There are four alloys in the conventional zinc group, which are often referred to commercially as the “Zamak” alloys (an acronym for zinc, aluminum, magnesium and copper). The conventional, or ZAMAK alloys, are commonly named based on their sequential development. Zamak 5 (ASTM AC41A) or Zinc Alloy 5, is the most widely used zinc alloy in Europe. Most cast zinc parts are some grade of zamak, 3, 5 or 7. This is why Zamak jewelleries are firm and solid. Excellent physical and mechanical properties Zamak alloys (particularly #3 and #5) are frequently used in the spin casting industry. It has a higher copper content than Zamak 3, which results in higher strength It has less ductility (decreased elongation) than Zamak 3 High-pressure zinc alloy die casting is one of the most efficient and versatile high-production methods used for manufacturing strong, accurate, and complex metal components. Zamak is most often than not the "mysterious metal" from zippers, buttons, cases, that loses its luster in air rapidly and is brittle. For example, Zamak 3 (ASTM AG40A), or Zinc Alloy 3, is the most widely used zinc alloy in the zinc die casting industry and is usually the first choice when considering zinc for die casting for a number of reasons.It provides the best overall combination of strength, castability, dimensional stability, ease of finishing, and cost. The real problem is not guns like the Davis, which everyone knows is cheap, it's all the fine old firearms names that used to mean quality materials and workmanship, but now often also means zinc based white metal. That's what becomes of using Zamak for gun manufacture. The most common zamak alloy is zamak 3. They have a yellow cad finish that imitates the original. Zamak is a mix alloy of zinc aluminium magnesium and copper that is dipped in silver. Alloy 3: (ZAMAK 3, ZP3, ZL3, ZP0400, ZnAl4, ZDC2) Alloy 3 is the most widely used zinc alloy in North America. It is part of die-casting manufacturing and it has higher aluminium levels than any other alloy. Zamak (formerly trademarked as ZAMAK), also known as Zamac is a family of zinc alloys widely used in common everyday items. HisSoldier, Jan 1, 2013 #15. MedWheeler Member. Zamak is a mixed alloy of zinc, aluminum, magnesium, and traces of copper that is dipped in silver. The hardness gives a bold look and it has a long lifespan. When it comes to zinc die casting, there are two basic families. As such, the zinc die casting is applied in the manufacture of high quality industrial and building materials. These alloys are most commonly die cast. Die casting started in the automotive industry and it is still widely used in the manufacture of automotive components. This is why Zamak pieces of jewelry are firm and solid. I used HCl to test the zinc coating thickness on galvanized steel. Zinc (zamak) is known for its high strength, accuracy, ductility, ease of casting, high thermal and electrical conductivity, and long life. If you're just looking for the color, try eastwood. Pot metal (or monkey metal) is an alloy of low-melting point metals that manufacturers use to make fast, inexpensive castings. Joined: Its popularity is due to an excellent balance of desirable physical and mechanical properties, superb castability and long-term dimensional stability. It would take about 30 seconds to completely remove the zinc from a piece galvanized sheet metal. Besides that, zamak 2, zamak 5 and zamak 7 are also commercially used. Zinc is also known as Zamak alloy: Zamak 2, Zamak 3, Zamak 5 and Zamak 7. The hardness gives a bold look and it … The term "pot metal" came about due to the practice at automobile factories in the early 20th century of gathering up non-ferrous metal scraps from the manufacturing processes and melting them in one pot to form into cast products. 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