Step 3. From the intersection obtained in Step 2, move horizontally to the right and read the value of factor B. This is the maximum allowable compressive stress for the values of t and Ro used in Step 1.
Step 3. From the intersection obtained in Step 2, movehorizontally to the right and read the value of factor B.This is the maximum allowable compressive stress for thevalues of t and Ro used in Step 1.