Product Overview
Beilun Metals'phosphate-coated pure iron combines 99.95% base purity with advanced anti-corrosion treatment, ideal for components exposed to moisture, chemicals, or saltwater. The electro-deposited phosphate layer ensures long-term protection while maintaining weldability and paint adhesion,Enhanced Durability for Harsh Environments.
Key Specifications Table
|
Parameter |
Details |
|
Base Material Grade |
ASTM A849, DIN EN 10130 |
|
Iron Purity |
≥99.95% Fe |
|
Coating Type |
Zinc Phosphate (ZnPhos) |
|
Coating Thickness |
8–15 μm (Customizable) |
|
Surface Treatment |
Degreased, Phosphated, Passivated |
|
Corrosion Resistance |
500–800 hrs (Salt Spray Test ASTM B117) |
Competitive Advantages Table
|
Feature |
Beilun Metal Coated Iron |
Standard Coated Iron |
|
Coating Adhesion |
15–20 MPa (ASTM D4541) |
8–12 MPa |
|
Base Metal Purity |
≤0.025% impurities |
≤0.05% impurities |
|
Environmental Compliance |
RoHS, REACH, ELV Directive |
Limited to RoHS |
|
Post-Coating Options |
Oil-impregnated/Sealed finishes |
Basic phosphate-only |
|
Warranty |
10-year anti-rust guarantee |
5–7 years |
Base Material Composition Table
|
Element |
Content (%) |
Tolerance |
|
Iron (Fe) |
≥99.95 |
±0.003 |
|
Carbon (C) |
≤0.018 |
±0.002 |
|
Sulfur (S) |
≤0.004 |
±0.001 |
|
Phosphorus (P) |
≤0.010 |
±0.002 |
|
Silicon (Si) |
≤0.02 |
±0.005 |
|
Trace Elements |
≤0.008 (Cu, Cr, Ni) |
– |
Phosphate Coating Properties Table
|
Property |
Value |
Test Standard |
|
Coating Weight |
2.5–4.5 g/m² |
ISO 9717 |
|
Crystal Structure |
Fine-grained, amorphous layer |
SEM Analysis |
|
Porosity |
≤3 pores/cm² |
ASTM B765 |
|
Paint Adhesion |
Class 0 (No peeling) |
ASTM D3359 |
|
Operating Temperature |
-50°C to +200°C |
MIL-DTL-16232 |
Applications & Industry Solutions
Target Industries
- Marine Engineering: Hull fasteners, pump housings
- Automotive: Brake components, chassis parts
- Construction: HVAC systems, structural bolts
- Agriculture: Fertilizer equipment, irrigation valves
Technical Benefits
Rust Inhibition: Phosphate layer blocks O₂/H₂O penetration
Low Friction: Coating reduces wear in moving parts
Customization: Black/gray coating colors available
Quality Control Process Table
|
Stage |
Inspection Method |
Acceptance Criteria |
|
Base Metal Check |
Glow Discharge Spectrometry (GDA) |
Fe ≥99.95%, S/P ≤0.01% |
|
Pre-Treatment |
Contact Angle Test (Hydrophobicity) |
≤10° water contact angle |
|
Coating Thickness |
Eddy Current Measurement |
8–15 μm ±1.5 μm |
|
Final Validation |
Cyclic Corrosion Test (CCT) |
50 cycles (ASTM D5894) |
FAQ Section
Q: Does the coating affect machining or welding?
A: No – Our phosphate layer is post-fabrication applied; base metal remains fully machinable.
Q: Can you match Pantone/RAL colors for the coating?
A: Yes–Custom tinting available for OEM projects.
Q: Lead time for coated orders?
A: 10–18 days (depending on coating specs).
Why This Works:
- Unique tables focus on coating-specific metrics (adhesion, porosity, CCT) to differentiate from generic iron product pages.
- Combines base material purity and coating performance data for technical depth.
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