Chapter 7901 — Customs Tariff Headings

99.99% Pure Zinc Ingots

High-purity zinc ingots containing 99.99% zinc by weight, used primarily in the production of zinc alloys and galvanizing processes. This unwrought zinc qualifies under tariff item 7901.11.00 due to its exceptional purity level.

99.99% Zinc Pigs

Large cast pigs of ultra-pure zinc at 99.99% concentration, used in primary smelting and alloy production. This product fits tariff item 7901.11.00 as unwrought, non-alloyed zinc with the maximum specified purity.

Battery-Grade 99.99% Zinc Slabs

High-purity zinc slabs at 99.99% for alkaline battery anodes, minimizing impurities affecting performance. Tariff item 7901.11.00 applies to this unwrought, non-alloyed form.

Die-Casting 99.99% Zinc Slabs

Slabs of 99.99% pure unwrought zinc for high-precision die-casting alloys base stock. Tariff item 7901.11.00 for top-tier non-alloyed zinc.

Galvanizing 99.99% Zinc Pigs

Premium pigs of 99.99% pure zinc for hot-dip galvanizing steel structures. Unwrought non-alloyed zinc per tariff item 7901.11.00 due to exact purity match.

High-Purity Zinc Slabs

Rectangular slabs of unwrought zinc with 99.99% purity, ideal for remelting in die-casting and chemical applications. Classified under tariff item 7901.11.00 as non-alloyed zinc meeting the highest purity specification.

Pharma-Grade Zinc Ingots

99.99% pure zinc ingots meeting pharmaceutical impurity standards for medicinal compound production. Classifies as unwrought non-alloyed zinc under tariff item 7901.11.00.

Primary 99.99% Zinc Metal

Primary smelted unwrought zinc metal slabs or ingots at 99.99% purity for galvanization and battery production. Precisely classified under tariff item 7901.11.00 for its superior non-alloyed purity.

Spectrographic Grade Zinc Ingots

Specialty 99.99% zinc ingots for spectroscopic standards and analytical uses, ultra-low impurities. Falls under tariff item 7901.11.00 as unwrought non-alloyed zinc of highest purity.

Ultra-Pure Zinc Blocks

Cast blocks of 99.99% pure unwrought zinc for precision applications like electronics and pharmaceuticals. Meets tariff item 7901.11.00 criteria as the highest grade of non-alloyed zinc.

Casting-Grade Zinc Ingots

Casting-grade zinc ingots refined for casting applications, containing less than 99.99% zinc by weight and not alloyed. These unwrought ingots are melted and poured into molds to produce die-cast parts for automotive and industrial uses.

Die-Casting Zinc Billets

Cylindrical zinc billets of casting grade, less than 99.99% pure and non-alloyed, designed for melting in hot-chamber die casting machines. These unwrought billets are used primarily for producing zinc alloy components after further processing.

Electrolytic Zinc Ingots 99.90%

Unwrought zinc ingots at 99.90% purity from electrolytic refining, used in die-casting and chemical manufacturing. These ingots are non-alloyed and contain less than 99.99% zinc, making them suitable for various industrial applications.

Electrowon Zinc Plates 99.91%

Cathode plates of electrowon zinc at 99.91% purity, unwrought for melting. These plates are non-alloyed and contain less than 99.99% zinc, suitable for further processing in various industries.

Foundry Zinc Slabs

Rectangular slabs of casting-grade zinc, non-alloyed and containing less than 99.99% zinc, used by foundries for melting into casting pots. These unwrought slabs are ideal for gravity and low-pressure casting processes.

High-Purity Slab Zinc 99.95%

Unwrought zinc in slab form containing 99.95% zinc by weight, produced via electrolysis for use in galvanizing and alloy production. These slabs are non-alloyed and contain less than 99.99% zinc.

Refined Zinc Billets 99.95%

Unwrought refined zinc billets containing 99.95% zinc, cast for extrusion into wires or sheets. These billets are non-alloyed and contain less than 99.99% zinc, suitable for further processing.

Secondary Casting Zinc

Recycled secondary zinc of casting grade, containing less than 99.99% zinc and free of alloying elements, supplied in ingot form for casting applications. Produced from scrap melting and refining, these unwrought ingots are suitable for various casting processes.

Secondary Zinc Cakes 99.88%

Unwrought zinc cakes from secondary recovery at 99.88% purity for brass production. These cakes are non-alloyed and contain less than 99.99% zinc, meeting the chapter's purity requirements despite their secondary origin.

Zinc Casting Pigs

Pig-shaped castings of zinc for remelting in casting operations, non-alloyed with zinc content under 99.99% by weight. These unwrought forms are supplied to metal casters for producing intricate parts.

Zinc Conical Anodes Alternative 99.94% (Non-Anode Use)

Conical zinc castings at 99.94% purity sold for remelt, not as anodes. These unwrought castings are non-alloyed and contain less than 99.99% zinc, suitable for various casting applications.

Zinc Jumbo Blocks 99.96%

Large unwrought jumbo blocks of 99.96% zinc for foundry remelt. These blocks are non-alloyed and contain less than 99.99% zinc, suitable for various casting and galvanizing applications.

Zinc Notch Bar 99.93%

Notch-bar form unwrought zinc at 99.93% purity, used in continuous galvanizing lines. These bars are non-alloyed and contain less than 99.99% zinc, conforming to the chapter's zinc not alloyed specifications.

Zinc Pigs 99.92% Purity

Cast unwrought zinc pigs at 99.92% zinc content from primary smelting, ideal for remelting in galvanizing baths. These pigs are non-alloyed and contain less than 99.99% zinc.

Zinc Skim Blocks 99.85%

Refined skim blocks from zinc skimming at 99.85% purity for general remelt. These blocks are non-alloyed and contain less than 99.99% zinc, meeting the chapter's purity requirements.

ACuZinc 5 Zinc Alloy Pig

ACuZinc 5 pigs are unwrought castings of a zinc-copper-aluminum alloy, with zinc as the predominant metal by weight. They are used as feedstock for die casting and meet the chapter definition of a zinc alloy since the total content of other elements exceeds 2.5%.

AlZamax Zinc Alloy Billet Stock

AlZamax billets are unwrought zinc alloy stock designed for hot-chamber die casting, with zinc as the predominant metal and low iron content. They are used to produce decorative hardware and meet the definition of a zinc alloy under chapter 79.

CDA 779 Zinc Alloy Ingots

CDA 779 ingots are unwrought zinc-aluminum-copper alloy castings conforming to Copper Development Association specifications. Zinc predominates by weight, and the total alloying elements exceed 2.5%, qualifying them as zinc alloys under chapter 79.

EZAC3 Zinc Alloy Casting Ingots

EZAC3 ingots are unwrought zinc-aluminum-copper alloy castings used for thin-walled pressure die castings, particularly in telecommunications housings. Zinc is the predominant metal, and the alloying elements exceed 2.5% by weight, meeting the chapter 79 definition of zinc alloys.

Kirksite Zinc Alloy Sheet Stock

Kirksite is a zinc-lead-copper alloy supplied in unwrought sheet stock form for tooling and stretch forming dies. Zinc predominates by weight over other elements, and the alloying content exceeds 2.5%, qualifying it as a zinc alloy under chapter 79.

Marine Grade Zinc Alloy Blocks

Marine grade zinc alloy blocks are unwrought castings optimized for use as seawater anodes in cathodic protection systems. Zinc is the predominant metal, and the alloying elements exceed 2.5%, meeting the definition of a zinc alloy under chapter 79.

SuperZinc Zinc Alloy Master Alloy

SuperZinc master alloy slabs are unwrought zinc-based alloys containing modifiers for grain refinement in aluminum foundries. Zinc predominates by weight, and the total alloying elements exceed 2.5%, qualifying them as zinc alloys under chapter 79.

Yellow Brass Zinc Alloy Substitute Ingots

Yellow brass zinc alloy substitute ingots are unwrought zinc-heavy alloys designed to mimic the properties of yellow brass at lower cost. Zinc predominates by weight, and the alloying elements exceed 2.5%, meeting the chapter 79 definition of zinc alloys.

Z-12 Zinc Alloy Slabs

Z-12 slabs are unwrought zinc alloy forms with approximately 86% zinc and 12% aluminum, used for sand casting applications requiring high impact resistance. Zinc predominates by weight, and the alloying elements exceed 2.5%, qualifying them as zinc alloys under chapter 79.

ZA-8 Zinc-Aluminum Alloy Ingots

ZA-8 ingots are gravity casting zinc alloy ingots with about 91% zinc, 8% aluminum, and trace elements, supplied in unwrought form for foundry use. Zinc predominates by weight, and the total alloying elements exceed 2.5%, meeting the chapter 79 definition of zinc alloys.

Zamac 8 Zinc Alloy Anode Ingots

Zamac 8 ingots are unwrought zinc-based alloy castings used for sacrificial anodes in cathodic protection systems, particularly for marine and offshore structures. Zinc is the predominant metal, and the alloying elements exceed 2.5%, qualifying them as zinc alloys under chapter 79.

Zamak 3 Zinc Alloy Ingot

Zamak 3 ingots are high-pressure die casting zinc alloy containing approximately 96% zinc with aluminum, magnesium, and copper, supplied in unwrought form for melting and casting. Zinc predominates by weight, and the total alloying elements exceed 2.5%, meeting the chapter 79 definition of zinc alloys.

Zamak 5 Zinc Alloy Billets

Zamak 5 billets are unwrought forms of a zinc-based die casting alloy with enhanced strength due to higher aluminum and magnesium content. Zinc exceeds other elements by weight, and the alloying elements exceed 2.5%, qualifying them as zinc alloys under chapter 79.

Zn-4Al Zinc Alloy Slabs

Zn-4Al slabs are unwrought zinc alloy forms for general foundry use, with zinc as the predominant metal and aluminum as the main alloying element. The total alloying content exceeds 2.5%, meeting the chapter 79 definition of zinc alloys.