Why Ndfeb magnet price fluctuates greatly? The main raw materials of NdFeb include rare earths such as praseodymium neodymium, dysprosium iron, terbium metal and pure iron, of which praseodymium neodymium accounts for a large proportion of the price. The price of rare earth metals itself has the characteristics of a short period of fluctuation, so the price of Ndfeb magnet also has greater fluctuations.
Ndfeb magnet price fluctuation is affected by rare earth how much? This depends on the specific brand. Because there are great differences in the composition of NdFeb between different grades, especially high-performance grades of Ndfeb magnets, and the formula of different manufacturers also has great differences. Let’s give some examples.
If the price of praseodymium neodymium is 550,000 / ton, N45M (without cerium) Nd-Fe-B blank 210 yuan /kg, the content of praseodymium neodymium in the ingredient formula is about 30%, the value of praseodymium neodymium of 1 kg N45M NdFeB blank is 0.3kg×550 yuan /kg=165 yuan, and other materials and manufacturing costs are 45 yuan, the value of praseodymium neodymium accounts for 78.6%.
Similarly, if the price of prasdymium neodymium is 55 yuan/ton, terbium metal is 9500 yuan /kg, and N42EH NdFeb blank price is 580 yuan /kg, the content of prasdymium neodymium in the composition is about 27%, the value of prasdymium neodymium in 1 kg N42EH NdFeb blank is about 0.27kg×550 yuan /kg=149 yuan, and the content of terbium in the composition is about 2.5%. The terbium value of 1 kg N42EH NdFeb blank is about 0.03×9500 yuan /kg=285 yuan (note: it is not a real formula, it is assumed), the value of praseodymium and neodymium accounts for about 26%, and the value of terbium accounts for about 50%.
What we said above is only the composition of the value of NdFeb blank, specifically made of magnetic steel, but also need to consider machining, surface treatment, testing magnetization, packaging and transportation, and profit. This is related to the specific product shape, quantity and delivery method. Therefore, it is difficult to quantify how much praseodymium and neodymium rise and fall, and how much a certain Neodymium ferroboron magnetic steel will rise. Therefore, magnetic steel manufacturers will inform or indicate the price of raw materials referenced in the quotation, if the price of raw materials fluctuates more than 2%, it may need to be re-quoted.
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Ndfeb properties table here. Samarium-cobalt properties point here.