What is the difference between Q345B unequal angle steel and Q345B L-section steel

Q345B unequal angle steel has unequal side and equal thickness, for example, 150 * 90 * 12, sides are 150 and 90, and the thickness is 12. Q345B Q345B L-section steel is unequal in thickness, such as 300 * 90 * 11 * 16: edges are 300 and 90, thickness is 11 and 16.

L-section steel is a special case of unequal angle steel. Q345B L-section steel, also known as Q345B angle steel with unequal sides and unequal thickness, and it is a new type of profile produced to meet the needs of large ship construction.

Q345B unequal angle steel is widely used in various structures and engineering structures of municipal public, civil and military industries, such as industrial beams, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks, warehouses, etc.