Data sheet
Wieland-SB7
Wieland-SB7 is a nickel-containing special brass with hard, wear resistant manganese silicides. It has been specially developed for the function of the freely running slipper shoe. Its high 0.2% proof stress makes it particularly ductile and allows it to be easily bent around the joint of the steel piston. Wieland-SB7 can also be used for other antifriction elements.
Composition (standard values)
Cu 57 %
Mn 2.2 %
Ni 2.0 %
Si 1.1 %
Pb 0.7 %
Zn balance
Material designation
Wieland SB7
DIN/ISO/EN not standardized
Max. load
Suitable for operating pressure of min. 450 bar
Types available
Machined slipper shoes
| Density [g/cm3] | 8.3 |
| Coefficient of thermal expansion (20 - 300 °C) [10-6/K] | 20.5 |
| Thermal conductivity [W/m*K] | 85 |
| Modulus of elasticity (20 °C) [GPa] | 100 |
| Temper | |
| Hardness [HB/HRB] | 150 (HRB 83) |
| Tensile strength Rm [MPa] | 530 |
| 0.2 %-proof stress Rp0.2 [MPa] | 350 |
| Elongation A5 [%] | 10 |
1 MPa = 1 N/mm2
