Chemical composition % ? of grade ? Cu-PHC ? ( CW020A ) Cu including Ag < 0.015% P Cu Pb Bi Others 0.001 - 0.006 min ? 99.95 max ? 0.005 max ? 0.0005 total 0.03 Mechanical properties of grade ? Cu-PHC ? ( CW020A ) Rm?- Tensile strength (MPa) (R220) 220-260 Rm?- Tensile strength (MPa) (R290) 290-360 Rm?- Tensile strength (MPa) (R350) 350 Rp0.2?0.2% proof strength (MPa) (R220) 140 Rp0.2?0.2% proof strength (MPa) (R290) 250 Rp0.2?0.2% proof strength (MPa) (R350) 320 A?- Min. elongation at fracture (%) (R350) 5 A?- Min. elongation Lo = 50mm (%) (R220) 33 A?- Min. elongation Lo = 50mm (%) (R290) 4 A?- Min. elongation Lo = 100mm (%) (R350) 3 ? Vickers hardness ?( HV): ? (H040) (R220) 40 - 65 ? Vickers hardness ?( HV): ? (H090) (R290) 90 - 110 ? Brinell hardness ? (HB): ? (H100) (R350) 100 Properties Cu-PHC Volume resistivity = 0.01724 - 0.01786 Ω*mm2/m ; Equivalent grades of grade ? Cu-PHC ? ( CW020A ) Warning! Only for reference EU? Germany EN DIN,WNr Cu-PHC 2.007 SE-Cu