I. What is Low-Carbon Steel?
Low-carbon steel contains between 0.05% and 0.25% carbon. Its relatively low carbon content gives it excellent ductility and weldability while minimizing distortion under high heat.

II. The Role of Low-Carbon Steel in Structures

1. Enhanced Structural Strength
   Low-carbon steel provides robust strength and toughness, delivering the necessary load-bearing capacity to ensure building stability and safety.

2. Prevention of Brittle Fracture
   While high-carbon steels are prone to brittle fracture, the lower carbon content in this material significantly reduces such risks, ensuring structural reliability.

3. Superior Corrosion Resistance
   Structures exposed to the elements face constant corrosive threats. High-carbon steels accelerate corrosion damage, whereas low-carbon variants inherently resist deterioration—extending a building’s service life.

III. Conclusion
In summary, low-carbon steel’s optimal blend of ductility, weldability, strength, and toughness makes it indispensable for construction. It provides critical structural support while ensuring long-term stability and safety. When selecting structural steel, low-carbon grades remain the definitive choice for enduring performance.