CuPb20Sn5

 

Chemical compound of cast products (NFA 53-707)
Agent:
Sn
Pb
Zn
Ni
Cu
P
Max. other materials
Others
Fe
S
Si
Al
Mini :

4

18

-

 -

reste

-

 -

-

-

-

-

Maxi :

6

23

2

2,5

 

-

1

0,25

-

0,01

0,01

 

Mechanical characteristics of cast products (NFA 53-707):

Process

Tensile strength Rm in MPa

Conventional elastic limit at 0,2 % (for information) Rp0,2 in MPa

Stretching after breaking A %

Hardness Brinell HBS

Y20

150

60

5

-

Y70 or Y80

180

80

7

-

 

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)
Linear expansion coefficient (10-6/°C)
930
760
170
9,30
18
Massive heat capacity at 20°C (J/kg.K)
Heat conductivity at 20°C (W/m.K)
Electrical conductivity at 20°C (%IACS)
Electrical resistivity at 20° C (10-8 W.m)
Coefficient of resistitivy temperature from 0 to 100°C (10-3°C)
376
46
10
17,2
-
Average mechanical properties:
Young's modulus (MPA)
Modulus of twisting (MPA)
Poisson's ratio
75000
28000
± 0,35