eekpod
If the parts are carrying calculated stresses, then yes.
Here it is in this specification from Oregon dot Section 00560 - Structural Steel Bridges
(c) Plate Cut Edges:
(1) Edge Planing - Plane, mill, grind or thermal cut to a depth of 6 mm (1/4 inch) all sheared edges of plate more than 15 mm (5/8 inch) in thickness and carrying calculated stress.
(2) Flame Cutting - Flame cut structural steel according to paragraph 3.2.2 of AWS D1.5, and as specified.
(3) Visual Inspection and Repair - Visually inspect and repair plate cut edges according to paragraph 3.2.3 of AWS D1.5, and as specified.
(4) Re-entrant Corners - Fillet re-entrant corners to a radius of at least 19 mm (3/4 1 inch) before cutting.
(5) Corners and Edges - Round all corners and edges of steel members, or bevel 2 mm (1/16 inch).
Good Luck
Marshall