Moly Permalloy 80 Strip (Hi-mu 80 / Alloy 80 / 1J85)
Moly Permalloy 80 Strip (Hi-mu 80 / Alloy 80 / 1J85)
Ultra-High Permeability Soft Magnetic Alloy | ZYTC Alloy
ZYTC Alloy, a professional Chinese manufacturer of high-precision soft magnetic alloys, supplies premium Moly Permalloy 80 Strip (Hi-mu 80 / Alloy 80 / GB 1J85). As an upgraded molybdenum-containing nickel-iron permalloy, this alloy is optimized specifically for ultra-high permeability and low-loss electromagnetic performance.
Different from conventional 1J79 permalloy, the precise addition of 2每4% molybdenum greatly suppresses magnetostriction, minimizes hysteresis loss and eddy current loss, and delivers ultra-sensitive magnetic response in weak magnetic fields. Our finished strips are strictly processed by cold rolling and professional hydrogen/vacuum high-temperature annealing, ensuring stable and consistent magnetic parameters for high-end precision electronic and high-frequency electromagnetic applications.
1. Product Material Overview
2. Chemical Composition (Typical, wt%)
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Element
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Content Range
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|---|---|
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Nickel (Ni)
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79.0 每 81.0
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|
Molybdenum (Mo)
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4.8 每 5.2
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Manganese (Mn)
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0.30 每 0.60
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|
Silicon (Si)
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0.15 每 0.30
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Carbon (C)
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≒ 0.03
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|
Phosphorus (P) / Sulfur (S)
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≒ 0.02 (Strict impurity control)
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|
Iron (Fe)
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Balance
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3. Core Electromagnetic & Physical Properties
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Ultra-high initial permeability: Initial permeability (米i @ 0.4 A/m) ≡ 80,000, capable of capturing extremely weak magnetic signals accurately.
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Ultra-low coercivity: Coercivity (Hc) ≒ 1.5 A/m, featuring easy magnetization and demagnetization with negligible hysteresis loss.
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Near-zero magnetostriction: Molybdenum optimization minimizes magnetic deformation, ensuring stable output of precision magnetic circuits.
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Excellent high-frequency performance: High resistivity effectively suppresses eddy current loss, suitable for stable operation at 10kHz and above high-frequency scenarios.
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Low residual magnetism: Almost no remanence after magnetic field withdrawal, avoiding signal interference and offset errors.
4. Industry Standards & Professional Procurement Specifications
Applicable Grade & Standards
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National Standard: GB/T 15018-1994 (1J85 / 1J79)
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International Equivalent: High-permeability 80Ni-4Mo-Fe alloy (Hi-mu 80 / Alloy 80)
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Mandatory Delivery State: Cold-rolled + hydrogen/vacuum high-temperature final annealed (must be specified in technical agreements)
Key Technical Inquiry Requirements
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Precision Dimensional Tolerance: Ultra-precise thickness/width/length control with tolerance up to ㊣0.002mm, ensuring consistent lamination factor and low high-frequency loss.
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Fixed Magnetic Parameter Indicators: Tested by toroidal sample, initial permeability ≡80,000, coercivity ≒1.5 A/m; customizable amplitude permeability indicators at 10kHz frequency.
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Surface Functional Requirements: Optional phosphate or magnesium oxide insulating coating to further reduce eddy current loss for laminated core production; flat and burr-free strip surface to prevent lamination short circuits.
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Complete Test Documents: Batch DC magnetic performance reports (B-H curve & 米-H curve) are provided for each shipment.
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Precision Packaging: Moisture-proof, pressure-resistant and scratch-resistant vacuum packaging to protect surface and magnetic performance stability.
5. Typical Application Scenarios
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High-Frequency Magnetic Components: Switching power supply high-frequency transformers, toroidal inductor cores and miniaturized high-frequency magnetic devices.
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Precision Sensor Industry: Fluxgate sensors, high-precision current transformers and weak magnetic field detection elements.
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High-Efficiency Electromagnetic Shielding: Medium and low frequency anti-interference precision shielding shells and shielding structural parts.
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Audio & Recording Equipment: High-fidelity magnetic head chips and precision magnetic induction components.
6. Professional Procurement Guidance
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Technical Agreement Matching: Cooperate with electromagnetic engineers to formulate targeted magnetic parameter standards to avoid unqualified batch performance.
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Supplier Core Capability Verification: Prioritize suppliers with professional hydrogen/vacuum heat treatment furnaces and independent magnetic performance testing laboratories, as annealing process directly determines final magnetic properties.
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Sample First, Mass Production Later: Implement first-sample inspection and third-party testing mechanism to ensure parameter compliance before bulk delivery.
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Clear Contract Clauses: Define unqualified magnetic performance as return and claim standard to guarantee project yield rate.
7. ZYTC Alloy Core Advantages
As a professional Chinese manufacturer focusing on high-end molybdenum permalloy soft magnetic materials, ZYTC Alloy integrates precision cold rolling, vacuum hydrogen annealing and professional magnetic performance testing. We strictly control alloy composition impurity content and annealing atmosphere temperature, ensuring zero fluctuation of core magnetic parameters in different batches and different strip sections.
We support customized precision thickness, surface insulation coating and custom magnetic parameter matching services. Each batch is equipped with complete test reports and technical documents, providing one-stop high-reliability material solutions for global precision electronics, sensor and new energy high-frequency component manufacturers.