|
Term
|
Definition
|
| Nodular Pig Iron |
Nodular Pig Iron is also pig iron aimed at the foundry industry but more specifically the ductile iron foundry. This pig iron has slightly lower carbon (4.0% avg) but much lower silicon (.08 % avg) and sulfur (.011% avg). This is required for ductile iron foundries since they must desulfurize the iron before treatment (lower sulfur, less treatment) and the alloy used to produce ductile iron is typically high in silicon so that the base iron must be lower. |
| Non-Metallic Inclusion |
A small piece of material, usually slag that is entrained in the steel resulting in a product defect. |
| Nonferrous |
Referring to metals which do not have iron as the major alloying element. Metals such as aluminum and copper.
|
| Nonmagnetic |
Is not attracted by a magnet. |
| Nonmetallic |
Is neither of a ferrous nor nonferrous nature, and generally means wood, plastic, rubber, dirt and such other materials as cannot be construed as metal. |
