Description
Specifications Table
Product Name – Copper rod, 25.4mm (1.0in) dia, Puratronic™, 99.995% (metals basis) 250mm, 50mm
Quantity/Pack Size – 250mm length, 50mm length
Form – Rod
Grade – Puratronic™, 99.995% (metals basis)
Application – High-precision electrical, thermal, and analytical applications
Product Overview
This Puratronic™ 99.995% pure copper rod is engineered for applications demanding ultra-low impurity levels and superior electrical and thermal conductivity. The 25.4mm (1.0in) diameter ensures structural integrity while maintaining high surface quality, making it ideal for precision instrumentation, calibration standards, and advanced material research. The rod undergoes rigorous purification processes to eliminate trace contaminants, ensuring consistent performance in sensitive environments. Available in 250mm and 50mm lengths, this copper rod is machined to tight tolerances, providing uniformity for repeatable experimental results. Its high-purity composition minimizes oxidative degradation, extending its operational lifespan in both ambient and controlled atmospheres. The material’s inherent ductility allows for custom fabrication without compromising its metallurgical properties. Whether used in cryogenic systems, vacuum chambers, or as a reference material, this Puratronic™ copper rod delivers exceptional reliability for critical laboratory workflows.
FAQs
1. What is the maximum operating temperature for this Puratronic™ copper rod?
The rod maintains structural stability up to 200°C in standard atmospheric conditions, though prolonged exposure above 150°C may accelerate surface oxidation. For vacuum or inert gas environments, the operational range extends to 400°C without significant degradation of its electrical properties.
2. How does the 99.995% purity compare to standard OFHC copper?
This Puratronic™ grade contains 5x fewer impurities than typical OFHC (oxygen-free high conductivity) copper, which usually ranges between 99.95% and 99.99%. The reduced levels of oxygen, sulfur, and transition metals in this rod minimize grain boundary defects, resulting in superior thermal conductivity and lower electrical resistance.
3. Can this copper rod be soldered or welded without affecting its purity?
While the rod can be joined using low-temperature solders (below 300°C), high-temperature welding processes risk introducing contaminants from fluxes or filler materials. For purity-critical applications, we recommend mechanical joining methods like compression fittings or silver-plated clamps to preserve the rod’s metallurgical integrity.
4. What surface finish does this copper rod have as supplied?
The rod features a bright, as-drawn finish with an average surface roughness (Ra) of 0.4 micrometers. This smooth surface reduces particulate generation during handling and minimizes contact resistance in electrical applications. For ultra-clean requirements, additional polishing or passivation treatments can be applied post-delivery.
5. Is this copper rod compatible with ultra-high vacuum (UHV) systems?
Yes, the low outgassing rate of Puratronic™ copper makes it suitable for UHV environments after proper cleaning. We recommend degreasing with acetone followed by a high-temperature bake-out (150°C for 24 hours) to remove adsorbed moisture and hydrocarbons before installation in vacuum chambers.
