Q235B Carbon Structural Steel Characteristics

Q235B is a widely used Chinese carbon structural steel under GB/T standards. It is known for its excellent plasticity, good welding performance, and broad industrial applicability. As a mild steel grade, Q235B is ideal for low-strength structural components.

Its chemical composition includes carbon (≤0.22%), manganese (≤1.40%), silicon (≤0.30%), and very low sulfur and phosphorus levels. This composition ensures good toughness, ductility, and reliable forming behavior. Q235B provides stable properties while being economical.

Q235B is usually delivered in hot-rolled, cold-drawn, or normalized states depending on application requirements. It offers easy weldability, making it suitable for large-scale fabrication and construction projects.

Applications include building structures, bridges, guardrails, steel pipes, angle steel, machinery parts, and general-purpose engineering. Q235B is a preferred choice in industries requiring cost-effective and versatile structural steel.