660 doesn't contain lead ,it is of shrinkage rate stable after sintering ,good compression resistance and formability ,high strength for parts suppress and good liquidity
used to produce high sterngth and toughness powder by pressing and sintering , powder metallurgy oil bearing ,diamond tools fricition materials and bearing
materials
particle size :-100/-250 mesh
loose density :2.8-3.8
chemical content :
663:Sn over 5.83% Pb over 3% Zn over 5.23%
660: Sn over 6% Zn over5.8%
shape of powder: irregular
used to produce high sterngth and toughness powder by pressing and sintering , powder metallurgy oil bearing ,diamond tools fricition materials and bearing
materials
particle size :-100/-250 mesh
loose density :2.8-3.8
chemical content :
663:Sn over 5.83% Pb over 3% Zn over 5.23%
660: Sn over 6% Zn over5.8%
shape of powder: irregular