For the production of sintered products in metallurgical, electrical, aeronautical, automotive, machine-building industries (brushes for electric machines, parts made of copper powder-based dispersion-hardened composite materials, conductive tips and electrodes for welding, soldering iron stingers, heavily loaded dry sliding bearings).

Particle structure

Grid size per ISO 565, μm Particle size, μm Particle size distribution, %
CPR-H CPR-G CPR-A CPR-B CPR-C CPR-D CPR-E CPR-F
600 ≥600 3 max
300 ≥300 10-40 3 max
250 ≥250 15 max
212 ≥212 50-80 0,5 max 0,5 max
200 ≥200
180 ≥180 5 max 2 max 0,5 max
160 ≥160
150 ≥150 60-90 1 max 0,5 max 0,5 max
106 ≥106 25-45 10-30 6 max 3 max 2 max 0,5 max
75 ≥75 97 min 97 min 10-20 10 max
<75 3 max 3 max
63 ≥63 60-80 45-65 30-40 10 max
45 ≥45 75-95 65-85 50-60 50-60 35-45 15-35
<45 5-25 15-35 40-50 40-50 55-65 65-85
Bulk density, g/cm3 2,4-3,2 2,25-2,55 2,1-2,5 1,8-2,2
Copper mass fraction, %, min 99,6 99,7
Oxygen mass fraction, %, max 0,25 0,2

Note: “<” represents undersize material, “≥” represents oversize material in the particle size value