Tin phosphorus bronze (Qsn6.5-0.1)

Tin phosphorus bronze
Qsn6.5-0.1 Used for making spring contact pieces with good electrical conductivity, wear resistant parts and anti magnetic parts in precision instruments, such as gears, brush boxes, vibration plates, contactors, etc. Tin bronze is a non-ferrous metal alloy with minimum shrinkage, which is used to produce castings with complex shapes, clear Outlines and low air tightness requirements. Tin phosphorus bronze is corrosion-resistant in the atmosphere, seawater, fresh water and steam, and is widely used in steam boilers and Marine ship parts. Phosphor tin bronze has good mechanical properties and can be used as wear-resistant and elastic parts of high precision working machine. Leaded tin bronze is commonly used as wear - resistant parts and sliding bearings. Zinc-tin bronze can be used as high air tightness casting.
Chemical composition
Unit (%) :
Copper Cu: Margin
Sn: 6.0 ~ 7.0
Lead Pb: 0.02 or less
P: 0.10 ~ 0.25
Aluminum Al: 0.002 or less
Iron Fe: 0.05 or less
Si Si: 0.002 or less
Stibium: 0.002 or less
Bi Bi: 0.002 or less
Note: ≤0.1(Impurity)
Mechanical properties of
Tensile strength B (MPa) : ≥470
Longitudinal tensile mechanical properties of bar at room temperature
Sample size: diameter or opposite side distance 5 ~ 12
Hot working temperature 750 ~ 770℃;Annealing temperature 600 ~ 650℃.