Density and specific heat of niobium and niobium alloys
Are you interested in the density and specific heat of niobium? Supplier Evek GmbH offers to buy niobium rolled products at an affordable price in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal.
Niobium is a rare, soft, malleable, malleable, gray-white metal. It has a body-centered cubic crystal structure, and, in its physical and chemical properties, resembles tantalum. It must be constantly in a protective atmosphere during processing at moderate temperatures, as it is easily oxidized by oxygen, halogens, nitrogen, sulfur. The metal is inert to acids at room temperature, but is exposed to hot concentrated acids and especially alkalis and oxidants.
Physical properties of niobium
|Number in the periodic table of elements||41|
|Atomic mass||92.91 g • mol -1|
|Density at 20 ° C||8400 kg / m 3|
|Melting temperature||2410 ° C|
|Boiling temperature||5100 ° C|
|Radius Van der Waals||0.143 nm|
|Radius of ions||0.069… 0.070 nm|
|Number of available isotopes||14|
|Primary ionization energy||652 kJ mol -1|
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|Ultimate strength at room temperature||275 MPa|
|The modulus of plasticity||105 GPa|
|Brinell hardness||736 HB|
|Vickers hardness||1320 MPa|
Basic thermophysical characteristics:
|The coefficient of thermal expansion in the temperature range 20… 1000 C||7.3 μm / m ° C|
|Coefficient of thermal conductivity||53.7 W / mK|
Areas of use
- Production of high-temperature resistant alloys and special stainless steel;
- Hard alloys.
The cutting tools use niobium chemical compounds, such as niobium carbide. Other compounds, such as lithium niobate, are used in electroceramics. Niobium-tin alloys are used as superconducting magnets. Niobium is used in alloys of stainless steel, which are used in nuclear reactors, rockets, jets, pipelines, cutting tools and welding rods.
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Are you interested in the density and specific heat of niobium? Supplier Evek GmbH offers to buy niobium rolled products at an affordable price in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal. We invite you to partner cooperation.