Industrial Soft Magnetic Alloy 1J36 Sheet For Precision Magnetic Components
Global supplier DLX provides high-permeability 1J36 soft magnetic alloy sheets for precision sensor cores, magnetic shielding, and relay laminations with ultra-low carbon purity, tight thickness tolerances, and custom slitting capabilities.
- Overview
- Specifications
- Features
- Applications
- About Us
- FAQ
- Recommended Products
Product Overview
1J36 is a specialized nickel-iron soft magnetic alloy renowned for combining high magnetic permeability with low thermal expansion and reliable temperature-compensation capabilities. In high-frequency, precision magnetic circuits and inductive devices, minimizing eddy current and hysteresis losses is paramount. DLX 1J36 soft magnetic sheets are refined with strict carbon and trace-element reduction to achieve rapid magnetic saturation, low remanence, and consistent flux density.
Available in cold-rolled sheets, ultra-thin foils, slit coils, and pre-cut blanks, our material meets the most stringent internal quality verification systems and optical dimensional inspection standards, ensuring seamless automated assembly for Tier-1 component fabricators and global OEM partners.

Technical Specifications
Chemical Composition (Nominal Weight %)
| Element | Nickel (Ni) | Carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Iron (Fe) |
|---|---|---|---|---|---|---|---|
| Content (%) | 35.0 – 37.0 | ≤ 0.030 | ≤ 0.30 | 0.30 – 0.60 | ≤ 0.020 | ≤ 0.020 | Balance |
Key Physical & Magnetic Properties (Post Hydrogen Annealing)
| Property Parameter | Typical Value / Unit | Quality Verification Benchmark |
|---|---|---|
| Density | 8.15 g/cm³ | High-density homogeneous matrix |
| Curie Temperature () | ~240 °C | Stable magnetic transition point |
| Electrical Resistivity | ~0.80 μΩ·m | Low eddy-current generation |
| Thermal Expansion () | 1.5 – 2.2 × 10⁻⁶/K | Low thermal expansion stability |
| Coercive Force () | ≤ 12 A/m | Ultra-low hysteresis loss |
| Saturation Magnetic Induction () | 1.25 – 1.35 T | High magnetic flux density |
| Initial Permeability () | High Initial Response | Fast dynamic magnetic excitation |
Available Supply Dimensions & Processing States
| Product Form | Thickness Range | Width Range | Surface Finish & Temper |
|---|---|---|---|
| Precision Cold-Rolled Sheet | 0.10 mm – 3.00 mm | 10 mm – 450 mm | Bright annealed / Pickled / Matte |
| Ultra-Thin Foil / Strip | 0.025 mm – 0.08 mm | 5 mm – 250 mm | High-precision slitting, burr-free |
| Custom Cut Laminations | Tailored to CAD | Custom stamping | CNC cut / Laser cut / Stamped |
Key Features & Advantages
Ultra-Low Coercive Force & Minimal Hysteresis Loss
Through high-purity vacuum metallurgy and optimized decarburization, 1J36 sheets maintain extremely low coercivity (), allowing rapid demagnetization and energy conservation in alternating magnetic fields.
Excellent Thermal-Magnetic Compensation Stability
With a Curie point of approximately 240°C, 1J36 exhibits consistent magnetic permeability under elevated operating temperatures, preventing signal drift in precision instrumentation and sensor cores.
Tight Dimensional Tolerances & Superior Stamping Formability
Our multi-pass cold rolling and tension leveling lines achieve thickness tolerances within ±0.005 mm, ensuring excellent die-stamping compatibility, high stacking factor, and zero edge micro-cracking during component manufacturing.
High Batch-to-Batch Magnetic Uniformity
Every heat undergoes full-spectrum spectrometer analysis and dedicated magnetic permeameter verification to ensure uncompromised electromagnetic consistency from master coil to finished sheet.

Industrial Product Applications
Precision Current Sensors & Fluxgate Transducers
High-sensitivity core laminations that convert micro-magnetic signals with zero distortion.
Electromagnetic Relays & Solenoid Actuators
Rapid-response magnetic pole pieces and armatures requiring low remanence and high pull-in force.
Magnetic Shielding Enclosures & Cans
Multi-layer shielding for sensitive aerospace avionics, medical MRI sensors, and audio transformers to block stray electromagnetic interference (EMI).
Transformer Laminations & Inductor Cores
High-efficiency, low-loss magnetic flux paths in specialized high-frequency power electronics and telecommunication filters.

Why Choose DLX Alloy
Monthly Production Capacity of 1,200 Tons
Large-scale continuous melting, hot forging, cold rolling, and heat treatment lines guarantee fast delivery schedules and volume security for global supply chains.
End-to-End In-House Quality Control
From vacuum induction melting (VIM) and electroslag remelting (ESR) to pure dry hydrogen protective atmosphere annealing, every batch is verified with comprehensive Mill Test Certificates (MTC).
Custom Processing & Dynamic MOQ
Flexible ordering tailored to development prototypes or mass OEM production runs, supported by precision custom slitting, edge deburring, and protective packaging.
Engineering & Technical Support
Dedicated metallurgical support assisting clients with magnetic circuit optimization, magnetic shielding calculations, and final vacuum hydrogen annealing parameters.


Product FAQ
Q1: What makes 1J36 alloy different from standard silicon steel or high-nickel alloys?
A1: 1J36 balances high magnetic permeability with controlled thermal expansion characteristics and moderate saturation induction. Unlike standard silicon steels, it offers much lower coercivity and higher initial permeability; compared to 1J85 (80% Ni Permalloy), it provides higher saturation flux density () and superior mechanical robustness under temperature shifts.
Q2: Does 1J36 sheet require final heat treatment after stamping or machining?
A2: Yes. To achieve optimal soft magnetic properties (maximum permeability and lowest coercivity), 1J36 components should undergo a final magnetic annealing cycle at 1050°C–1150°C in a dry hydrogen atmosphere (dew point below -40°C) or high vacuum, followed by controlled cooling. DLX can provide recommended time-temperature-cooling curve guidelines upon order.
Q3: What thickness tolerances and edge conditions can DLX provide for 1J36 sheets?
A3: We supply cold-rolled 1J36 precision strips and sheets with thickness tolerances as tight as ±0.003 mm to ±0.008 mm depending on nominal gauge. Edges can be delivered as slit edge, rounded edge, or completely deburred for automated stamping and stacking operations.
Q4: How is 1J36 sheet packaged for international maritime and air freight?
A4: All 1J36 sheets and slit coils are protected with anti-rust oil or VCI vapor corrosion-inhibitor paper, vacuum-sealed in moisture-barrier plastic film, and packed in reinforced export-grade wooden cases with internal shock buffering to prevent mechanical impact and moisture ingress during transit.


