Alternatives to aluminum for other metals

The substitution of aluminum for other metals highlights the low price of aluminum and the relative abundance of aluminum resources making aluminum a substitute for other metals. In the past year, the spread of other metals such as aluminum and copper has continued to widen. At present, the LME copper price has reached more than 3,000 US dollars / ton, the domestic copper price is close to 30,000 yuan / ton level, compared with the level of the first half of last year, the increase was alarming. At the same time, the nickel price of LME once reached 17,700 US dollars / ton, has been maintained at about 14,000 US dollars / ton in the recent period, compared to the level of the same period last year, nearly doubled. At present, LME aluminum and domestic aluminum prices have risen by only about 20% compared with the same period last year. Since then, the copper and aluminum spreads at home and abroad have expanded step by step. In the second half of 2001, the spread of LME copper and aluminum was less than 100 US dollars per ton, and the spread of copper and aluminum in the domestic Shanghai Futures Exchange was less than 1,000 yuan per ton. By October 2002, the spread of LME copper and aluminum reached around US$300 per ton, and the difference between the price of copper and aluminum on the Shanghai Futures Exchange was 3,000 yuan per ton. After entering 2004, especially in the near future, the spread of LME copper and aluminum was once widened to more than 1,300 US dollars per ton. In addition, after the LME aluminum-nickel price spread reached a historically high level in December 2002, it remains at a high level. Aluminum resources are much richer than other metal resources such as copper. Copper and nickel and other metals, from the perspective of static reserves, can only be used for decades in the world at the current rate of exploitation and utilization. The existing reserves of bauxite can be guaranteed for hundreds of years. The long availability of aluminum resources over other metals provides better conditions for the manufacturing industry to choose aluminum as the raw material. Aluminum has good ductility, electrical conductivity, thermal conductivity, corrosion resistance, and nuclear radiation resistance. It can also reflect ultraviolet rays well and is easy to process and mix with other metals to form alloy materials. These properties of aluminum are similar to those of copper, nickel, zinc, etc. Therefore, these metals can be replaced with each other in many aspects. The price performance of aluminum is more and more attractive to the industry than the current market price structure. The substitution of aluminum for other metals may soon become a reality if the current spread is still too large, which will lead to aluminum consumption. growth of. Alternative performance of aluminum to other metals The main performance of aluminum wire can replace copper wire. The inadequacy of aluminum wires to replace copper wires is less conductive and safer than copper, so copper wires have always played a dominant role in the field of wire and cable. If the copper-aluminum spread is kept at a normal level, the industry tends to use copper as a conductor. However, in the current situation where the spread of LME copper and aluminum exceeds US$1,200 per ton, and the spread of copper and aluminum in China exceeds 12,000 yuan per ton, replacing copper conductors with aluminum conductors is economically very profitable. In addition, the weight of aluminum is twice as light as that of copper. Even if the price of copper and aluminum is the same, aluminum is still cheaper than copper by weight. Aluminum can replace nickel-plated stainless steel. As nickel prices have risen sharply, the price of steel products has also increased significantly in the past two years. This has led to a sharp increase in the cost of raw materials for the production of household appliances and utensils using nickel-plated stainless steel as raw materials, and it is difficult to increase the prices of finished products correspondingly. This in turn forced the manufacturer to find alternative raw materials. Although not as good as nickel-plated stainless steel, aluminum has a higher degree of corrosion resistance and appearance than ordinary steel materials, and its price is superior to other stainless steel alloys. The use of aluminum or aluminum alloys instead of or in place of nickel-plated stainless steels is The performance and appearance of the finished product are slightly inadequate, but it is economically very cost-effective and easier for consumers to accept. Aluminum and aluminum alloys have a small specific gravity and high strength and can replace steel in some industrial sectors. At present, the use of aluminum instead of other metal materials has become the preferred lightening of the automotive industry. With the current low aluminum prices, this trend is accelerating. At present, the main direction of the development of automotive materials technology in the world is lightweight and environmental protection. Reducing the quality of automobiles is one of the more effective measures to reduce vehicle emissions and improve fuel efficiency. It is estimated that for every 10% reduction in the quality of the car, fuel consumption can be reduced by 6% to 8%. It is expected that in the next 10 years, the quality of the car itself will continue to be reduced by 20%, and the development and application of new lightweight materials will continue to be the focus of automotive materials, and aluminum and its alloys are currently one of the more desirable materials. The substitution of aluminum for other metals will promote the growth of global aluminum consumption. It is estimated that aluminum wires will partially increase the consumption of aluminum by more than 200,000 tons instead of copper wires. If the amount of aluminum used per vehicle is increased from the current 115 kg to 130 kg, then the increase of tens of millions of automobiles each year in the world will increase aluminum consumption by more than one million tons. If we consider the substitution of aluminum and aluminum alloys for other metals in building decoration, household appliances, utensils, and stainless steel, then the increased aluminum consumption in the world will be calculated in millions of tons. Source: Shanghai Metal Net

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