NIOBIUM 

Niobium rod  Niobium bar:

Niobium is a gray metal. Niobium has excellent corrosion resistance, high temperature resistance and superconductivity.

Niobium bar is one of niobium products. Niobium bar is produced from niobium powder by forging and polishing. Niobium bar has forging niobium bar and polishing niobium bar.

Standard: As per ASTM B392-98
Purity: 99.9% or 99.95%
Material: RO4200-1, RO4210-2
Size: ¢3~¢200-¢300-¢400mm

 Mechanical requirements (annealed condition)

Chemistry%
Designation
Chief componment
Impurities maximum
Nb
Fe
Si
Ni
W
Mo
Ti
Ta
O
C
H
N
Nb1
Remainder
0.004
0.003
0.002
0.004
0.004
0.002
0.07
0.01
0.004
0.0012
0.002
Nb2Remainder
0.005
0.005
0.005
0.010.010.004
0.1
0.015
0.01
0.0015
0.01

Table 2. Mechanical requirements (annealed condition)

GradeTensile strength(MPa)Yield strength(Mpa)δ0.2, psi (MPa),≥
Elongation in  1"/2" gage length,%, ≥
RO4200-1                    RO4210-218000 (125)
10500 (73)
25
Special requirements to be agreed on by the supplier and buyer of negotiations

Niobium tube   Niobium pipe :
1.Specifications
Grade:Nb1,RO4200,RO4210
Purity : > =99.95%
Melting Point: 2468 Degrees Celsius
Boiling Point:4742 Degrees Celsius
Density: 8.6g/cm3
Wall thickness: 0.2-5.0mm
Length: max 6000mm
Out diameter: 1.0-150mm

2.chemical composition

Table.1 Chemical composition:

Chemistry%
Designation
Chief componment
Impurities maximum
Nb
Fe
Si
Ni
W
Mo
Ti
Ta
O
C
H
N
Nb1
Remainder
0.004
0.003
0.002
0.004
0.004
0.002
0.07
0.015
0.004
0.0015
0.002
Nb2Remainder
0.02
0.02
0.005
0.020.020.005
0.15
0.03
0.01
0.0015
0.01
GradeTensile strength  δbpsi (MPa), ≥ Yield strength(Mpa)δ0.2, psi (MPa),≥
Elongation in  1"/2" gage length,%, ≥
RO4200-1                         RO4210-218000 (125)
12000 (85)25
Niobium foil
1.specification
Grade: RO4200.RO4210
Size : Thickness  :0.5-10  mm,Width : 50-1000 mm,   Length :50-3000mm
Standard: ASTMB393-03
Color: Silvery gray
Available grades :  Pure grade, Nb-Ti alloy, Nb-Zr alloy (Nb-Zr1%, Nb-Zr10%)
Supply condition: Cold rolled, Hot rolled, Extruded
Product Feature : High melting point, High-density, high temperature oxidation resistance, long service life, resistance to corrosion
Related Products : niobium bar ,    niobium sheet , niobium pipe , niobium  wire ,  niobium foil ,  niobium  standard parts ,  niobium mesh , niobium disk ,   niobium crafts and so on.
2. Physical Properties


Characteristic

Melting Point: 2468 Degrees Celsius                                                                          Boiling Point: 4742 Degrees Celsius                                                                          Density: 8.57g/cm3
CertificationSGS         ISO9001-2008
Table 1. Chemical composition:
Chemistry%
Designation
Chief componment
Impurities maximum
Nb
Fe
Si
Ni
W
Mo
Ti
Ta
O
C
H
N
Nb1
Remainder
0.004
0.002
0.002
0.004
0.004
0.002
0.07
0.015
0.005
0.0015
0.003
Nb2Remainder
0.02
0.02
0.005
0.020.020.005
0.15
0.03
0.01
0.0015
0.01
Special requirements to be agreed on by the supplier and buyer of negotiations
Table 2. Mechanical requirements (annealed condition)
GradeTensile strength  δbpsi (MPa), ≥ Yield strength(Mpa)δ0.2, psi (MPa),≥
Elongation in  1"/2" gage length,%, ≥
>=0.010
<0.010
RO4200-1                 RO4210-218000 (125)
12000 (85)25
20


Applications

Semiconductor materials, vacuum coating, sintering trays and boats, special chemical applications, superconductors, medical components, jet engine parts and is used in the lighting industry.
Product FeatureHigh melting point, High-density, high temperature oxidation resistance, long service life, resistance to corrosion.
Niobium wires:
Material:  RO4200-1, RO4210-2A
Size:      ¢0.25~¢3mm
Standard:  As per ASTM B392-98
Purity:    >=99.9%  99.95%    99.99%    99Table.1 Chemical composition:

 Mechanical requirements (annealed condition)
GradeTensile strength(MPa)Yield strength(Mpa)δ0.2, psi (MPa),≥
Elongation in  1"/2" gage length,%, ≥
RO4200-1                         RO4210-218000 (125)
10500 (73)
25
Special requirements to be agreed on by the supplier and buyer of negotiations

Niobium sheets  Niobium foils  Niobium plate  Niobium board:  

Material:  RO4200-1 RO4210-2
Size: 
      Thickness (mm)     Width (mm)     Length (mm)
Sheet    0.1-0.5         30-800       30-2000
Board    0.5-10         50-1000       50-3000
Standard: As per ASTM B393-98
Purity: >=99.9%  99.95%    99.99%    99.995