30-1 has a swinging centerboard
with a bronze "pin". The pin is cracking and worn down a lot.
Should I use Phos Bronze, Aluminum
Bronze or Silicon Bronze to replace it?
Phosphor Bronze (or Tin Bronze)
This alloy typically has a tin content ranging from 0.5% to 1.0%, and a phosphorous range of 0.01% to 0.35%. These alloys are notable for their toughness, strength, low coefficient of friction, high fatigue resistance, and fine grain. The tin content increases the corrosion
resistance and tensile strength, while the phosphorous content increases the wear resistance and stiffness. Some typical end uses for this product would be electrical
products, bellows, springs, washers, corrosion
This is an alloy that can cover both brass and bronze (red silicon brasses and red silicon bronzes). They typically contain 20% zinc and 6% silicon. Red brass has high strength and corrosion resistance and is commonly used for valve stems. Red bronze is very similar but it has lower concentrations of zinc. It is commonly used in the manufacturing of pump and valve components.
This has an aluminum
content range of 6% – 12%, an iron content of 6% (max), and a nickel content of 6% (max). These combined additives provide increased strength, combined with excellent resistance to corrosion and wear. This material is commonly used in the manufacturing of marine hardware
, sleeve bearings and pumps or valves that handle corrosive fluids.