Product Overview
Beilun Metal's electrolytic grade iron (99.99%+ purity) is refined through proprietary electrowinning processes, achieving ultra-low trace impurities for critical uses in lithium-ion batteries, semiconductor plating, and specialty alloys. Ideal for industries requiring minimal metallic contaminants and exceptional electrochemical stability.
Core Specifications at a Glance
|
Parameter |
Specification |
|
Purity |
99.99%–99.997% (Fe basis) |
|
Form |
Cathode Sheets, Flakes, Powder |
|
Thickness |
0.5–5mm (sheets), 50–200μm (powder) |
|
Surface Roughness |
Ra ≤0.8μm (mirror finish available) |
|
Oxygen Content |
≤80 ppm (vacuum-packed option: ≤30 ppm) |
|
Certifications |
ISO 9001, UL ECSS-Q-ST-70-06C |
Chemical Composition Table
|
Element |
Typical (ppm) |
Max Allowable (ppm) |
Detection Method |
|
Fe |
999,900 |
– |
ICP-OES |
|
C |
≤15 |
30 |
Combustion Analysis |
|
S |
≤8 |
15 |
LECO S-144DR |
|
P |
≤10 |
20 |
UV-Vis Spectrophotometry |
|
Cu |
≤5 |
10 |
AAS |
|
Ni |
≤3 |
8 |
ICP-MS |
|
O |
≤80 |
120 |
Inert Gas Fusion |
Notes: Hydrogen ≤2 ppm; Trace elements (Mn, Cr, Ti) ≤5 ppm each.
Performance Comparison
|
Property |
Beilun Electrolytic Iron |
Industry Standard Electrolytic Iron |
|
Current Efficiency |
98.5% (CuSO₄ bath) |
92–96% |
|
Cathodic Purity |
99.997% |
99.95–99.99% |
|
Surface Porosity |
0 pores/cm² |
≤3 pores/cm² |
|
Dendrite Formation |
None (controlled growth) |
Moderate risk |
|
Recycling Yield |
99% |
95–97% |
Technical Properties
|
Characteristic |
Value |
Test Standard |
|
Electrical Conductivity |
9.93 × 10⁶ S/m |
ASTM B193 |
|
Thermal Conductivity |
79.8 W/m·K |
ISO 22007-2 |
|
Density |
7.874 g/cm³ |
ASTM B311 |
|
Vickers Hardness |
35–50 HV |
ISO 6507-1 |
|
Crystallographic Structure |
BCC (α-iron) |
XRD Analysis |
Key Applications
Industry-Specific Solutions
- Battery Manufacturing: Anode current collectors, LiFePO₄ precursors
- Electroplating: High-throw semiconductor substrates, EMI/RFI shielding
- Chemical Catalysts: Fischer-Tropsch catalyst supports, hydrogenation reactors
- Additive Manufacturing: Spherical powders for binder jetting (D50: 15–45μm)
Unique Advantages
Zero Organic Residues: Rinsed with deionized water + ethanol
Custom Morphology: Columnar, equiaxed, or nano-whisker structures
Low Hydrogen Embrittlement: Bake-out treated at 300°C under vacuum
Production Process & Quality Control
|
Stage |
Technology |
Key Metrics Controlled |
|
Electrolysis |
HCl-based electrowinning cells |
Current density: 200–450 A/m² |
|
Washing |
Counter-current ultrasonic rinsing |
Conductivity <5 μS/cm |
|
Drying |
Vacuum rotary dryer |
Moisture ≤50 ppm |
|
Particle Analysis |
Laser diffraction (ISO 13320) |
D90 <75μm (powder) |
|
Packaging |
Nitrogen-filled laminated foil |
Oxygen ingress <0.01% vol/day |
FAQ Section
Q: Can you supply RoHS/REACH-compliant material?
A: Yes – All batches meet EU Directive 2011/65/EU and SVHC <0.1%.
Q: What's the shelf life of electrolytic iron powder?
A: 24 months in unopened packaging; recommend storage at <30% humidity.
Q: MOQ for customized particle size distribution?
A: 500 kg for tailored specifications; sample quantities available.
Why Choose Beilun Metal?
Closed-Loop Refining: 100% recycled electrolyte solutions
Zero Cross-Contamination: Dedicated production line for Cu/Ni-free grades
R&D Collaboration: Custom electrolytic cell designs for unique purity needs
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