Modern technological civilization is based on copper and its alloys. All electrical products are impossible without copper, in the form in which they exist. And for different environments require different copper. Therefore, steel industry produces a variety of forms of copper: copper ingots, cathodes, ingots.
Today, electrical engineering is used as a virtually pure copper brand M00b, wherein the content of any impurities do not exceed one thousand per cent and up to phosphorous and other brands. Phosphorous copper ingots, so-called master alloy, trademark MF-9 and MF-10 are used in industry in the manufacture of both the copper and various copper alloys. Phosphorus copper has a high hardness.
Copper is the second metal electrical conductivity after silver and cheaper. Its high plasticity allows processing by pressure. Oxygen makes copper much more fragile, so the industry, producing copper ingots brands M00b, M00 and M0, takes care of its low content. Since copper ingots brand M00b practically free of oxygen, and in the marks M00 and M0 its content not more than 0.001%. Plus, a high copper content (M00b and M00 - 99.99%, M0 - 99.97%) make these marks indispensable in the manufacture of magnet wire (especially a small diameter) for transformers, generators, motors and other products.
Yet gained the widest application copper ingots marks M1 and M2. High resistance to corrosion makes it quite sufficient strength manufacturability of parts of the copper of these brands. Water pipes, kitchen utensils, fittings - that's what little is made of the data marks. The impossibility of the growth of bacteria on the surface of copper makes it indispensable in medical technology. A feature retains its physical properties at very low temperatures (reaching temperatures of liquid helium), makes copper ingots mark M1 is almost the basic material in the manufacture of cryogenic equipment. Industry also produces copper ingots brands M1r, M2P and M3R (able to withstand temperatures up to 400 C).

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