Can it be galvanized?
Hot-dip galvanized, with good adhesion and improved corrosion resistance, suitable for outdoor/marine environments.
Common defects?
Inclusions, inclusions, cracks, segregation; excessive S/P leads to hot cracking, thick plates are prone to lamellar tearing.
Difference from SS400?
SS400 (Japanese standard): Yield strength ≥245MPa, same as Q235; Q345 has higher strength, not equivalent.
Recycling value?
High, 100% recyclable and remelted, no harmful substances, environmentally friendly.
Future trend?
Gradually replaced by Q355, old projects can still use Q345, new projects prioritize Q355.