Strip, Coil, Foil, Wire, ASTM B393 

NIOB1 (Type 1 Reactor Grade Unalloyed) 
NIOB2 (Type 2 Commercial Grade Unalloyed)

Applications 

Type 1 and Type 2: 
Used in jewelry, super-abrasives, thin film deposition (glass), high-energy physics, springs and superconducting magnets for aerospace, consumer electronics, medical and superconducting applications 

Description 

Niobium is a very soft refractory metal with an extremely high melting point and corrosive resistant properties. High thermal/electric conductivity, easily fabricated and bio-compatible. 

Chemistry: Ingot 

Element              Type 1 Reactor Grade              Type 2 Commercial Grade

Niobium                  Balance                                           Balance
Carbon                    0.01                                                0.01
Nitrogen                  0.01                                                0.01
Oxygen                    0.015                                              0.025
Hydrogen                 0.0015                                            0.0015
Zirconium                0.02                                                0.02
Tantalum                 0.1                                                  0.3
Iron                         0.005                                               0.005
Silicon                     0.005                                               0.005
Tungsten                 0.03                                                 0.05
Nickel                     0.005                                               0.005
Molybdenum            0.020                                               0.020
Hafnium                   0.02                                                0.02
Titanium                  0.02                                                0.02


Below Elements Specified

Boron                      2ppm                                             --
Aluminum                0.002                                             .005
Beryllium                 0.005                                             --
Chromium                0.005                                             --
Cobalt                      0.002                                             --

Physical Properties 


Density: 0.310 lbs/in3, 8.66 g/cm3 

Mean Coefficient of Thermal Expansion, in/in/° F (mm/m/° C) 70 - 212 °F (20 - 100 ° C): 4.05 x 10-6 (7.3) 

Thermal Conductivity: (W/m-° K) 
(21 ° C): 53.7 

Modulus of Elasticity, ksi (MPa) 
1.52 x 103 (104.9 x 103) in tension 

Melting Point: 4490 ° F (2477 ° C) 


Forms 

Coil - Strip, Foil, Ribbon 
Wire - Profile, Round, Flat, Square 

Mechanical Properties at Room Temperature 

Annealed: Typical 

Ultimate Tensile Strength: 18 KSI min (124 MPa min)
Yield Strength (0.2% offset): 10.5 KSI min (72 MPa min)
Elongation: 
Gauges: less than 0.010 inches: 15% min
Gauges: 0.010 inches and greater: 20% min 

*Gauges: less than 0.010 inches: 15% min
Gauges: 0.010 inches and greater: 20% min 



Limitation of Liability and Disclaimer of Warranty: In no event will Ulbrich Stainless Steels & Special Metals, Inc., be liable for any damages arising from the use of the information included in this document or that it is suitable for the 'applications' noted. We believe the information and data provided to be accurate to the best of our knowledge but, all data is considered typical values only. It is intended for reference and general information and not recommended for specification, design or engineering purposes. Ulbrich assumes no implied or express warranty in regard to the creation or accuracy of the data provided in this document.


 

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