Q345B steel pipe is a common structural steel pipe, and its mechanical property index is one of the important standards to evaluate its quality. This article will introduce the mechanical property index of Q345B seamless steel pipe, including tensile strength, yield strength, elongation and impact toughness.
The mechanical property parameters of low alloy I-beam Q345B are as follows:
Yield strength (Yield Strength): the yield strength of Q345B is ≥ 345MPa. Yield strength refers to the tensile test, the material began to plastic deformation and no longer rebound stress value, is one of the tensile properties of the material index.
Tensile strength (Tensile Strength): Q345B tensile strength of 470-630MPa. tensile strength refers to the tensile test, the ability of the material to resist the tensile force, is the maximum tensile stress of the material.
Elongation (Elongation): The elongation of Q345B is ≥21%. Elongation refers to the degree of extension of the material before fracture in the tensile test, is one of the indicators of the ductility of the material.
Impact toughness (Impact Toughness): Q345B impact toughness is ≥ 34 J. Impact toughness is the energy that can be absorbed by the material when subjected to impact load, is the ability of the material to resist fracture.
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