The invention discloses a high-
hardness conductive 
silver paste containing 
chromium powders. The conductive 
silver paste is characterized in that the paste comprises the following raw materials: 35 to 45 parts by weight of silver powders, 5 to 8 parts by weight of iron powders, 4 to 7 parts by weight of 
chromium powders, 3 to 6 pats by weight of attapulgite, 2 to 3 parts by weight of waste engine oil, 1.2 to 3.4 parts by weight of 
stannous sulfate, 0.5 to 0.9 parts by weight of 
sodium carbonate, 1.1 to 2.4 parts by weight of 
potassium titanate, 2.1 to 3.4 parts by weight of 
urea, 2.4 to 3.6 parts by weight of monoammonium 
phosphate, 1.3 to 3.4 parts by weight of polymeric 
ferric sulfate, 2.1 to 4,2 parts by weight of tetradecyl trimethyl 
ammonium chloride, 3o to 40 parts by weight of auxiliary agents, and the proper amount of water. Compared with the prior art, the high-
hardness conductive 
silver paste has the following beneficial effects: a conductive silver circuit that is obtained by 
drying the silver paste has the excellent anti-bending performance; the silk-
screen printing performance is good; the surface 
hardness is high; the 
corrosion-resistant performance is good; and the environment service life is long. And the process requirement of the notebook 
computer keyboard production can be completely met.