Customization: | Available |
---|---|
Product Type: | Strip |
Material: | Ni,Fe |
Still deciding? Get samples of US$ 30/kg
Request Sample
|
Suppliers with verified business licenses
Audited by an independent third-party inspection agency
Soft magnetic alloy with high initial permeability | |
Grade | 1J79,1J80,1J85,1J86 |
Size | Strip:(0.03-0.1)mm*(180-250)mm (0.1-1.0)mm*(10-250)mm (1.0-2.5)mm*(100-250)mm Wire:0.1-6.0mm Bar:20-100mm |
Features | High or very high initial permeability large permeability, extremely low coercive force, and low saturation magnetic induction. |
Application | High sensitivity and small power transformers used in weak magnetic fields, small power magnetic amplifiers, relays, chokes, magnetic heads for magnetic recording devices, magnetic shields, various tape wound cores, cut cores and laminated cores. |
Ni | 79.0~81.0 | Fe | Bal. | Mn | 0.3~0.6 | Si | 0.15~0.3 |
Mo | 4.8~5.2 | Cu | ≤0.2 | ||||
C | ≤0.03 | P | ≤0.02 | S | ≤0.02 |
Yield strength | Tensile Strength | Elongation |
Mpa | Mpa | % |
980 | 1030 | 3~50 |
Density (g/cm3) | 8.75 |
Electrical resistivity at 20ºC(ohm.mm2/m) | 0.56 |
Coefficient of linear expansion(20ºC~200ºC)X10-6/ºC | 10.9~11.2 |
Saturation magnetostriction coefficient λθ/ 10-6 | 0,5 |
Curie point Tc/ ºC | 400 |
The magnetic properties of alloys with high permeability in weak fields |
|||||||
1J85 | Initial permeability | Maximum permeability | Coercivity | Saturation magnetic induction intensity | |||
Сold-rolled strip/ sheet. Thickness, mm |
μ0.08/ (mH/m) | μm/ (mH/m) | Hc/ (A/m) | BS/ T | |||
≥ | ≤ | ||||||
0.01 mm | 20 | 87.5 | 4.8 | 0.75 |
|||
0.1~0.19 mm | 37.5 | 187.5 | 1.6 | ||||
0.2~0.34 mm | 50 | 225 | 1.2 | ||||
0.35~1.0 mm | 62.5 | 312.5 | 0.8 | ||||
1.1~2.5 mm | 50 | 187.5 | 1.2 | ||||
2.6~3.0 mm | 43.8 | 150 | 1.44 | ||||
cold drawn wire | |||||||
0.1 mm | 8.7 | 37.6 | 6.4 | ||||
Bar | |||||||
8-100 mm | 37.5 | 125 | 1.6 | ||||
Mode of heat treatment | |
Annealing media | Vacuum with a residual pressure not higher than 0.1Pa, hydrogen with a dew point of not higher than minus 40 ºC. |
The heating temperature and rate | 1100~1200ºC |
Holding time/h | 3~6 |
Cooling rate | With 100 ~ 200 ºC/ h cooled to 500~600 ºC, not less than 400ºC/h cooled to 300ºC |