Flat-wing beams, or hashs (H), are stronger than conventional beams.

These beams are produced with ST37 and ST44 and Hash ST52 standards.

These beams are produced with ST37, ST52 and ST44 materials and are used in industries such as bridge construction, tower construction, dam construction and similar industries that require more resistance.

ST52 steel has more use than other structural steels in cases that require high strength and durability due to the presence of more manganese and higher elasticity.