Structural Steel Properties

The properties of structural steel have a large influence on how it is used in various applications. The different properties like tensile strength, yield strength and elasticity are given greater importance by engineers since, structural steel is used in construction. Along with the general properties like density, these properties prove to be useful in determining the quality of steel. It is only with the use of high-quality steel that dependable and long lasting constructions are possible. Information about the different structural steel properties is dealt with in this article.
Properties of Structural Steel
There are different properties which affect the performance of structural steel material. It is with the knowledge of these steel material properties that steel is transformed into various shapes for applications in the field of construction.
The mass per unit volume of a material is referred to as its density. The density of steel ranges from 7.85 g/cubic cm - 8.1 g/cubic cm. Let us understand the other properties of steel through following paragraphs.
Thermal Properties
The temperature of austenizing and melting temperature are the important thermal steel properties. Temperature at which iron is converted into austenite crystal structure is referred to as austenizing temperature. This temperature for the pure form of iron is 900 °C. Addition of carbon to pure iron decreases austenizing temperature; the value of austenizing temperature for eutectic steel is 724 °C. There is also a difference in melting points of pure and carbon-added steel. The plain carbon steel has a melting point of 1130 °C. The value of melting temperature for pure steel is 1492 °C.
It is the property which determines the limit up to which a steel material can be stretched without breaking. Fracture point is used to gauge the tensility of a given steel material. It is at the fracture point that the steel material breaks after being subjected to stress. Since, the structural steel possesses greater tensility than other construction material, it is most preferred.
Yield Strength
The capacity to resist deformity is referred to as yield strength of structural steel. The minimum force at which deformation could take place is measured in order to determine the yield strength. Crystalline and atomic structure of steel changes as a result of deformation.
The property of elasticity need to be understood without confusing it with yield strength. Deformation of steel takes place while it is under stress. Point of deformation is the limit for measuring the elasticity of a particular material. The Young's modulus of elasticity is used in the measurement of this property.

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