4、CuAl203, R.W.M.A,Group A,Class 5.

     Its high conductivity and high permanent softening temperature meet the demands for spot welding of the following materials:

     Nickel-Plated Steel

     Nickel-Sheet

     Aluminum-Sheet

     Mechnanical Properties:

Material     Hardness     Electrical Conductivity          Permanent Softening

                  HRB   HV          IACS       Ms/m²              Temperature Begins at

CuAl203    81     145       80~82     49~50                          900℃