Technical characteristics


Our lead bronzes have a very good resistance to rust and wear. They offer a long life and good machinability.

CB4

Standard: CC495K
International Standards: more info
Composition in % (Mass fraction)

% min. % máx
Cua 78 82
Ni 2
P 0,1
Pb 8 11
Sn 9 11
Zn 2
Al 0,01
Fe 0,25
Mn 0,2
S 0,1
Sb 0,5
Si 0,01

a Including nickel

CB4

Standard: CC495K

Casting process and designation GC GZ
Tensile Strength
Rm N/mm2 min.
220 220
Yield point 0,2% Rp0,2 N/mm2 min. 110 110
Elongation A % min. 8 6
Brinell hardness HBW min. 70 70

CB4

Standard: CC495K

Density kg/dm3 9
Specific heat j/g. k 0,376
Terminal expansion 10-6 k 18,7
Thermal conductivity W/m. ºk 54
Electrical conductivity m / (Ohm.mm2) 6