Q420C is a low-alloy high-strength structural steel plate, and the implementation standard of Q420C steel plate is: GB/T1591 special technical conditions. […]

Q420C steel executive standard: GB1591-2008
Q420C steel only has a little higher tensile strength. The yield strength of Q235 is 235N/MM^2, while the yield strength of Q420 is 420N/MM^2. […]

Q420B low-alloy high-strength steel has the advantages of high strength, good comprehensive mechanical properties and welding properties, and is used more and more in important architectural steel structure projects. […]

Q420B angle steel has high strength and good fatigue resistance. High toughness and low ductile-brittle transition temperature, good cold forming performance and welding performance; good corrosion resistance and certain wear resistance. […]

Q355D has high yield strength and toughness. Q355D also has the characteristics of wear resistance and easy welding and cutting. It is often used for cutting large parts or welding structural parts. […]