Refractory Metals
Niobium-zirconium Alloy
Giving zirconium addition to niobium can improve the strength of the niobium alloy without affecting its ductility and workability. Zirconium can also improve the resistance performance to oxidation and corrosion.
Nb-Zr1% is the most widely used niobium alloy, which exhibits low-intensity, good processing and welding performance, and mainly applied for the aerospace, nuclear reactors, sodium lighting and other applications.
Nb-Zr10% is a latest developed niobium alloy. Relying on its unique properties, Nb-Zr10% alloy has been widely used in vacuum sputtering architectural glass, solar, photovoltaic coating. This alloy has a great potential market and economical benefits.
Beside Nb-Zr1% and Nb-Zr10%, HEXON is also able to supply other niobium zirconium alloy such as Nb-Zr3% according to specific demand from our customers.
Chemical requirements Nb-Zr1% alloy (wt%, max.)
UNS
C
N
O
H
Zr
Ta
Fe
Si
W
Ni
Mo
Hf
Ti
R04251
0.01
0.01
0.015
0.0015
0.8-1.2
0.1
0.005
0.005
0.03
0.005
0.01
0.02
0.02
R04261
0.01
0.01
0.025
0.0015
0.8-1.2
0.5
0.005
0.005
0.05
0.005
0.05
0.02
0.03
*
Per ASTM B393-09
Mechanical properties for RRR superconducting grade niobium
Grade
Condition
Tensile strength
Yield strength
Elongation in 1 inch
Elongation in 1 inch
R04251
Annealed
195
125
20
15
R04261
Annealed
195
125
20
15
* Annealed condition - 90 % Minimum Recrystallized
(MPa, min.)
(MPa, min.)
(%, min.)
(%, min.)
* Per ASTM B393-09
Available forms
● Ingot
● Plate and sheet
● Rod and bar
● Wire
● Tube and Pipe
● Custom-made parts
Specifications
ASTM B391-09
ASTM B392-09
ASTM B393-09
ASTM B394-09
Typical applications
Chemical processing
Thin film deposition
Nuclear industry
Sodium lighting
