electrode cap: 1. used for welding. 2. material:CuCrZr,CuCr,CuZr,CuBeNi and CuNi2SiCr. 3. Specifications: 1) Hardness: ≥85 HRB 2) Conductivity (Ms/m): ≥46 3) Softening temperature: 600°CWe have a history of more than 27years.Its quality and price is very good. The products have been exported to many countries all over the world.