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C18200 chromium copper
C18200 chromium copper (UNS number) is a high-strength and high-conductivity copper alloy, belonging to the chromium copper (Cu-Cr) series. It possesses excellent heat resistance, wear resistance and fatigue resistance, and is widely used in fields such as resistance welding electrodes, electrical contacts, and high-temperature structural components.
Services We Provide for C18200 copper
The C18200 copper products we produce eliminate all kinds of defects such as pores and cracks. We have independently developed a variety of new C18200 copper products, with each piece weighing up to 1300 kilograms.
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Chemical composition
The chemical composition of C18200 mainly includes copper (Cu), chromium (Cr), iron (Fe), lead (Pb), silicon (Si), etc. Among them, copper is the main component, with the chromium content ranging from 0.6% to 1.2%. The contents of iron, lead and silicon are relatively low, not exceeding 0.10%, 0.05% and 0.10% respectively.
Standards and Grades
American Standard (ASTM): C18200 (UN number)
European Standard (EN): CW105C (EN 13602)
Chinese Standard (GB): QCr0.5 (GB/T 5231)
Similar Grades: CuCr1 (DIN), C18100 (UNS)
Main features:
High strength: After cold processing and aging, the tensile strength is 400-550 MPa.
High conductivity: Conductivity ≥ 85% IACS (superior to zirconium-chromium copper)
High temperature resistance: Softening temperature ≥ 450°C
Wear and corrosion resistance: Good antioxidant and anti-electric arc ablation performance
Lower cost: Compared to zirconium-chromium copper, it offers a more favorable price advantage
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