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ATI Wah Chang Niobium

Category	Metal , Nonferrous Metal , Pure Element
Manufacturer	ATI Wah Chang
Trade Name
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	ATI Wah Chang Niobium.pdf
Price	EMAIL US sales@lookpolymers.com

Material Notes:

Niobium is a soft, ductile metal which can be cold worked over 90 percent before annealing becomes necessary. In appearance, the metal is somewhat similar to stainless steel. The density of 8.57 gm/cc is moderate compared to the majority of the high melting point metals, being less than molybdenum at 10.2 gm/cc and only half that of tantalum at 16.6 gm/cc. Information provided by ATI Wah Chang

Physical Properties	Metric	English	Comments
Density	8.58 g/cc	0.310 lb/in³
a Lattice Constant	3.30 Å	3.30 Å

Mechanical Properties	Metric	English	Comments
Hardness, Vickers	60 - 100	60 - 100
Modulus of Elasticity	103 GPa	14900 ksi
Poissons Ratio	0.38	0.38
Shear Modulus	37.3 GPa	5410 ksi	Calculated

Thermal Properties	Metric	English
CTE, linear	7.10 µm/m-°C @Temperature 20.0 °C	3.94 µin/in-°F @Temperature 68.0 °F
Specific Heat Capacity	0.320 J/g-°C @Temperature 1227 °C	0.0765 BTU/lb-°F @Temperature 2241 °F
Thermal Conductivity	52.22 W/m-K @Temperature 0.000 °C	362.4 BTU-in/hr-ft²-°F @Temperature 32.0 °F
	68.92 W/m-K @Temperature 1600 °C	478.3 BTU-in/hr-ft²-°F @Temperature 2910 °F
Melting Point	2468 °C	4474 °F
Boiling Point	4927 °C	8901 °F
Brittleness Temperature	-150 °C	-238 °F

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000150 ohm-cm	0.0000150 ohm-cm

Chemical Properties	Metric	English	Comments
Covalent Radius	1.34	1.34
Electronegativity	1.6	1.6	Pauling`s

Processing Properties	Metric	English	Comments
Recrystallization Temperature	900 - 1300 °C	1650 - 2370 °F

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