Eastern Alloys manufactures the complete range of zinc die casting alloys. ZAMAK alloys were first developed during the 1920's by The New Jersey Zinc Company. The name ZAMAK draws upon the basic metallurgy of the alloy group: Z-Zinc, A-Aluminum, MA-Magnesium, and K-Kopper (e.g., German). In the United States, ZAMAK 3 is the most common alloy for hot chamber die casting. With a combination of superior mechanical properties and low melting/manufacturing costs, it fulfills the needs for most die casting applications. Other ZAMAK alloys include ZAMAK 2, ZAMAK 5, and ZAMAK 7. Common to each alloy is a consistent Aluminum content range, however, the alloys differ in specification by varying amounts of copper, magnesium, and nickel - resulting in different mechanical and physical properties.

#3 Ingots stacked on alloy feet. Eastern Alloys is the global leader in ZA alloy manufacturing and process technology. High strength ZA alloys were originally engineered for gravity casting, but now own an increasing percentage of the die casting market. Today, there are three ZA alloys: ZA8, ZA12, ZA27. ZA8 is the only ZA alloy that can be HOT chamber die cast due to the relatively low melting temperature (708-759 F). ZA12 and ZA27 can be COLD chamber die cast at higher melting temperatures (875-1050 F).

The ACuZinc is another zinc die casting alloy-, developed by General Motors Research and Development engineers. At the outset ACuZinc alloys were limited to production of GM-specific parts. More recently, however, the GM licensing agreement allows for a broader scope of applications. With the addition of high percentages of copper, ACuZinc alloys were developed to improve the wear resistance and creep properties in the zinc alloy family. Today there are two ACuZinc alloys: ACuZinc 5 (5% Copper), and ACuZinc 10 (10% Copper), and are used in a variety of automotive applications. ACuZinc 5 is HOT chamber die cast due to its lower melting temperature, whereas ACuZinc 10 is COLD chamber die cast.

The process of casting these zinc die casting alloys utilize an hydraulic press that allows metal to be injected into a cavity at extremely high pressures. The term "HOT" (as in HOT chamber) refers to the fact the metal pump (gooseneck) is immersed in the hot metal. In COLD chamber die casting, the metal is ladled into a holding sleeve until a plunger forces the metal into the cavity. These processes are designed for high volume applications, and are cast at "net-shaped" precision.

Formability - Zinc Strip can be stamped, deep drawn, roll-formed, hydroformed, coined and impact extruded. It is non-abrasive and self-lubricating, which extends tool and die life.
No Annealing - Zinc strip requires no annealing during successive forming operations.
Electrical Properties - Solid zinc strip alloys have good electrical properties with electrical conductivity equal to 70/30 brass.
Dent Resistance - Solid zinc strip is ideal for molding or trim. It consistently scores high ratings in Gravelometer tests utilized by the automotive industry.
Chemical Properties - Solid zinc strip possesses unique chemical/electrical properties that enable it to function in galvanic cathodic protection and battery anode configurations.
Joining and Soldering - Solid zinc strip is easily soldered to itself and other materials. It can be readily joined as well by resistance welding and other assembly methods.
,b> Corrosion Resistant - Solid zinc strip is resistant to weather and atmospheric corrosion. Exposure to the atmosphere causes the formation of a zinc carbonate film that provides long-term protection.
Finishing - Being one of the most versatile non-ferrous metals available, solid zinc strip can be plated, painted, lacquered, powder coated, or base coat/clear coat with excellent adhesion and durability.
Shielding Properties - Solid zinc strip is an effective EMI/RFI shield.
Non-Magnetic - Solid zinc strip is non-magnetic.
Non-Sparking - Solid zinc strip is non-sparking, making it the ideal choice for parts utilized in hazardous environments.
Environmentally Safe - An environmentally safe material, zinc is an essential element of life naturally existing in the earth and in all living things.
Cost-Effective - Solid zinc strip is an economical alternative to other metals such as copper and brass. It will produce more pieces per kilogram unit of weight due to the weight density of zinc when compared to other metals.
Recyclable - Solid zinc strip is 100 percent recyclable. We recycle zinc scrap produced throughout our various processes

Jarden Zinc Products is the largest producer of zinc strip and zinc strip products in North America serving a variety of markets. With more than 350,000 square feet (32,500 square meters) of manufacturing space, Jarden has the capacity to cast and roll 120,000 metric tons of finished strip each year. As an Jarden customer, you can be sure your zinc strip will be supplied on time and to your exacting standards.

Solid Zinc Strip - Cast and Rolled to Your Standards Using only 99.995% pure special high-grade zinc, Jarden crafts alloys through the precise introduction of titanium, copper, magnesium, manganese and other metals. The alloy specified, based on the customer's physical and mechanical requirements, will be continuously cast and rolled into solid zinc strip to gauges ranging from 0.0035 inches (0.089 mm) to 0.375 inches (9.525 mm).

Eastern Alloys manufactures the complete range of zinc die casting alloys. ZAMAK alloys were first developed during the 1920's by The New Jersey Zinc Company. The name ZAMAK draws upon the basic metallurgy of the alloy group: Z-Zinc, A-Aluminum, MA-Magnesium, and K-Kopper (e.g., German). In the United States, ZAMAK 3 is the most common alloy for hot chamber die casting. With a combination of superior mechanical properties and low melting/manufacturing costs, it fulfills the needs for most die casting applications. Other ZAMAK alloys include ZAMAK 2, ZAMAK 5, and ZAMAK 7. Common to each alloy is a consistent Aluminum content range, however, the alloys differ in specification by varying amounts of copper, magnesium, and nickel - resulting in different mechanical and physical properties.

Eastern Alloys is the global leader in ZA alloy manufacturing and process technology. High strength ZA alloys were originally engineered for gravity casting, but now own an increasing percentage of the die casting market. Today, there are three ZA alloys: ZA8, ZA12, ZA27. ZA8 is the only ZA alloy that can be HOT chamber die cast due to the relatively low melting temperature (708-759 F). ZA12 and ZA27 can be COLD chamber die cast at higher melting temperatures (875-1050 F).

The ACuZinc is another zinc die casting alloy-, developed by General Motors Research and Development engineers. At the outset ACuZinc alloys were limited to production of GM-specific parts. More recently, however, the GM licensing agreement allows for a broader scope of applications. With the addition of high percentages of copper, ACuZinc alloys were developed to improve the wear resistance and creep properties in the zinc alloy family. Today there are two ACuZinc alloys: ACuZinc 5 (5% Copper), and ACuZinc 10 (10% Copper), and are used in a variety of automotive applications. ACuZinc 5 is HOT chamber die cast due to its lower melting temperature, whereas ACuZinc 10 is COLD chamber die cast.

The process of casting these zinc die casting alloys utilize an hydraulic press that allows metal to be injected into a cavity at extremely high pressures. The term "HOT" (as in HOT chamber) refers to the fact the metal pump (gooseneck) is immersed in the hot metal. In COLD chamber die casting, the metal is ladled into a holding sleeve until a plunger forces the metal into the cavity. These processes are designed for high volume applications, and are cast at "net-shaped" precision.

ZA alloys were initially developed for gravity casting. Their mechanical properties compete directly with bronze, cast iron and aluminum using sand, permanent mold and plaster mold casting methods. Beginning in the late 1950's and continuing into the 1970's, Noranda, New Jersey Zinc Co. Ltd., St. Joe Mineral Co. and ILZRO contributed to development of the ZA alloy group. Zinc and Aluminum are the major alloy constituents, along with other minor additions of magnesium and copper. The numbers associated with the name represent the amount of aluminum in the alloy (i.e. ZA8 has 8% aluminum). Distinguishing features of ZA alloys include high as-cast strength, excellent bearing properties, as well as low energy (melting) requirements.

Eastern Alloys manufactures the entire ZA alloy group. There are many different gravity-casting processes such as permanent mold, graphite permanent mold, plaster, and sand. In general these processes are used for low to medium volume requirements, and also as a prototyping technique.

An attractive, high quality appearance in circulation coinage is not only important; it's a matter of national pride. As such, our zinc coin blanks are supplied with a bright, high-quality surface that is ready for striking into coins. Available in red, yellow or white finish, the natural properties of zinc provides for superior coinability suitable for the intricate design criteria found in circulation coins.

Today, countries around the world are concerned about the cost of producing quality circulation coins especially when the cost to produce approaches or exceeds the face value of the coin. Zinc is a very cost effective material which requires less energy/kg to produce and requires no annealing. Zinc is an abundant material with a historically stable market unlike other alternative metals. Zinc's excellent ductility results in superior die fill (coinability), thus extending tool and die life for enhanced savings. Any resulting scrap is 100% recyclable.

Given these advantages, zinc coin blanks are the most cost effective coinage material available today, providing the best opportunity for the creation or maintenance of positive seigniorage.

As a producer of high-quality zinc coin blanks for more than 20 years, Jarden's manufacturing facilities and technically trained, experienced employees are the first choice of many countries, including the United States and Canada.

Copper-Plated
The copper-plated zinc coin blanks are manufactured utilizing our high-speed electroplating process that produces a bright, high-quality finished coin blank. The copper layer gives the coin blank a "red" finish. An added benefit of our process is the deposit of additional plating on the rim of the coin, an area this is particularly subject to wear, thereby increasing the life of the coin. With more than 20 years of circulation history, the copper-plated zinc coin blank is a proven low-cost alternative to other coinage metals.

Bronze-Plated
Our electroplating experience led to the development of the bronze-plated zinc coin blank. This blank is produced utilizing our proprietary electroplating process. The zinc substrate is plated with a copper layer followed by a bronze layer that gives the coin blank a bright, high-quality "golden" finish. An added benefit of our process is the deposit of additional plating on the rim of the coin, an area this is particularly subject to wear, thereby increasing the life of the coin.

Aluminum Clad
The aluminum-clad zinc coin blank was developed utilizing a roll bonding process where two outer layers of aluminum are roll bonded to a zinc core. The aluminum gives the coin a bright "white" surface finish while the zinc provides weight to the coin. The weight of the zinc reduces clogging of the press during stamping, increasing productivity. The web scrap can be collected from the blanking process and recycled to make zinc die casting alloys. Aluminum-clad zinc coins have the look and feel of real money.