Square pipe is a kind of square pipe. Many kinds of material can form square pipe. It's medium, what's it used, where is it used. Most square pipe is made of steel pipe, mostly structural square pipe, decorative square pipe, building square pipe and so on.
Square pipe is a form of address for square pipe, that is, steel pipe with equal side length. The strip is coiled by process treatment. Generally, strip steel is unpacked, flattened, coiled, welded to form a circular pipe, then rolled into a square pipe from the circular pipe and cut into the required length. Usually 50 pieces per bag.
Square pipe can be divided into seamless and welded seams. Seamless square pipe is formed by extrusion of seamless round pipe.
1. Performance Index Analysis of Square Pipe-Plasticity
Plasticity refers to the ability of metal materials to produce plastic deformation (permanent deformation) without destroying under load.
2. Performance Index Analysis of Square Tube-Hardness
Hardness is the index to measure the degree of hardness and softness of metal materials. Pressure hardness method is the most commonly used method to measure hardness in production at present. It uses a certain geometric shape of the pressure head to press into the tested metal material surface under a certain load, and to measure its hardness value according to the degree of pressure.
Common methods include Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) and Vickers hardness (HV).
3. Performance Index Analysis of Square Pipe-Fatigue
The strength, plasticity and hardness discussed above are all mechanical performance indicators of metals under static loads. In fact, many machine parts work under cyclic loads, under which fatigue occurs.
4. Performance Index Analysis of Square Tube-Impact Toughness
The load acting on the machine parts at a great speed is called impact load, and the ability of metal to resist damage under impact load is called impact toughness.
5. Performance Index Analysis of Square Pipe - Strength
Strength refers to the resistance of metal materials to failure (excessive plastic deformation or fracture) under static load. Because the load acts in the form of tension, compression, bending and shearing, the strength can also be divided into tensile strength, compressive strength, flexural strength, shear strength and so on. There is always a certain relationship between various strengths. Tensile strength is usually used as the most basic strength indicator.