1. The performance index analysis - the plastic scaffolding tubes
Plastic refers to metal materials under loading, the plastic deformation (permanent deformation) and does not destroy the ability.
2. The performance of the square scaffolding tubes - hardness index analysis

The pointer to the hardness was measured degree of hard and soft metal materials. At present in the production of measuring hardness is pressed into the hardness of the most commonly used method, it is to use a certain geometry head to a certain load tested down into the surface of the metal material, according to the degree by the determination of the hardness value.

The commonly used methods are brinell hardness (HB) and rock well hardness (HRA, HRB, HRC) and vickers hardness (HV) and other methods.

3. The performance index analysis of square scaffolding tubes - fatigue
Discussed earlier strength, plasticity and hardness are Pointers on the mechanical properties of the metal under the action of static load. In fact, many machine parts are working under cyclic load, under the condition of the parts will get tired.

4. The square scaffolding tubes performance index analysis and impact toughness
With great speed of load acting on the object known as impact load, the metal's ability to resist damage under impact load is called the impact toughness.

5. The performance of the square scaffolding tubes - strength index analysis
Intensity refers to the metal material under static loading resistance destruction (excess plastic deformation or fracture) performance. As a result of the action of load way has the form such as tensile, compression, bending, shear, so the strength also divided into tensile strength, compressive strength, bending strength, shear strength and so on.

Always have a connection between various strength, more commonly in use in the strength of the tensile strength as the most basic pointer.