Yes, but you need to keep your units straight, and you have no units for your density. Would that be in g/cm^3?
D = m / V
m = D * V
m = D * (A * l)
m = (2.2g/cm^3) * (pi (690mm)^2 * 3600mm)
m = (2.2g/cm^3) * 5.38m^3
m = 11800kg
D = m / V
m = D * V
m = D * (A * l)
m = (2.2g/cm^3) * (pi (690mm)^2 * 3600mm)
m = (2.2g/cm^3) * 5.38m^3
m = 11800kg