I have been welding with a flux core wire and finally decided to
upgrade to C25 (Argon/CO2 mix).
I have questions about equipment that I need to buy:
1) I am debating whether to get 40 cu ft or 55 cu ft cylinder
These two cylinders differ in design, not just in size. 40 cu ft has
a flat bottom, while 55 is spherical. Also, 55 cu ft cylinder is
taller, but has smaller diameter than 40 cu ft.
Does the fact that 55 cu ft cylinder has a spherical bottom make it
less prone to leak? (since there is no seam around the bottom)
Or the chance of leaking around the bottom is negligent compared to
chance of leaking at the valve or around the valve?
On the other hand, a 40 cu ft cylinder can stand upright on its flat
So, what are the pros and cons of each?
2) What is the shelf life of C25 mix?
I would rather go for a bigger bottle that would serve me for years,
but if it leaks out, than bigger bottle is a waste of money for me.
How long can I expect 40 cu ft or 55 cu ft cylinders to hold gas? If
they leak relatively fast, I might need to downgrade to a 20 cu ft
11 years ago