Copper square 6x6-40x40mm copper square bar 2.0065 square bar Cu-ETP (size : 10 x 10mm, length : 0.02 Meter)

This copper square bar, designated as Cu-ETP, is made from electrolytically refined copper with a purity of at least 99.9% and a maximum oxygen content of 0.04%. Due to its composition, it is not suitable for welding, as hydrogen embrittlement may occur, and brazing in a reducing atmosphere is also not recommended. However, it is highly formable both in cold and hot conditions and offers excellent properties for soft soldering. With its superior electrical and thermal conductivity, this copper bar is commonly used in heating and cooling technology (such as radiators and heat exchangers), electrical engineering (including motors, coils, and terminals), apparatus and mechanical engineering, shipbuilding, construction (as decorative elements for interiors and facades), electric lines, and wire windings. The material features good corrosion resistance, a smooth surface (which may have minor handling marks), and is available in semi-hard or hard conditions. While it offers outstanding processability and solderability, machinability is limited. Key features: - Excellent cold and hot formability - High electrical and thermal conductivity - Good corrosion resistance - Ideal for soldering, not suitable for sweating or brazing in reducing atmospheres - Poor machinability This copper square bar meets the following standards: Material number 2.0065, US: CW004A, and EN: Cu ETP. It has a density of 8.93 g/cc, a melting point of 1083°C, thermal conductivity of 394 W/m·K, and electrical conductivity of 57 ms/m.