Because there is lead inside, it is the most usual grade to solve the difficult cases of friction by combining a good pressure resistance.
Used in the mechanics industry for the manufacturing of rings, bearings, guides..., and generally the parts that are subjected to the pressure with lubrication.
There is a no standardized variation with more important nickel content (CuSn10Pb10Ni3). You will find the average characteristics at the bottom of that page. |
Chemical compound of cast products (NFA 53-707) |
Agent: |
Sn |
Pb |
Zn |
Ni |
Cu |
P |
Max. other materials |
Others |
Fe |
S |
Si |
Al |
Mini
: |
9
|
8
|
- |
- |
reste |
- |
- |
- |
- |
- |
- |
Maxi
: |
11
|
11
|
2 |
2 |
|
0,3 |
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 |
180 |
80
|
7 |
- |
Y70
ouY80 |
220 |
140 |
6 |
- |
|
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) |
940 |
850 |
90 |
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 |
50 |
11 |
15,7 |
- |
Average mechanical properties: |
Young's modulus (MPA) |
Modulus of twisting (MPA) |
Poisson's ratio |
75000 |
28000 |
±
0,35 |
|
Average mechanical characteristics of CuSn10Pb10Ni3 : |
Process |
Rm
in N/mm² |
E
Rp0,2 in N/mm² |
Stretching
after breaking A % |
Hardness
Brinell HBS |
Y80
(Centrifuged) |
230/280 |
180 |
5/10 |
80/90 |
|