The wide-flange beam. That innovation, made possible by inventor Henry Grey’s vision and Bethlehem Steel Corp. Chairman Charles Schwab’s gamble, set off a race for the sky that still goes on a ...

The beams are manufactured using a standard wide-flange steel beam that is cut in half longitudinally using a circular- or hexagonal-shaped web cut. The two halves are separated, staggered, and welded ...

The Grey Beam- or Bethlehem Beam- was a wide-flange beam invented by Henry Grey that was said to be lighter and stronger than ordinary I-beams. Bethlehem Steel purchased the rights to them in 1905.