Elastic Limit - The greatest stress that a material is capable of developing without a permanent deformation remaining upon complete release of the stress.

Electric Furnace Steel - Steel made in any furnace where heat is generated almost always by are. Because of relatively high cost, normally only tool steels and other high value steels are made by the electric furnace process.

Elongation - The amount of permanent extension in the vicinity of the fracture in the tensile or tension test; usually expressed as a percentage of the original gauge length, such as 25% in 2” or 21% in 8”.

Endurance Limit - Also known as fatigue limits a limiting stress, below which metal will withstand without fracture an indefinitely large number of cycles of stress. If the term is used without qualification, the cycles of stress are usually such as to produce complete reversal of flexural stress. Above this limit failure occurs by the generation and growth of cracks until fracture results in the remaining section.

Extra Deep Drawing Steel - Sheet of this designation has superior formability and excellent uniformity.  It is produced from steel having a very low carbon content with stabilizing elements added to make it interstitial free.  It is a non-aging steel sheet with high resistance to thinning during drawing and is suitable for critical forming applications.

Extra Smooth Galvanized - An Extra-Smooth finish is imparted to hot-dip metallic-coated steel sheet by temper rolling after coating to decrease the surface relief that occurs when the molten coating solidifies. The spangle pattern (grain pattern) is made distinctly less visible by the matte finish imparted by the rolling operation. Most Extra-Smooth sheet is intended for either pre-painted or post painted applications.