The main steel framework for drying kilns, engineered to resist high-temperature deformation and specifically adapted for wood and agricultural product drying applications, is a specialized structural system designed to withstand the rigorous thermal and mechanical demands of industrial drying processes. These steel structures serve as the backbone of drying facilities where lumber, timber components, grains, fruits, vegetables, herbs, and other agricultural commodities undergo controlled moisture reduction under elevated temperatures and carefully regulated airflow conditions. The framework is fabricated using heat-resistant structural steel grades that maintain their mechanical properties, yield strength, and elastic modulus even when exposed to prolonged operating temperatures that would cause ordinary carbon steels to soften, creep, or lose load-carrying capacity. Advanced alloying elements and thermal stabilization treatments are incorporated into the steel composition to minimize…