Commercially Pure Iron Supplier | High-Performance & Consistent Quality
Beilun Metals delivers premium Commercially Pure Iron billets and components engineered for precision industrial applications. With purity levels exceeding 99.8% and strict adherence to ASTM/ISO standards, our products ensure unmatched consistency in magnetic, mechanical, and corrosion-resistant properties.
Product Overview
Commercially Pure Iron (CPI) refers to iron with minimal impurities (C <0.02%, S <0.005%), optimized for:
Magnetic Performance: High permeability (μ ≥5,000 μH/m) and low coercivity (Hc ≤80 A/m).
Structural Integrity: Tensile strength 200-300 MPa, elongation up to 35%.
Corrosion Resistance: Passivated surfaces for harsh environments (salt spray >500h per ISO 9227).
Available Forms:
Billets (10–500mm diameter)
Slabs, rods, and custom machined parts
Surface finishes: Mill scale, polished, or coated (anti-rust, insulation).
Technical Specifications & Performance
1. Core Material Properties
| Property | Specification | Testing Standard | Key Advantage |
|---|---|---|---|
| Purity (Fe) | ≥99.85% | GDMS (ISO 17025) | Ultra-low trace elements (<0.1%) |
| Carbon (C) | ≤0.015% | ASTM E1019 | Minimizes carbide formation |
| Sulfur (S) | ≤0.005% | LECO Analysis | Enhances weldability |
| Permeability (μ) | 5,000–15,000 μH/m (DC–1 kHz) | IEC 60404-8 | Ideal for magnetic shielding |
| Thermal Conductivity | 75–80 W/m·K | Laser Flash (ISO 22007) | Stable performance in heat cycles |
2. Mechanical & Environmental Resilience
| Parameter | Value | Condition |
|---|---|---|
| Tensile Strength | 220–280 MPa | Cold-rolled, annealed |
| Elongation at Break | 25–35% | ASTM E8/E21 |
| Hardness (HV) | 70–90 | Vickers, 10kg load |
| Corrosion Resistance | >500h neutral salt spray | ISO 9227 (NSS) |
| Operating Temperature | -50°C to +400°C | Continuous service |
Applications & Industry Solutions
Electromagnetic Components
Transformers & Inductors:
Low core loss (<1.5 W/kg @ 1.5T/50Hz) for energy-efficient power systems.
Permeability stability (±2% from -40°C to +120°C).
EV Motors:
High saturation flux density (2.1T) supports compact motor designs.
Customizable silicon oxide insulation coatings (3–5μm) reduce eddy current loss.
Industrial Machinery
Valve Bodies & Pump Housings:
Machinability rating 85% (vs. free-cutting steel), reducing tool wear.
Corrosion-resistant grades available with Mo micro-alloying (0.1–0.3%).
Heat Exchangers:
Thermal expansion coefficient 12.5×10⁻⁶/K (matches stainless steel).
Quality Assurance & Compliance
Production Process
Raw Material: Electrolytic iron (99.95% Fe) + vacuum-refined scrap.
Melting: Vacuum induction melting (VIM) to reduce O₂/N₂ <30 ppm.
Forming: Hot/cold rolling with inline ultrasonic flaw detection.
Testing: Full-spectrum chemical analysis, hysteresisgraph testing.
Certifications
Standards: ASTM A848, IEC 60404-8, ISO 9001.
Compliance: RoHS, REACH, Conflict Minerals Policy.
Traceability: Batch-specific MTCs (Material Test Certificates) provided.
| Feature | Detail |
|---|---|
| Customization | Tailored dimensions (±0.1mm tolerance), alloy adjustments (C/Si/Mn control). |
| Lead Time | 15–20 days for standard orders; expedited shipping available. |
| Sustainability | 100% recyclable; carbon footprint <2.0 tCO₂/ton. |
| Support | 24/7 technical consultation + 18-month warranty against material defects. |
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"Custom vacuum-melted pure iron manufacturer"
FAQ Section
Q: How does CPI differ from electrical steel?
A: CPI offers higher purity (Fe >99.8% vs. 96–98% in steel) and better ductility but lower silicon content.
Q: Can you supply passivated surfaces for marine use?
A: Yes – We offer nitric acid passivation or phosphate coatings per ASTM A967.
Q: What's the MOQ for custom alloys?
A: Minimum 3 tons for custom compositions; contact us for trial orders.
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