Grades: 
                      304, 304L, 316, 316L, 321, 347, 410/403, 405 and 418
                    Specifications: 
                      A182, A276, A479, A312 and A511
                    How 
                      to calculate Weight Per Foot: (OD - Wall) X Wall X 10.68 
                      lbs. = lbs./ft.
                    EXAMPLES:
                      1. 2.750" - .300" x .300" x 10.68 lbs. = 
                      7.8 lbs. Per Foot
                      2. 2.750" - .325" x .325" x 10.68 lbs = 8.42 
                      lbs. Per Foot