What are the mechanical properties of Q235?
Yield strength: ≥235MPa
Tensile strength: 370–500MPa
Elongation: ≥26%
What are the advantages of Q235?
Low cost, good weldability, good plasticity (easy to bend/stamp)
Moderate toughness, good cold working performance
What are the disadvantages of Q235?
Low strength (not as high as low alloy high-strength steel)
Poor corrosion resistance (prone to rust)
Does Q235 require heat treatment?
No, it can be used directly in its factory condition.
What is the difference between Q235 and Q355?
Q235: Yield strength 235MPa, standard structure
Q355: Yield strength 355MPa, high-strength structure