Jacesmokesloud3261go Jacesmokesloud3261go Engineering Answered the am1004-t61 magnesium tube is bonded to the a-36 steel rod. a torque of 7.5 knâ‹…m is applied to end a. the shear modulus of elasticity for am1004-t61 magnesium alloy is 18 gpa, and for a-36 steel is 75 gpa