2 thoughts on “What is the nature of the alloy used to make coins”
Lynette
As a kind of currency, not only requires coins to be beautiful and generous, but also requires a certain hardness, easy processing, and luster. In addition, the amount of currency is large. It must also choose abrasive and corrosive alloys. 1 yuan is stainless steel, and a layer of metal paint is plated outside the outside. 99%of the copper is plated. It can be said that there are two types of copper. 1 yuan is also stainless steel. A layer of metal paint is plated on the outside. Nickel 25 mm 2000.10.16 5 corner coins, noodles, noodles, pinyin, annual lotus steel core copper plated alloy 20.5 mm 2002.11.18 1 coin line name, noodles, pinyin, orchid aluminum alloy 19 mm 2000.10.16 coin coins Materials are mainly metal. A few non -metal materials have also appeared. The first precious metal in the metal, such as gold and silver. The ancient coins were generally determined by gold and silver weight. Due to the lack of gold and silver and the large amount of coins, the gold coins were gradually withdrawn in circulation in the early 20th century, and the silver coins circulated after World War II were basically extinct. Of course, there are exceptions. A few days ago, gold and silver were mainly used for non -trada commemorative coins, trade coins and pure gold and coins. In addition, there are platinum coins (such as Main Island) and 钯 coins (such as the original Soviet Union). Gold and silver coins have different purity, which are generally represented by a few thousandths. Gold coins are high in gold, usually greater than 90%; silver coins are uneven, the lowest can reach 40%. Ordinary metals include: copper, brass, bronze, aluminum bronze; iron, nickel, stainless steel, nickel steel, chromium steel; aluminum, magnesium; tin, lead, zinc, 锑, etc. Among them, pure copper, brass, copper nickel table gold, aluminum bronze; stainless steel; aluminum. Another form is covered (including electroplating, rolling materials, explosion covering and sintering covering). Many of the applications are: copper nickel covering copper, copper -covered steel, nickel -covered steel. Another form is dual metal. The inner and outer rings of the coin are made of different metals, respectively. Such as copper nickel outer circles of Qinggang inner core, green steel outer circular copper inner core. Non -metallic coins have not been used in circulation. For temporary use in the case where the metal is particularly lacking (such as the war). It is known for ceramics (after the First War of Germany) and pottery (the end of the Second World War in Japan). Sometimes some little -known trial coins are found on the coin directory. For example, Main Island issued a "Virenium" 1 pound coin since 1983. The inquiry is actually CU-Ni-Zn alloy. It is currently not found in any dictionary. Another example is "" in some exile governments. This is a temporary name for the silver coin material used by the Franklin Mint in the United States.
As a kind of currency, not only requires coins to be beautiful and generous, but also requires a certain hardness, easy processing, and luster. In addition, the amount of currency is large. It must also choose abrasive and corrosive alloys. 1 yuan is stainless steel, and a layer of metal paint is plated outside the outside. 99%of the copper is plated. It can be said that there are two types of copper. 1 yuan is also stainless steel. A layer of metal paint is plated on the outside. Nickel 25 mm 2000.10.16 5 corner coins, noodles, noodles, pinyin, annual lotus steel core copper plated alloy 20.5 mm 2002.11.18 1 coin line name, noodles, pinyin, orchid aluminum alloy 19 mm 2000.10.16 coin coins Materials are mainly metal. A few non -metal materials have also appeared. The first precious metal in the metal, such as gold and silver. The ancient coins were generally determined by gold and silver weight. Due to the lack of gold and silver and the large amount of coins, the gold coins were gradually withdrawn in circulation in the early 20th century, and the silver coins circulated after World War II were basically extinct. Of course, there are exceptions. A few days ago, gold and silver were mainly used for non -trada commemorative coins, trade coins and pure gold and coins. In addition, there are platinum coins (such as Main Island) and 钯 coins (such as the original Soviet Union). Gold and silver coins have different purity, which are generally represented by a few thousandths. Gold coins are high in gold, usually greater than 90%; silver coins are uneven, the lowest can reach 40%. Ordinary metals include: copper, brass, bronze, aluminum bronze; iron, nickel, stainless steel, nickel steel, chromium steel; aluminum, magnesium; tin, lead, zinc, 锑, etc. Among them, pure copper, brass, copper nickel table gold, aluminum bronze; stainless steel; aluminum. Another form is covered (including electroplating, rolling materials, explosion covering and sintering covering). Many of the applications are: copper nickel covering copper, copper -covered steel, nickel -covered steel. Another form is dual metal. The inner and outer rings of the coin are made of different metals, respectively. Such as copper nickel outer circles of Qinggang inner core, green steel outer circular copper inner core. Non -metallic coins have not been used in circulation. For temporary use in the case where the metal is particularly lacking (such as the war). It is known for ceramics (after the First War of Germany) and pottery (the end of the Second World War in Japan). Sometimes some little -known trial coins are found on the coin directory. For example, Main Island issued a "Virenium" 1 pound coin since 1983. The inquiry is actually CU-Ni-Zn alloy. It is currently not found in any dictionary. Another example is "" in some exile governments. This is a temporary name for the silver coin material used by the Franklin Mint in the United States.
Strong antioxidant capacity, hard texture, strong abrasion resistance, and high raw material output