Q: What is the tensile strength range of Q235 steel plate?
A: The tensile strength range is 375～500MPa.
Q: What is the elongation (δ₅) requirement for Q235 steel plate?
A: Elongation ≥ 26% to ensure good plastic deformation capacity of the steel plate.
Q: Will the yield strength change when the thickness of Q235 steel plate is > 16mm?
A: It will decrease. For each increase in thickness, the lower limit of the yield strength will be lowered accordingly (e.g., for thicknesses of 16～40mm, the yield strength ≥ 225MPa).
Q: What are the impact test temperature and requirements for Q235B steel plate?
A: V-notch impact test at +20℃, impact absorbed energy ≥ 27J.
Q: What is the impact test temperature for Q235D steel plate?
A: Impact test temperature is -20℃, suitable for low-temperature environments.