Zn and Sn in brasses and bronzes
Zn and Sn in brasses and bronzes
(OP)
Dear all
I am in the middle of selecting either a brass or bronze for a pressure /wear situation the pressure is around 350 Lb and the relative movement between the two is for a very short tine
I am wondering what the roles of Zn and Sn play when added for example if I choose a bronze with 40% Zn does it have a better load carrying capability than bronze with only 20% Zn
What does Sn add to the mix ??
Kind regards in advance
Stephen
I am in the middle of selecting either a brass or bronze for a pressure /wear situation the pressure is around 350 Lb and the relative movement between the two is for a very short tine
I am wondering what the roles of Zn and Sn play when added for example if I choose a bronze with 40% Zn does it have a better load carrying capability than bronze with only 20% Zn
What does Sn add to the mix ??
Kind regards in advance
Stephen





RE: Zn and Sn in brasses and bronzes
Bronze alloys contain copper and of course tin as the primary alloying element. The strengthening affect of bronze comes into play with other alloy additions like iron, manganese and aluminum or silicon to form aluminum bronzes.
Before getting into detail regarding the pros and cons of a bronze or brass alloy, what is your specific application?
Will there be lubrication?
Approximate service conditions (temperature/environment)?
RE: Zn and Sn in brasses and bronzes
Spring pressure 350 psi total
kind regards for a great answer
stephen
RE: Zn and Sn in brasses and bronzes
Based on your description, I would probably use a phosphor bronze or manganese bronze alloy.
RE: Zn and Sn in brasses and bronzes
So we had do tuck a few more plates in there to avoid slip ...
Thank you kindly for your help
Stephen
RE: Zn and Sn in brasses and bronzes
Increasing the number of disks will not reduce slippage, only spread the heat over a greater area. To reduce slippage you must increase the pressure holding the disks together.