Terms used in the Metals Industry
There are 182 entries in this glossary.E
| Term | Definition |
|---|---|
| Earing |
A characteristic of sheet to form ears when deep drawn or spun. |
| Eccentricity |
Deviation from a common center as, for example, the inner and outer walls of a round tube. The difference between the mean wall thickness and minimum or maximum wall thickness at any one cross section. The permissible degree of eccentricity can be expresssed by a plus and minus wall-thickness tolerance. |
| Electrical conductivity |
Electrical conductivity or specific conductivity is a measure of a material's ability to conduct an electric current. When an electrical potential difference is placed across a conductor, its movable charges flow, giving rise to an electric current. The conductivity is defined as the ratio of the current density to the electric field strength. |
| Elongation |
The percentage increase in distance between two gauge marks that results from stressing the specimen in tension to fracture. |
| Equivalent Round |
The diameter of a circle having a circumference equal to the outside perimeter of other than round tube. |
| Extrusion |
A product formed by pushing material through a die. |
| Extrusion Ingot |
A solid or hollow cylindrical cast form suitable for extruding. |
| Extrusion Ingot, Drilled |
A solid extrusion ingot which has been drilled to make it hollow. |
| Extrusion Ingot, Reamed |
A hollow extrusion ingot which has been machined to remove the original inside surface. |
| Extrusion Ingot, Scalped |
A solid or hollow extrusion ingot which has been machined to remove the original outside surface. |
| Extrusion Seam |
A seam in tube, pipe, or hollow shapes resulting from the pressure bonding at two or more edges in the course of extruding through a spider or porthole die. |