wholesale SF6 circuit breaker

W-Cu Contacts for vacuum application CuW contact materials have low chopping value,high anti-arc ablation and excellent breaking performance.The materials are widely used in low and medium voltage vacuum contactor and vacuum load switch.We have built a vacuum infiltration production line for such contact materials,which has annual capacity of 1 million pieces. Product Details: 1.The chemical composition and properties： MaterialChemical Compositions (wt%) Mechanical Properties CuWC/(Cr)OxygenNitrogenHardness HB(Mpa)Density (g/cm3)Electrical Conductivity (Ms/m) CuW-WC28±225±2＜0.0060＜0.0020≥196≥13.5≥20 CuCrW50±227-32＜0.0080＜0.0050≥100≥9.1≥18 2.CuW contact materials can be produced with different sizes at client’request.wholesale SF6 circuit breaker website:http://www.sirui-material.com/copper-tungsten-material/