Is Q235 suitable for welding?
A: Yes, it has excellent weldability; preheating is usually not required.
Can Q235 be heat treated to increase hardness?
A: Generally not recommended; it is low-carbon steel with limited hardenability.
What thicknesses are available?
A: Typically from 2 mm to 200 mm.
What surface treatments are common?
A: Painting, hot-dip galvanizing, oil coating, or passivation.
What are typical applications?
A: Building structures, bridges, transmission towers, vehicles, boilers, containers, general machinery parts.