Copper Sheet

Copper Sheet is a flat-rolled copper product with a uniform thickness and a clean, bright surface, supplied in cut-to-size sheets or larger plates. Most commercial copper sheet is made from Electrolytic Tough Pitch (ETP) copper, UNS C11000 (C110) / Cu-ETP CW004A, containing at least 99.90% copper. It offers the exceptional electrical and thermal conductivity, formability and corrosion resistance that have made copper a cornerstone material in construction, electrical engineering and industrial manufacturing for centuries.Sheets are rolled to precise thickness tolerances and can be supplied in soft (annealed), quarter-hard, half-hard and hard tempers. Annealed sheet is ideal for deep drawing, spinning and intricate bending, while harder tempers provide greater stiffness for flat, rigid components. Standard production follows ASTM B152 and equivalent European standards such as EN 1652 (general purposes) and EN 13599 (electrical purposes).Material PropertiesComposition: Electrolytic Tough Pitch (ETP) copper, UNS C11000 (C110) / Cu-ETP CW004A, with a minimum copper content of 99.90%.Electrical conductivity: 100% IACS minimum in the annealed condition, the international benchmark for conductive metals.Thermal conductivity: approximately 390 W/m·K, among the highest of all engineering metals.Density: approximately 8.89 g/cm³. Melting point: approximately 1,083 °C.Corrosion resistance: excellent resistance to atmospheric exposure, fresh water and many industrial environments, developing a stable protective patina over time.Fabrication: outstanding cold-working, bending and forming behavior; can be soldered and brazed with excellent results. Welding is possible but requires care because of its oxygen content (use brazing or oxygen-free grades where gas-shielded welding is required).Typical ApplicationsArchitecture and construction: roofing, facades, cladding, flashing, gutters, domes and decorative panels that develop an attractive natural patinaElectrical: busbars, earthing plates, shielding panels, contacts, transformer components and PCB-related partsHeat transfer: heat exchangers, radiators, cooling plates, solar collectors and cookwareIndustrial: gaskets, shims, chemical-process equipment, distillation vessels and brewing equipmentArts and crafts: repoussé, engraving, etching, jewelry, sculpture and interior designWhy Choose Copper SheetOutstanding conductivity combined with excellent ductility, easy to cut, stamp, bend, spin and deep-drawNatural antimicrobial properties, useful for touch surfaces and food-contact applicationsDurable, low-maintenance and long-lasting, with service life measured in decadesSmooth, uniform surface that accepts plating, coating and patination treatmentsFully recyclable and available in many thicknesses and sheet sizesOrdering tip: specify the thickness, sheet dimensions, temper and any surface requirements (mill finish, polished or protective film). Where gas-shielded welding or high-vacuum service is required, ask about oxygen-free (OFE) or deoxidized copper grades as an alternative to ETP.