Q355 is a kind of steel. It is a kind of low-alloy high-strength structural steel, widely used in bridges, vehicles, ships, buildings, pressure vessels, special equipment, etc., where "Q" means yield strength, 355 means that the yield strength of this steel is 355MPa, and will change with time. As the thickness of the material increases, its yield value decreases.
Q355 is a low-alloy high-strength structural steel.
Application fields of Q355:
Q355 steel is widely used in bridges, vehicles, ships, construction, pressure vessels, special equipment and other fields.
Q355 steel is favored for its excellent welding performance, toughness, processability and corrosion resistance.
Material characteristics of Q355:
The yield strength of Q355 steel is 355MPa, which means that it can resist an external force of 355MPa without plastic deformation under certain conditions.
The yield value of Q355 steel will decrease as the thickness of the material increases.
The carbon content of Q355 steel is between 0.1% and 0.25%, and alloying elements such as manganese , silicon , vanadium , niobium and titanium are added, and the total alloy content is approximately 3%.
Comparison between Q355 and Q345:
Q355 is the successor of Q345 and has similar physical and chemical properties but with certain improvements.
The density of Q355 is 7.85 grams/cubic centimeter.
