Quality inspection items for channel steel include dimensional inspection, checking the height, leg width, waist thickness, and length to ensure they meet the standard requirements. Mechanical property inspection, such as testing the yield strength, tensile strength, and elongation, is also crucial to verify its load - bearing capacity. Surface quality inspection examines for defects like cracks, folds, and El análisis de la composición química de óxido . se lleva a cabo para garantizar que el acero contenga la proporción apropiada de elementos, que afecta su rendimiento . métodos de prueba no destructivos, como las pruebas ultrasónicas, se pueden usar para detectar defectos internos .}