Q: What is the specific yield strength value of Q235 steel plate?
A: For Q235 steel plates with a thickness ≤ 16mm, the yield strength is ≥ 235MPa. The yield strength decreases slightly with increasing thickness; for example, for thicknesses > 16~40mm, the yield strength is ≥ 225MPa.
Q: What is the tensile strength range of Q235 steel plate?
A: The tensile strength is 375~500MPa.
Q: What is the elongation requirement for Q235 steel plate?
A: Elongation after fracture ≥ 26% (thickness ≤ 16mm). The elongation requirement decreases slightly with increasing thickness.
Q: What is the impact energy requirement for Q235D steel plate?
A: At -20℃, the impact energy (Akv) is ≥ 27J.
Q: What is the hardness range of Q235 steel plate?
A: Brinell hardness (HB) is usually between 110 and 150, with the specific value fluctuating slightly depending on the rolling process.