A36 angle steel is widely used in the United States, as it conforms to ASTM A36/A36M standards, which are prevalent in American construction and manufacturing industries. It is also used in many countries that follow or adopt American standards and practices in their engineering projects, such as some countries in South America, the Middle East, and parts of Asia. In addition, due to its cost - effectiveness and versatility, A36 angle steel has gained popularity in emerging economies where infrastructure development is rapid. Contractors and engineers in these regions often choose A36 angle steel for various projects, including residential, commercial, and industrial construction, as well as for mechanical manufacturing applications, because it offers a good balance of performance and affordability.