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Performance indicator of square pipe


Plasticity refers to the ability of a metal material to deform plastically (permanently) without breaking under a load.



Hardness is a pointer to measure the hardness of metal materials. At present, the most commonly used method for measuring hardness in production is the indentation hardness method, which uses an indenter of a certain geometric shape to press the surface of the metal material under test under a certain load, and determines its hardness value according to the degree of indentation.



The strength, plasticity, and hardness discussed earlier are indicators of the mechanical properties of metals under static loads. In fact, many machine parts work under cyclic loads, and under these conditions the parts are fatigued.


Impact toughness

The load acting on the machine at a very high speed is called impact load, and the ability of metal to resist damage under impact load is called impact toughness.



Rhenium strength refers to the resistance of a metal material to damage (excessive plastic deformation or fracture) under static load. Because the load acts in the form of tension, compression, bending, shear, etc., the strength is also divided into tensile strength, compressive strength, bending strength, shear strength and so on. There is a certain relationship between various strengths. In use, tensile strength is generally used as the most basic strength indicator.