
Electric furnace in oxidizing or neutral atmosphere domestic heaters, wire wound resistors and potentiometers |
SUPERHEAT 60 |
- do - |
Iron heaters, dryers |
SUPERHEAT 45 |
- do - |
Electric furnace in reducing, carburizing or slightly sulphurising atmosphere |
SUPERHEAT 30 |
- do - |
Medium temperature furnace, heaters, Rheostats, Shunts |
RARE EARTH MAGNETS :
Neodymium-based Nd-Fe-B Rare Earth Magnets (REMs) with excellent magnetic properties - high energy product, high remanance and high coercivity are also manufactured by MidhaniDisc, ring and block/square REMs for industrial and healthcare products have the following magnetic properties :
Remanence Br (kG) -- 10-12
Coercivity Hc (kOe) -- 7-8.5
Intrinsic Coercivity Hci (kOe) -- 8-9.5
Max. Energy Product(BH)Max(MGOe) 25-35
