Specifications

1.Material: RO4200-1, RO4210-2A ,
2.Size: dia0.25 to 3mm
3.Standard: As per ASTM B392-98

1.Material: RO4200-1, RO4210-2A ,
2.Size: dia0.25 to 3mm
3.Standard: As per  ASTM B392-98

 

Niobium is an associated metal of tantalum ,characterized in high strength ,high conductivity ,resistance to corrosion by liquid base metals ,section with low neutron capture ,etc ,widely used for steel ,ceramics ,electronics ,nuclear energy industries and superconductor technology.

 

Niobium rods (ASTM B392-98)
3mm up to 120mm Diameter x random length.

 

- Niobium wires (ASTM B 392-98)
0. 3mm up to 3. 0mm Diameter x R / L in coil
- Niobium 1% Zirconium wires (Nb-1Zr, Niobium alloy wires)
0. 3mm up to 3. 0mm Diameter x R / L in coil

-Niobium plates (ASTM B393-98 R04210)
Thick 0. 1 up to 20mm x Width up to 1000mm x Length
 Niobium sheets (ASTM B393-98 R04210)
  Niobium foils (ASTM B393 )
Thick 0. 05 up to 0. 08mm x Width 5-130mm x Length
- Niobium seamless tubes (ASTM B394-98)
Out Diameter1.5mm up to 120 mm x Wall Thickness 0. 2mm up to 5 mm x Length 6 meters max. .

Niobium capillary tubes / pipes (seamless)

Outer Diameter 1. 0mm up to 2. 0 mm x Wall Thickness 0. 2mm up to 0. 35 mm x Length 1 meters max.

Niobium circular targets: Diameter  25mm up to 400mm x Thickness 3mm up to 28mm

Niobium rectangular targets:Thickness 1mm up to 12.7mm x Width up to 600mm x Length up to 2000mm

Niobium  crucibles:

Applications: For rare-earth metallurgy, load plates for the anodes of  niobium electrolyzing capacitors and for corrosion resistant containers in chemical industries

 

Table 1. Mechanical requirements (annealed condition)

Grade	Tensile strength δbpsi (MPa), ≥	Yield strength δ0.2, psi (MPa),≥	Elongation in 1"/2" gage length, %, ≥
RO4200-1 RO4210-2	18000 (125)	10500 (73)	25
Special requirements to be agreed on by the supplier and buyer of negotiations

 

 

Table.2 Chemical composition:

Chemistry                                                                %
Designation	Chief component		Impurities    maxmium
	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
Nb2	Remainder	0.02		0.02	0.005	0.02	0.02	0.005	0.15	0.03	0.01	0.0015	0.01