Wednesday 21 December 2011

Angle Steel Bar Can Be Cut To Different Needs

Angle Steel Bars are a type of structural steel which are L shaped. Other forms include the T beam, Z shape, Channel, T shaped, Bar, Rod, Plate, and Asymmetrical I Beams.

These angle steel bars can be made out of a number of different materials each of which contain different properties and thus are used for different purposes. Carbon Steels are generally used for Structural Shapes, Pipes, Plates and Tubing. High Strength Low Alloy steels are used for the same as Carbon but also W Shapes.  Corrosion Resistant High Strength is only used for Structural Shapes and plates whereas Quenched and Tempered Alloy Steels are used for Structural Plates, Plates and Boilers and Pressure Valves.

The composition of the steel involved also changes the properties of the material. Often coatings are applied to steel to attempt to increase the Critical Temperature which is the temperature in which the steel is unable to bear its load. This is very important in cases of fires where injuries to persons or items may happen as the steel will no lobger be able to provide the mechanical strenghth.  The Thermal Properties of Steel vary depending on the composition of the Alloy, i.e. the substances other than iron that are used to form the steel.  

The Autenizing temperature which is the temperature at which the steel becomes a crystal structure is used to compare different alloys. Pure Iron has an Autenizing temperature of 900 Centigrade, Eutectic is far lower, this has less than 1% Carbon and when more carbon is added, this temperature will increase again. When the Carbon levels are above 2.1%, the name of the substance  is no longer steel but Cast Iron.

There are number of ways in which Steel can be bent including Press Brake Forming, Three Point Bending, Folding, Wiping, Rotary Bending, Elastomer Bending and Jogging. There are three types of Press Brake Forming and these are Air Bending, Bottoming and Coining and in all of these a punch provides the force required for bending the steel.

There are a number of uses for angle steel bar and they are generally Structural, the steel helps provide a force to hold items in place. Therefore it is imperative that the angle produced is so exact and various calculations are used to ensure that this is the case.  There are many different companies available which are able to offer specialised cutting allowing the exact size and angle to be formed for different needs.

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