Properties And Uses Of Ferromolybdenum
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ZhenAn Metallurgical Manufacturer
The atomic weight of molybdenum is 95.94. The outer electronic structure is 4d5s, the melting point is 2615°C, the boiling point is 4610°C, and the density (20°C) is 10.2g/cm. The binary phase diagram of molybdenum and iron is shown in Figure 1. Molybdenum and iron form two solid solutions, α and γ, and two intermetallic compounds, ε (Fe7Mo6) and σ (FeMo) phases. Industrial ferromolybdenum contains about 60% Mo, the melting temperature is 1800~1900℃, and the density is about 9.0g/cm.
The role of molybdenum in steel can be summarized as improving hardenability, improving thermal strength, preventing temper brittleness, improving remanence and coercivity, and corrosion resistance in certain media, and preventing pitting corrosion tendencies. Due to the various beneficial effects of molybdenum in steel, it is widely used in a series of steel types such as structural steel, spring steel, bearing steel, tool steel, stainless acid-resistant steel, heat-resistant steel (also called heat-strength steel), and magnetic steel. , has been widely used. Molybdenum is very effective in improving strength and toughness in cast iron. When the addition amount is 0.25% to 1.25%, it can also form a pearlite matrix structure for castings with medium and large cross-sections. Commonly used in rolls and other wear-resistant castings.
| Ferromolybdenum 60# Unit: 10,000 yuan/ton | |||||||
| Cash offer | ups and downs | cash transaction price | ups and downs | Acceptance quotation | ups and downs | Acceptance transaction price | ups and downs |
| 21-21.5 | -- | 20.6-21.3 | ↑0.1 | 21.2-21.7 | -- | 20.8-21.5 | ↑0.1 |
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