MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 180,000 metals, plastics, ceramics, and composites.
MatWeb - Material Property Data HOME  •   SEARCH  •   TOOLS  •   SUPPLIERS  •   FOLDERS  •   ABOUT US  •   FAQ  •   LOG IN    
Recently Viewed Materials (most recent at top)  

Login to see your most recently viewed materials here.

Or if you don't have an account with us yet, then click here to register.

  Searches:   Advanced  | Category  | Property  | Metals  | Trade Name  | Manufacturer  | Recently Viewed Materials
  

Ensinger PEI

Elmet-Starck Pure Niobium (Columbium)
Categories: Metal; Nonferrous Metal; Niobium Alloy; Refractory Metal; Pure Element

Material Notes: Applications: NRC® niobium metal is produced from electron beam melted ingots. Grain Stabilized Niobium (GSNb) is made by EB and VAR melting. Both materials are malleable, weldable, machineable and formable. GSNb is used in applications where a consistently finer grain size is required.
Niobium is used in the manufacture of synthetic diamonds; in sputtering targets for fiber optic applications or architectural glass; in nickel based superalloys; and alloyed with titanium or tin, in superconductors. In nuclear reactors it has low thermal neutron cross section and superior corrosion resistance, It is an excellent getter and finds use in high temperature vacuum furnaces, and is resistant to attack by the molten alkali metals found in sodium vapor lamps.

Forms Available: Foil, Sheet, Plate, Welded Tubing, Rod, Wire and Bar.

Metallurgical Characteristics: Material is single-phase niobium, stress relieve at 650°C, re-crystallize at 950°C. Crystal structure: bcc

Information provided by H.C. Starck.

Elmet Technologies Acquired H.C. Starck Solutions Americas in 2023.

Vendors: Elmet Technologies is a 100% US owned and operated, fully integrated manufacturer of Molybdenum, Tungsten and related alloys such as TZM, WHA & MoLa. At our 220,000 sqr/ft plant in Lewiston, Maine, Elmet manufactures W & Mo pure powders plus rod, wire, plate, sheet & foil in additional to offering fabrication and machining services. ITAR, ISO and AS9100 registered. www.elmettechnologies.com

Click here to view all available suppliers for this material.

Please click here if you are a supplier and would like information on how to add your listing to this material.

 
Physical PropertiesMetricEnglishComments
Specific Gravity 8.47 g/cc8.47 g/cc
 
Chemical PropertiesMetricEnglishComments
Atomic Mass 92.9192.91
Atomic Number 4141
Thermal Neutron Cross Section 1.1 barns/atom1.1 barns/atom
 
Mechanical PropertiesMetricEnglishComments
Hardness, Vickers 50 - 8050 - 80annealed
Tensile Strength, Ultimate >= 112 MPa>= 16200 psire-crystallized
 >= 124 MPa
@Temperature 20.0 °C
>= 18000 psi
@Temperature 68.0 °F
Tensile Strength, Yield >= 84.8 MPa
@Temperature 20.0 °C
>= 12300 psi
@Temperature 68.0 °F
typical
Elongation at Break >= 25 %>= 25 %
Modulus of Elasticity 103 GPa15000 ksi
Poissons Ratio 0.380.38
Shear Modulus 37.3 GPa5410 ksiCalculated
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 0.0000145 ohm-cm
@Temperature 0.000 - 100 °C
0.0000145 ohm-cm
@Temperature 32.0 - 212 °F
Critical Superconducting Temperature 9.20 K9.20 K
 
Thermal PropertiesMetricEnglishComments
CTE, linear 12.8 µm/m-°C
@Temperature 20.0 - 100 °C
7.10 µin/in-°F
@Temperature 68.0 - 212 °F
Specific Heat Capacity 0.272 J/g-°C
@Temperature 27.0 °C
0.0650 BTU/lb-°F
@Temperature 80.6 °F
Thermal Conductivity 52.3 W/m-K363 BTU-in/hr-ft²-°F
Melting Point 2468 °C4474 °F
 
Component Elements PropertiesMetricEnglishComments
Niobium, Nb (Columbium, Cb) >= 99.8 %>= 99.8 %Type II - Commercial Grade
 >= 99.9 %>= 99.9 %Type I - Reactor Grade
Tantalum, Ta <= 0.10 %<= 0.10 %Type I - Reactor Grade
 <= 0.20 %<= 0.20 %Type II - Commercial Grade
 
Descriptive Properties
Thermal Resistivity1

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

Users viewing this material also viewed the following:
H.C. Starck Amperit® 161.065 Niobium (Nb)
Niobium Carbide, NbC
Lucas-Milhaupt Silvaloy® 18M Brazing Alloy
H.C. Starck Grain Stabilized Niobium (GSNb)
H.C. Starck Baymetec® Niobium Ethoxide

NHCST929 / 130819

Proto3000 – 3D Engineering Solutions

Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at webmaster@matweb.com. We appreciate your input.

The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2024 by MatWeb, LLC. MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.