Carbon Mild Steel Sheet Ss400 Q235 S235jr Steel Plate

Q: What is the minimum yield strength of Q235 plate?
A: The minimum yield strength of Q235 plate is 235 MPa (for plates with thickness ≤16mm).
Q: What is the tensile strength range of Q235 plate?
A: The tensile strength of Q235 plate is 375~500 MPa.
Q: What is the minimum elongation rate of Q235 plate?
A: For plates with thickness ≤16mm, the minimum elongation rate is 26%. With the increase of plate thickness, the elongation rate requirement will decrease appropriately.
Q: Does Q235 plate need to pass the impact test?
A: - Q235A: No impact test requirement.
Q235B: Impact test at 20℃, minimum impact energy 27J.
Q235C: Impact test at 0℃, minimum impact energy 27J.
Q235D: Impact test at -20℃, minimum impact energy 27J.
Q: What is the hardness range of Q235 plate?
A: The Brinell hardness (HB) of Q235 plate is generally between 120~160, which is a relatively soft steel plate.
Q: How does the thickness of Q235 plate affect its yield strength?
A: With the increase of plate thickness, the yield strength of Q235 plate will decrease. For example, the yield strength of plates with thickness 16~40mm is 225 MPa, and that of plates with thickness 40~60mm is 215 MPa.