- 1J79 seamless tubes are precision-engineered from a nickel-iron soft magnetic alloy, specifically designed for applications requiring ultra-high magnetic permeability and low coercivity. With a composition of 78-80% nickel and balanced iron, this alloy delivers exceptional magnetic performance while maintaining excellent mechanical properties.
Key Performance Features:
Ultra-High Permeability: Initial permeability (μi) ≥40,000, maximum permeability (μm) ≥200,000.
Low Coercivity: Hc ≤0.8 A/m for efficient energy conversion.
Thermal Stability: Maintains magnetic properties from -60°C to 120°C.
Fabrication Precision: Achieves inner diameters as small as 0.2mm with ±0.003mm tolerance.
Strategic Industry Applications
Electronics & Telecommunications
Transformer cores.
Inductor components.
Magnetic shielding.
Energy Sector
Current sensors.
Power conversion systems.
Renewable energy inverters.
Industrial Processing
Magnetic separators.
Fluxgate sensors.
Actuator components.
Operational Benefits
Energy Efficiency: 30% lower core losses than silicon steel.
Design Flexibility: Cold formable to complex geometries.
Temperature Stability: <2% permeability variation over operating range.
Lifecycle Cost: 10-year minimum service life in most applications.
Contact us today to discuss your project needs and discover how 1J79 can elevate your engineering solutions.
| Grades | Chemical Composition(wt)% | |||||||||||||||||||||
| C | Cr | Ni | Ti | Fe | Co | Mn | Si | Mo | Cu | W | P | S | Al | Nb | V | B | Zr | O+N | H | |||
| 1J79 |
| 0.03 | - | 80 | - | rest | - | 0.6 | 0.5 | - | 0.2 | - | 0.02 | 0.02 | - | - | - | - | - | - | - | |
| - | - | 78.5 | - | - | - | 0.1 | 0.3 | 3.8 | - | - | - | - | - | - | - | - | - | - | - | ||
