Terms used in the Metals Industry
There are 182 entries in this glossary.P
| Term | Definition |
|---|---|
| Pack Marks |
Small densely distributed abrasions on the surface of sheet or foil resulting from rolling in packs of two or more. |
| Partial Annealing |
Thermal treatment given cold worked metal to reduce the strength to a controlled level. |
| Passivation |
Passivation is the process of making a material "passive" in relation to another material prior to using the materials together. |
| Patterned or Embossed Sheet |
Sheet on which a pattern has been impressed on one or both sides. |
| Physical Properties |
The properties, other than mechanical properties, that pertain to the physics of a material; for example, density, electrical conductivity, thermal expansion. |
| Pickup |
Small particles of oxide adhering to the surface of a product. |
| Pinch Marks |
Pressed-in folds generally running parallel to the direction of rolling. |
| Pipe |
Tube in standardized combinations of outside diameter and wall thickness commonly designated by "Nominal Pipe Sizes" and "ANS Schedule Numbers". |
| Pipe, Seamless |
Pipe produced from hollow extrusion ingot. |
| Pipe, Structural |
Extruded pipe, which may contain an extrusion seam, suitable for application not involving internal pressure. |
| Pit |
A sharp depression in the surface. |
| Plate |
A rolled rectangular section of thickness 0.250 inch or more, with either sheared or sawed edges. Alclad plate: Composite plate consisting of an aluminum alloy core having on both surfaces (if on one surface only, Alclad One Side Plate) a metallurgically bonded aluminum or aluminum alloy coating that is anodic to the core, thus electrolytically protecting the core against corrosion.
|
| Polishing |
A mechanical finishing operation for the purpose of producing a gloss or luster on the surface of a product. |
| Preheating |
A high temperature soaking treatment to provide a desired metallurgical structure. Homogenizing is a form of preheating. |