Q: What are the cutting methods for Q235 steel plates?
A: Common cutting methods include flame cutting, plasma cutting, laser cutting, and shearing. Different thicknesses require different cutting methods.
Q: What is the common thickness range of Q235 steel plates?
A: Hot-rolled Q235 steel plates commonly range in thickness from 3 to 200 mm. Thin plates (<3 mm) are mostly cold-rolled or hot-rolled thin plates.
Q: What are the main application areas of Q235 steel plates?
A: Widely used in building structures (such as steel beams and columns), engineering machinery (such as equipment bases), automotive parts, containers, bridge railings, and general mechanical parts.
Q: Can Q235 steel plates be used to manufacture pressure vessels?
A: No, pressure vessels require special pressure vessel steel (such as Q345R). Q235's toughness and fatigue resistance do not meet the requirements.
Q: What are the limitations of using Q235 steel plates in low-temperature environments?
A: Q235A/B is not suitable for low-temperature (<0℃) environments. For low-temperature environments, Q235C/D grade or higher performance low alloy steel plates should be selected.