High-Quality Galvanized Steel Angle Iron Bar for Structural Support Q195, Q215, Q235, Q345,

What is the impact energy of Q235?
A: ≥27J (V-notch) at specified temp (B:20°C, C:0°C, D:-20°C); A: no requirIs Q235 weldable?
A: Excellent weldability (low carbon equivalent). Suitable for SMAW, GMAW, SAW; no preheat needed for thin sections.
Can Q235 be heat-treated?
A: Not for strength enhancement (low carbon). Stress-relief annealing (550–650°C) is common; hardening/quenching is ineffective.
What is the density of Q235?
A: ~7.85 g/cm³ (same as mild steel).
What is the melting point of Q235?
A: ~1450–1500°C.