Sourcing ultra-high-purity metals like C10100 Oxygen-Free Electronic (OFE) copper internationally introduces two critical risk factors into your supply chain: unpredictable lead times and material degradation during sea freight.
For manufacturers of MRI scanners, UHV chambers, or high-frequency PCBs, a delayed shipment halts production. Worse, receiving C10100 copper that has tarnished or oxidized in transit renders the material useless for vacuum brazing or sensitive electronic applications.
At GNEE METAL, we have engineered our logistics and packaging protocols to be as rigorous as our metallurgical refining. Here is how we guarantee your 99.99% pure copper arrives on time and in pristine, oxide-free condition.
The Oxidation Threat During Sea Freight
C10100 copper is highly susceptible to surface oxidation when exposed to moisture, salt-laden air, or even the natural humidity of a shipping container. If a supplier simply wraps the copper in standard plastic and ships it, the material will inevitably tarnish.
This oxidation is not merely a cosmetic issue. In ultra-high vacuum (UHV) systems, even a microscopic layer of surface oxide will cause massive outgassing and compromise the vacuum seal.
The GNEE METAL Anti-Oxidation Protocol
To eliminate this risk, we do not treat packaging as an afterthought; it is a critical step in our quality assurance process.
Before any C10100 material leaves our facility, it undergoes an intensive ultrasonic cleaning and vapor degreasing cycle to remove all residual drawing oils or machining fluids. Once a pristine, bare-metal surface is achieved, we immediately execute a multi-layer export packaging protocol:
VCI (Volatile Corrosion Inhibitor) Wrapping: Every single piece-whether they are delicate foils, robust plates, or precision seamless C10100 copper tubes-is meticulously wrapped in VCI anti-rust paper. This paper releases a microscopic vapor that forms a protective, invisible barrier on the copper surface.
Hermetic Vacuum Sealing: The wrapped copper is then inserted into thick, industrial-grade plastic sleeves and hermetically vacuum-sealed. This completely blocks out all atmospheric moisture and salt air.
Reinforced Wooden Casing: Finally, the sealed packages are secured within reinforced, fumigated wooden cases designed to withstand the shocks and vibrations of long sea voyages without shifting.
Your material arrives exactly as it left our spectrometer: 99.99% pure and completely oxide-free.
Stabilizing Lead Times for Custom and Standard Orders
Beyond packaging, managing lead times is essential. GNEE METAL is an ISO 9001:2015 certified source manufacturer, not a broker. This gives us complete control over our production scheduling.
Standard Stock: For standard dimensions of C10100 rods, sheets, and wire, we maintain robust inventory levels. Standard items typically ship within 3 to 5 business days.
Custom Extrusions & Machining: If your project requires custom profiles or specific tolerances (±0.1mm) milled from solid C10100 copper plates, our in-house CNC centers ensure we are not reliant on third-party machine shops. Custom manufactured components generally have a lead time of 10 to 15 days, depending on geometric complexity.
Every batch, whether standard stock or custom machined, is accompanied by a batch-specific Material Test Report (MTR) confirming strict adherence to ASTM F68 and ASTM B170 Grade 1 specifications.
We eliminate the variables in international sourcing. You demand zero outgassing, zero hydrogen embrittlement, and flawless delivery. We guarantee it.
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GNEE METAL Product Range
| Product Type | Shapes Available | Common Grades | Diameter/Thickness Range | Length/Width Range | Applications |
|---|---|---|---|---|---|
| Copper Tubes | Round, Square, Rectangular, Coiled | C10100, C10200, C11000, C12200, C12000 | OD: 0.5mm - 300mm Wall: 0.1mm - 20mm | Up to 6000mm or custom | HVAC, Plumbing, Heat Exchangers, Refrigeration, Hydraulic Lines |
| Copper Plates & Sheets | Flat Sheets, Perforated, Embossed, Tread Plate | C10100, C11000, C12200, C23000, C26000 | Thickness: 0.1mm - 200mm | Width: Up to 2500mm Length: Up to 6000mm | Electrical Busbars, Roofing, Cladding, Gaskets, Transformers |
| Copper Bars & Rods | Round Bar, Square Bar, Hexagonal Bar, Flat Bar | C10100, C11000, C14500, C17200, C18200 | Diameter: 1mm - 300mm | Length: 1000mm - 4000mm | Machined Components, Electrical Contacts, Busbars, Fasteners |
| Copper Wires | Round Wire, Flat Wire, Square Wire, Stranded, Braided | C11000, C11600, C17200, C17510 | Diameter: 0.05mm - 12mm | Coil weights: 1kg - 500kg | Electrical Wiring, Cables, Springs, Mesh, Welding Wire |
| Copper Strips & Coils | Thin Strip, Foil, Slit Coil, Profile Strip | C11000, C12200, C19400, C26000, C26800 | Thickness: 0.03mm - 5mm | Width: 2mm - 1000mm Coil ID: 300mm - 600mm | Transformers, Radiators, Shielding, Terminals, Connectors |
About Our Factory
We operate a full range of production lines including extrusion presses, cold drawing benches, high-speed rolling mills, slitting lines, and precision CNC machining centers, enabling us to produce copper tubes, plates, bars, wires, and strips entirely in-house. For quality assurance, we maintain a dedicated inspection laboratory equipped with spectral analyzers, universal testing machines, hardness testers, surface roughness testers, and optical measuring instruments. Every batch is tested for chemical composition, mechanical properties, and dimensional accuracy before shipment. Our production capacity reaches 500+ tons per month, and we hold ISO 9001:2015 certification with full traceability from raw material to finished product. Whether you need standard mill stock or custom-processed components, we deliver precision copper products with short lead times and complete material certification.
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