Chinese high strength steel material Q345B mechanical properties

Chinese high strength steel material Q345B mechanical properties - Q345B yield strength:
Q345B yield strength or yield point is the material property defined as the stress at which Q345B begins to deform plastically. Prior to the yield point the Q345B material will deform elastically and will return to its original shape when the applied stress is removed, Min. yield strength of material Q345B is 345 MPa. It suffers elongation before it pulls apart, typically at 20-21 percent of its initial length.

Chinese high strength steel material Q345B mechanical properties - Q345B tensile strength:
Q345B tensile strength is the maximum amount of tensile stress that material Q345B can take before failure, for example breaking. Steel tensile strength is expressed in units of force divided by cross sectional area; in the Metric system, this unit is known as the Pascal. One Pascal is a Newton (the force needed to accelerate a one kilogram object to a velocity of one meter per second) per square meter. The tensile strength of material Q345B is rated at 470 to 660 Mpa.