The framing material used for steel fire-resistant partitions is galvanized steel, with a melting point temperature of 1500°C-1550°C for steel profiles, while aluminum profiles have a melting point of 620°C-660°C. During a real fire, the aluminum profile frame is unable to support the fire-resistant glass, thereby failing to prevent or slow the spread of the flames.

2. With the same cross-section, precision steel profiles can achieve greater spans.

Due to steel's elasticity coefficient being three times higher than that of aluminum, its static load value is significantly greater than that of aluminum extrusions.

4. The slender supporting structure allows for greater design freedom and more innovative architectural structures.

5. The steel's skewness is incorrect by 1/3 on the same profile section.

Under the same load value and deflection, smaller volumes of steel profiles can be utilized.