Zinc Scrap

ZINC (Zn)

Zinc is a silvery blue-grey metal with a relatively low melting point (419.5°C) and boiling point (907°C). When unalloyed, its strength and hardness is greater than that of tin or lead, but appreciably less than that of aluminium or copper. The pure metal cannot be used in stressed applications due to low creep-resistance. For these reasons most uses of zinc are after alloying with small amounts of other metals or as a protective coating for steel.

Zinc Properties: silvery-blue, does not corrode easily, ductile, not very strong Uses: manufacture of other metals such as brass and galvanized iron, batteries, rust-proof paints

Grades of Zinc scrap

Saves OLD ZINC DIE CAST SCRAP Shall consist of miscellaneous old zinc base die castings, with or without iron and other foreign attachments. Must be free of borings, turnings, dross pieces, chunks, melted pieces and skimmings. All unmeltables, dirt, foreign attachments, and volatile substances (such as rubber, cork, plastic, grease, etc.) are deductible. Material containing in excess of 30% iron will not constitute good delivery. 

 

Scabs NEW ZINC DIE CAST SCRAP Shall consist of new or unused, clean, zinc base die castings. Castings to be unplated, unpainted, and free from corrosion. 

 

Scoot ZINC DIE CAST AUTOMOTIVE GRILLES Shall consist of clean, old or used zinc base die cast automotive grilles, free from soldered material. All foreign attachments and extraneous materials are deductible. 

 

Scope NEW PLATED ZINC DIE CAST SCRAP Shall consist of new or unused clean, plated zinc base die castings, free from corrosion. 

 

Score OLD SCRAP ZINC Shall consist of clean dry scrap zinc, such as sheets, jar lids, clean unalloyed castings and anti-corrosion plates. Borings and turnings are not acceptable. Material must not be excessively corroded or oxidized. All foreign attachments and extraneous materials are deductible. 

 

Screen NEW ZINC CLIPPINGS Shall consist of any new pure zinc sheets or stampings free from corrosion. To contain no foreign material or attachments. Printers zinc, such as engravers zinc, lithograph sheets and addressograph plates subject to special arrangements. Printers zinc to be free of routings. 

 

Scribe CRUSHED CLEAN SORTED FRAGMENTIZERS DIE CAST SCRAP, AS PRODUCED FROM AUTOMOBILE FRAGMENTIZERS To be clean, free of dirt, oil, glass, rubber, and trash. To contain a maximum of 5% unmeltables such as free iron, copper, aluminum and other metals. Scroll UNSORTED ZINC DIE CAST SCRAP Produced from automobile fragmentizers. Material to contain about 55% zinc-bearing scrap. Other nonferrous metals such as aluminum, stainless steel, red metal, etc., to be about 40%. Insulated copper wire about 1%. Trash, dirt, glass, rubber, oil, iron, not to exceed 5%. Any variations to be sold by special arrangement between buyer and seller. 

 

Scrub HOT DIP GALVANIZERS SLAB ZINC DROSS (Batch Process) Shall consist only of galvanizers unsweated zinc dross in slab form from hot dip galvanizing (Batch Process) with a minimum zinc content of 92% and shall be free of skimmings and tramp iron. Broken pieces under 2” in diameter shall not exceed 10% of the weight of each shipment. Slabs shall not weigh over 100 pounds each. Heavier pieces acceptable upon mutual agreement between buyer and seller. Material from continuous galvanizing operation is not acceptable. Blocks are acceptable upon mutual agreement.

 

Scull ZINC DIE CAST SLABS OR PIGS Shall consist of melted zinc base die cast materials, in smooth clean solid slabs or pigs. Material to be free from drosses and to contain a minimum zinc content of 90%. To contain a maximum of 0.1% nickel and maximum of 1% lead. Blocks are acceptable upon mutual agreement. Seal CONTINUOUS LINE GALVANIZING SLAB ZINC TOP DROSS Shall consist of unsweated zinc dross removed from the top of a continuous line galvanizing bath, in slab form not weighing in excess of 100 pounds each, with a minimum zinc content of 90%. Heavier pieces acceptable upon mutual agreement between buyer and seller. Shall be free of skimmings. Broken pieces under 2” in diameter shall not exceed 10% of the weight of each shipment.

 

Seam CONTINUOUS LINE GALVANIZING SLAB ZINC BOTTOM DROSS Shall consist of unsweated zinc dross removed from the bottom of a continuous line galvanizing bath, in slab form not weighing in excess of 100 pounds each, with a minimum zinc content of 92%. Heavier pieces acceptable upon mutual agreement between buyer and seller. Shall be free of skimmings. Broken pieces under 2” in diameter shall not exceed 10% of the weight of each shipment. Guidelines for Nonferrous Scrap Institute of Scrap Recycling Industries, Inc. 11 Code Item Code Item 

 

Shelf PRIME ZINC DIE CAST DROSS Shall consist of metal skimmed from the top of pot of molten zinc die cast metal. Must be unsweated, unfluxed, shiny, smooth, metallic and free from corrosion or oxidation. Should be poured in molds or in small mounds weighing not over 75 pounds each. Zinc content shall be minimum of 85%.

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