On the difference between Q235 and Q345 plate and use
Q235 steel is an ordinary carbon structural steel, that the old A3 steel its yield point is 235MPa, tensile strength of 375-500MPa. General use more.
Q345 steel is a low-alloy high-strength structural steel, including 16Mn, 12MnV, 14MnNb, 18Nb, 16MnRe, including a class of steel, the yield point of 345MPa, tensile strength of 470-630MPa. Ordinary quality of low alloy steel.
