Steel tensile strength at yeild is usually over 50,000 psi, aluminium is around 40, 000 psi.Aluminum? I wonder what the tensile strength of that is compared to steel.
Big misconception that round tube is much weaker. For the same diameter there is some minor truth to that but when you're talking about equal mass the tube is stronger. Leave it be what I see is plenty strong enough plus with the shock load being absorbed by the shock the forces involved are not as great as you might think.the load is going through the pivot in shear not tension. So the thought you have is not a concernArcAngel When it arrived I gave it a close oneover and the only thing that concerned me was the rods going through are not round stock steel but pipe so that will be getting changed to round stock and lengthened at the same time !