| Grade |
Details |
| Old Mixed Zinc Scrap |
It comprises of clean zinc solids including castings, sheet and
clippings. |
| Old Zinc Die Cast Scarp |
It consists of miscellaneous coated and uncoated zinc die
castings. |
| New Zinc Die Cast Scrap |
It comprises of new uncoated zinc die castings. |
| New Plated Zinc Die Cast Scrap |
It include clean new coated (usually nickel plated) zinc die
casting free of other metals, attachments, and foreign materials. |
| Zinc Borings or Turnings |
Zinc Borings or Turnings contain zinc turnings, borings or
grindings free of excessive oils. |
| Irony Zinc |
This grade of zinc scrap consists of zinc solids contaminated
with iron. Irony zinc shall contain a minimum 70% content of zinc
with maximum 30% of total iron content. The scrap should be free of
excessive oils, plastics or other sweat furnace prohibitive. |
| Remelt Die Cast |
It consists of remelted zinc ingots or pigs from a sweat
furnace operation and should be free of dross or slag materials.
Ingots should be uniform in shape with a minimum of 25 lb, and a
maximum of 75 lb in weight. |
| Remelt Die Cast Sows |
Remelt Die Cast Sows contain remelted zinc slab or sow blocks
from a sweat furnace operation. It should be free of dross or slag
materials. Ingots should be of uniform size with a minimum weight of
500 lb and a maximum of 2,500 lb. |
| Galinizers Top Dross |
Galinizers Top Dross include unsweated zinc skimmings from
continuous galvanizing lines. It should contain a minimum content of
90 % zinc. |
| Galinizers Bottom Dross |
It includes unsweated zinc dross removed from the bottom of a
continuous line galvanizing bath. The grade should contain a minimum
zinc content of 92%. |
| Zinc Dross |
Zinc dross consists of slag, dross, skimmings or spillings from
zinc die cast melting operations. It should contain a minimum zinc
content of 85% and slabs chunks should not exceed 75 lb. |
| Zinc Oxide & ZnO Residues |
Zinc Oxide & ZnO Residues are comprised of assorted zinc or
zinc oxide powders, dusts or residues, free from aluminum or other
metallic content. It may contain low grade or sweated zinc dross and
may include pieces of metallic zinc. |
| Zinc Flue Dust |
This grade contains assorted zinc or zinc oxide content
materials including powders, dusts or residues, derived from bag
houses or EAF dust collection systems. It may contain residues of
iron, cadmium, lead, mercury provided that an analysis complete with
pH specifications accompany the materials. |
| Other Zinc Scrap |
It include any other zinc scrap materials, which are not
included in the other listed grades. |
