Naturally occurring or engineered oxide layer on high-purity aluminum surfaces providing corrosion resistance and surface properties.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Density | 3.95-4.10 g/cm³ | |
| Hardness | 1500-2000 HV (enhanced layers) | |
| Porosity | Controlled 10-30% (for specific applications) | |
| Thickness | 2-25 nm (natural: 2-10 nm, enhanced: 10-25 nm) | |
| Thermal Conductivity | 30-35 W/m·K | |
| Electrical Resistivity | 10¹⁴-10¹⁶ Ω·cm |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
High-purity aluminum ingots are standardized semi-finished products produced through electrolytic refining and casting processes.
Semi-finished aluminum alloy sheet with enhanced corrosion resistance for industrial tank fabrication.
Electrolytically refined copper sheet used as raw material for further processing
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Manufacturer profiles associated with Surface Oxide Layer.
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Natural oxide layers form spontaneously (2-10 nm thick) and provide basic corrosion protection. Enhanced layers (10-25 nm) are created through controlled oxidation processes for improved hardness, uniformity, and specific surface properties required in industrial applications.
The oxide layer influences welding, bonding, and coating processes. It must be properly prepared or modified to ensure good adhesion in joining operations and uniform results in surface finishing treatments.
Yes, through chemical etching, mechanical abrasion, or electrochemical processes. However, it typically reforms immediately when exposed to oxygen, so controlled modification rather than complete removal is standard practice.
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