SLH High Purity Fe-99.95% Pure Iron Manufacturer for EV & Medical Industries
- huaguanjie
- Aug 7, 2025
- 3 min read
In the rapidly evolving fields of electric vehicles (EVs) and medical technology,high-purity Fe-99.95% pure iron is the cornerstone of innovation. As a leading manufacturer, SLH Pure Iron delivers ultra-pure iron solutions that meet the stringent demands of these industries, combining unmatched magnetic performance, precision, and sustainability. This article explores how our materials empower breakthroughs in EV efficiency and medical precision, backed by advanced (metallurgy) and rigorous quality control.
1. Why Fe-99.95% Pure Iron is Indispensable
Ultra-high-purity iron (Fe ≥99.95%) is critical for applications where even trace impurities can compromise performance:
Industry | Key Requirement | Impact of Fe-99.95% Purity |
Electric Vehicles | Low core loss in motors | Extends battery range by 15–20% |
Medical Imaging | Zero magnetic distortion in MRI | Ensures diagnostic accuracy |
Renewable Energy | High-efficiency power conversion | Reduces energy waste by 10–12% |
Aerospace | Lightweight, durable components | Withstands extreme thermal cycles |
2. SLH Pure Iron Proprietary Manufacturing Process
Our vertically integrated production ensures Fe-99.95% purity through cutting-edge technologies:
Step 1: Hydrogen-Based Direct Reduction
- Process: Converts iron ore (Fe₂O₃) to sponge iron using H₂instead of coke.
- Emission Reduction: 50% lower CO₂ vs. traditional methods.
- Output: 99.7% pure sponge iron.
Step 2: Vacuum Induction Melting (VIM)
- Process: Melts sponge iron under 10⁻³ Pa vacuum to remove O₂, N₂, H₂.
- Purity Achieved: 99.93% Fe.
Step 3: Electro-Slag Remelting (ESR)
- Process: Eliminates sulfur (<0.001%) and non-metallic inclusions.
- Final Purity: Fe-99.95%** with uniform grain structure.
Step 4: Precision Forming & Annealing
Product Form | Technology | Application |
Thin Strips | 20-high cold rolling mill | EV motor laminations |
Forging Billets | Continuous casting | Medical device components |
Fine Wire | Multi-stage drawing | Surgical robotics sensors |
3. Technical Advantages of Fe-99.95% Pure Iron
Parameter | SLH Pure Iron | Industry Standard | Benefit |
Coercivity (Hc) | 60–80 A/m | 90–130 A/m | Lower energy loss in cyclic use |
Permeability (µ) | 5,200–6,000 µH/m | 4,000–4,500 µH/m | Efficient magnetic flux conduction |
Carbon Content (C) | <0.005% | <0.02% | Minimizes hysteresis loss |
Surface Roughness | Ra 0.4–0.8 µm | Ra 1.6–3.2 µm | Reduces friction in moving parts |
4. Applications Driving Demand
A. Electric Vehicles
- Motor Cores: Fe-99.95% laminations reduce eddy current loss by 25%, enabling 95%+ motor efficiency.
-Wireless Chargers: Ultra-thin strips (0.1mm) enable compact, high-frequency charging systems.
B. Medical Technology
- MRI Magnet Yokes: Zero impurities ensure no image distortion, even in 7T scanners.
- Surgical Robots: High-purity wire ensures precision in force feedback sensors.
C. Renewable Energy
- Wind Turbine Generators: 98.5% efficiency with reduced cogging torque.
- Solar Inverters: Low core loss at 50–100 kHz switching frequencies.
5. Sustainability at SLH Pure Iron
Initiative | Impact | Industry Comparison |
Hydrogen Smelting | 50% lower CO₂ emissions | Traditional coke-based smelting |
Scrap Recycling | 98% reuse rate in production | Industry average: 85% |
Water Management | Zero liquid discharge (ZLD) systems | Conventional wastewater discharge |
6. Quality Assurance & Certifications
- Testing Methods: BH curve analysis, ultrasonic flaw detection, ICP-OES chemical testing.
- Certifications: ISO 9001, IATF 16949 (automotive), ISO 13485 (medical devices).
- Traceability: Full material test reports (MTRs) with heat number tracking.
7. Why Choose SLH Pure Iron ?
Factor | SLH Pure Iron | Competitors |
Purity | Fe-99.95% guaranteed | Fe-99.8% standard |
Lead Time | 15–30 days (standard orders) | 45–60 days |
Customization | Alloying, coatings, geometries | Limited specifications |
Global Support | 24/7 multilingual technical team | Limited service hours |
Custom Solutions:
- Alloy additions (Si, Ni) for tailored resistivity.
- Precision machining to ±0.005mm tolerances.
In industries where precision and reliability are non-negotiable, SLH Pure Iron Fe-99.95% pure iron sets the benchmark. From extending EV battery ranges to enabling life-saving medical diagnostics, our materials are engineered to exceed expectations. Partner with us to harness the power of ultra-pure iron in your next breakthrough.



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