A36 angle steel has specific mechanical properties that define its performance. It has a yield strength of at least 250 MPa (36 ksi) for thicknesses up to 200mm, which indicates the stress at which the steel begins to deform plastically. The tensile strength ranges from 400 - 550 MPa (58 - 80 ksi), showing the maximum stress the steel can withstand before breaking. The elongation of A36 angle steel, for thicknesses up to 50mm and a 200mm gauge length, is at least 20%. This level of elongation demonstrates its ductility, allowing it to deform significantly under load without sudden fracture. These mechanical properties make A36 angle steel suitable for a variety of applications, from general - purpose construction to mechanical manufacturing, where it needs to bear different types of loads and resist deformation.