Note B: Maximum, unless otherwise indicated.Note E:For small diameter or thin walls, or both, where many drawing
passes are required, a carbon maximum of 0.040 % is necessary in
grades TP304L and TP316L. Small outside diameter tubes are defined
as those less than 0.500 in. [12.7 mm] in outside diameter and light
wall tubes as those less than 0.049 in. [1.24 mm] in average wall
thickness.