F. Where the external offset does not exceed 1/2 the thinner section, the transition may be made by welding as shown by sketch (e) . provided the angle of rise of the weld surface does not exceed 30 deg. and both bevel edges are properly fused.
G. Where there is an external offset exceeding 1/2 the thinner section, that portion of the offset over 1/2t shall be tapered as shown in sketch (f).