Instrument panel beam, pair of brackets, and instrument panel beam assembly

An instrument panel beam that extends in a width direction of an automobile, the instrument panel beam comprising:

• a large-diameter hollow tube having a hollow cylindrical shape;
• and
• a small-diameter hollow tube having a diameter that is smaller than that of the large-diameter hollow tube and having a hollow cylindrical shape,
• wherein
• the large-diameter hollow tube and the small-diameter hollow tube are joined to each other in an axial direction, and
• the small-diameter hollow tube comprises at least two flat plates that extend in a longitudinal direction and at least two bends that are curved in a circumferential direction, the flat plates and the bends being alternately arranged in the circumferential direction.