Tungsten is an important alloying element in high-speed and other tool steels, and is used to a lesser extent in some stainless and structural steels. Tungsten is often added to steel melts as ferrotungsten, which can contain up to 80% tungsten. World ferrotungsten production is dominated by China, which in 2008 exported 4,835 t (gross weight) of the alloy. Ferrotungsten is relatively expensive, with the prices around $31–44 per kilogram of contained tungsten.

 

Established the method that determinated Mo in Ferrotungsten by ICP-AES. The sample is resolved by HNO3-HCl-HF. Mo is directly determinated at the optimize instrument condition of 202.031nm. This article's result is the same of the chemistry analysis. RSD 0.06%. The result is satisfied. This article's method is easier, faster and more exactly than chemistry analysis.

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