G Cu Sn10 Zn2
G Cu Sn10 Zn2 Ni2
B Zn4
Lega D
Due to their excellent mechanical characteristics even at operating temperatures near to300 °C and cryogenic temperatures of about -200 °C, these alloys are particularly used for heavily loaded plain bearing shells, marine engine shaft sleeves and rolling mill plants.
With the addition of Ni greater sliding resistance is obtained and higher ultimate tensile strength and these alloys are used in: gears for large operating machines, supports for electrical insulators, large bolts for rolling mills, piston rings for cylinder pistons, flanges and fittings for oil product handling.