Calculate the allowable axial compressive load for a pin$-$ended steel tube with an outside diameter of $3$ inches, a wall thickness of $0\mathrm{.}3$ inches, and a length of $6$ feet. The steel's yield strength and modulus should be used in the calculations. Apply either Equation $(17\mathrm{.}14)$ or $(17\mathrm{.}15)$ with a safety factor of $3\mathrm{.}0.$ Take young's modulus as $E=30{10}^3$ksi.