Alloy 50(1J50)Permalloy
Common Trade Names: China 1J50, Russia 50H, Hy-Ra49Permalloy
This soft magnetic alloy consisting of 49% Nickel, balance Iron used where high initial permeability. maximum permeability, and low core loss is needed
Applications:
• Electro-magnetic shielding • Specialty transformer laminations • Toroidal tape wound cores • High quality motor laminations • Stepping motors
|
Grade |
U.K. |
JANPAN |
U.S.A. |
Russia |
Standard |
|
Supermalloy (1J50) |
Mumetal |
PCS |
Hy-Ra49 |
50H |
ASTM A753-78 GBn 198-1988 |
Alloy50(1J50) Chemical Composition
| Grade |
Chemical Composition (%) |
|||||||
| C | P | S | Cu | Mn | Si | Ni | Fe | |
| Supermalloy 1J50 | ≤ | |||||||
| 0.03 | 0.020 | 0.020 | 0.20 | 0.30~0.60 | 0.15~0.30 | 49.5~50.5 | Balance | |
Alloy50(1J50) Physical Property
|
Grade |
Resistivity (μΩ•m) |
Density (g/cm3) |
Curie point °C |
saturation magnetostriction constant (×10-2) |
Tensile Strength/MPa |
Yelid Strength/MPa |
||
|
Supermalloy 1J50 |
||||||||
|
0.45 |
8.2 |
500 |
25 |
450 |
150 |
|||
lloy50(1J50) Average Linear Expansion
|
Grade |
Coefficient of Linear Expansion at Different Temperaturel(x 10-6/K) |
||||||||
|
20～100℃ |
20～ 200℃ |
20～ 300℃ |
20～400℃ |
20～ 500℃ |
20～ 600℃ |
20～ 700℃ |
20～ 800℃ |
20～ 900℃ |
|
|
Alloy 50 1J50 |
8.9 |
9.27 |
9.2 |
9.2 |
9.4 |
-- |
-- | -- | -- |
Mumetal Shielding Potential
Permalloy has extremely high permeability and nominal coercive force that make it a suitable material for shielding operations. To achieve the desired shielding properties, HyMu 80 is annealed up to 1900oF or 1040oC subsequent to forming processes. Annealing at the elevated temperatures enhances the permeability and shielding properties.
