CuSn5Zn5Pb5 (CC491K)

 

Bronze essentially used in foundry for the Faucets. For the semi-products (continuous casting), it is the grade that fits to the STANDARDS regulating the materials that can be used in the fixed water distribution networks for the DOMESTIC CONSUMPTION.

 

Chemical compound (EN 1982)

Agent:
Cu
Ni
Pb
Sn
Zn
P
Al
Fe
Mn
Sb
S
Si
Mini :

83,0

-

4,0

4,0

4,0

-

-

-

-

-

-

-

Maxi :

 87,0

 2,0

 6,0

 6,0

6,0

 0,10

 0,01

 0,3

 -

0,25

0,10

 0,01

 

Mechanical characteristics (EN 1982):

Process

Tensile strength

Rm N/mm˛ min.

Conventional elastic limit at 0,2%

Rp0,2 N/mm˛ min.

Stretching

A % min.

Hardness Brinell

min.

Sand slinging (GS)

200

90

13

60

Die casting (GM)

220

110

6

65

Centrifuged (GZ)

250

110

13

65

Continuous casting (GC)

250

110

13

65

 

Average physical and mechanical properties (For information only):

Average physical properties:
Liquidus temperature (°C)
Solidus temperature (°C)
Solidification range (°C)
Mass volume at 20°C (kg/dm3)
Coefficient of linear expansion (10-6/°C)
1010
855
155
8,80
18
Massive heat capacity at 20°C (J/kg.K)
Heat conductivity at 20°C (W/m.K)
Electric conductivity at 20°C (%IACS)
Electric resistivity at 20° C (10-8 W.m)
Electric conductivity
m/W.mm²
376
71
15
11,5
8,5
Average mechanical properties:
Young's modulus (MPA)
Modulus of twisting (MPA)
Poisson's ratio
100000
37000
± 0,35