Refractory Metals
Refractory metals are a class of metals that are extraordinarily resistant to heat and wear. This group includes a broad range of metals, but among the most commonly recognized are zirconium (Zr), tantalum (Ta), niobium (Nb), tungsten (W), and molybdenum (Mo). They are characterized by their high melting points, which are considerably higher than those of iron, cobalt, and nickel.
Zirconium (Zr)
Zirconium has a melting point of 1855°C and is known for its corrosion resistance, especially against acids. In industry, it's used in nuclear reactors due to its low neutron-capture cross-section and in the chemical industry for constructing corrosion-resistant equipment.
Tantalum (Ta)
With a melting point of 3017°C, tantalum is highly corrosion-resistant. It's used to make electronic components such as capacitors and high-power resistors. Tantalum is also used in the production of superalloys that have high strength and stability at elevated temperatures for aerospace applications and in medical implants due to its biocompatibility.
Niobium (Nb)
Niobium's melting point is 2477°C. It is used in the construction of jet engines and rocket subassemblies, as well as in superconducting magnets due to its excellent superconducting properties.
Tungsten (W)
Tungsten has the highest melting point of all metals at 3422°C, which makes it invaluable for its high-temperature structural properties. It is widely used in filaments for light bulbs, electron and X-ray tubes, and as alloying elements in steel to enhance hardness and resistance to wear and temperatures.
Molybdenum (Mo)
Molybdenum, with a melting point of 2623°C, is used in aircraft parts, electrical contacts, industrial motors, and filaments. Its high-temperature strength and thermal conductivity make it ideal for use in furnace parts, while its electrical properties are utilized in vacuum tubes.
Collectively, refractory metals are crucial in high-temperature industrial processes. They are commonly used in the form of alloys to improve their physical properties, tailoring them to specific applications that require materials capable of withstanding extreme conditions without deformation or degradation. They enable advancements in technology and manufacturing, from electronics to aerospace to nuclear applications, due to their unique mechanical, thermal, and chemical properties.
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Tantalum Metal Products
Composition: Tantalum (Ta)
Catalog No.: RM73-MT
Typical Lead Time: 3 weels
MOQ: $300
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Tungsten Metal Products
Tungsten is a very hard material with extremely high melting point. As the material is hard to be melt, its usually made by powder metallurgy. Stocked tungsten rods/ingots could be used to make all kinds of crucibles, rods and custom parts.
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Zirconium Metal Products
QS Rare Elements has two grades of Zirconium. The high purity Zirconium material from zirconium crystal bar, and R60702 grade zirconium(commercial pure) made from zirconium sponge. Both grade are available in sheets/foil, wire, and raw material.
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Tungsten (W) Crucible
Element Symbol: W
Atomic Weight: 183.84
M.P. of tungsten: 3695 K (3422 °C, 6192 °F)
Catalog No.:RF74-CB
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Zirconium Pellets
Material: High purity Zirconiumr(99.95% Hf<100ppm)
Ref. Price: $265.00/100g
Diameter:1~3mm
Length: 2~5mm
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Hafnium Evaporation Materials
Hafnium evaporation materials.
Form: Turnings, Pellets
Purity:>99.95% Zr<0.5%
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Tungsten Heavy Metal Alloy (W-Ni-Fe) Bucking Bar
Composition: W/Ni/Fe
Catalog No.: WNF-BB
Material purity: 99.95%
Typical lead time: 3 weeks
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Tungsten (W) Rod
Composition: Tungsten (W, Atomic No. 74)
Catalog No.: RF74-Rod
Material purity: 99.95%
Typical lead time: 3 weeks
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Tungsten (W) Bar
Composition: Tungsten (W, Atomic No. 74)
Catalog No.: RF74-Bar
Material purity: 99.95%
Typical lead time: 3 weeks
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Tungsten (W) Plate
Composition: Tungsten (W, Atomic No. 74)
Catalog No.: RF74-Plate
Material purity: 99.95%
Typical lead time: 3 weeks
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Tungsten (W) Sheet
Composition: Tungsten (W, Atomic No. 74)
Catalog No.: RF74-Sheet
Material purity: 99.95%
Typical lead time: 3 weeks
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Tungsten (W) Foil
Composition: Tungsten (W, Atomic No. 74)
Catalog No.: RF74-Foil
Material purity: 99.95%
Typical lead time: 3 weeks
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Tungsten (W) Wire
Composition: Tungsten (W, Atomic No. 74)
Catalog No.: RF74-Wire
Material purity: 99.95%
Typical lead time: 3 weeks
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Tungsten (W) Particle
Composition: Tungsten (W, Atomic No. 74)
Catalog No.: RF74-PT
Material purity: 99.95%
Typical lead time: 3 weeks
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Tungsten (W) Grits
Composition: Tungsten (W, Atomic No. 74)
Catalog No.: RF74-GR
Material purity: 99.95%
Typical lead time: 3 weeks
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Tungsten (W) Powder
Composition: Tungsten (W, Atomic No. 74)
Catalog No.: RF74-PD
Material purity: 99.95%
Typical lead time: 3 weeks
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Tungsten (W) Pellets
Composition: Tungsten (W, Atomic No. 74)
Catalog No.: RF74-PTS
Material purity: 99.95%
Typical lead time: 3 weeks
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Tungsten (W) Evaporation Material
Composition: Tungsten (W, Atomic No. 74)
Catalog No.: RF74-EM
Material purity: 99.95%
Typical lead time: 3 weeks
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Tungsten (W) Tube
Composition: Tungsten (W, Atomic No. 74)
Catalog No.: RF74-Tube
Material purity: 99.95%
Typical lead time: 3 weeks
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Tungsten (W) Ring
Composition: Tungsten (W, Atomic No. 74)
Catalog No.: RF74-Ring
Material purity: 99.95%
Typical lead time: 3 weeks
