tantalum target

Detailed Product Description

Baoji Zhong Bang rare metal materials CO.,LTD holds Tantalum ,Niobium as the dominant products in the scope of rare metal new materials, including many sorts and grades of their metals, sheet, tube, wire ,rod ,crucible , target ,alloy and so on..

Tantalum features high melting point , low vapor pressure , good cold processability ,excellent chemical stability , good resistance to corrosion , high dielectric constant ,in surface oxide film .widely used in many industries such as electronics ,metallurgy, chemical processing , hard alloy cutters , aerospace and aviation.

Tantalum target

Material:  RO5200, RO5400,

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

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

Purity:              ≥99.95%  or  99.99%

Table 1: technology  parameter

Grade	3N, 3N5, 4N, with Ta 99.99%min
Recrystallization	95%min
Grain size	ASTM 4 or finer
Surface finish	16Rms max. or Ra 0.4 ( RMS64 or better)
Flatness	0.1mm or 0.15% max
Tolerance	+/-0.010" on all dimensions

Table 1. Chemical composition:

Chemistry                                                                %
Designation	Chief component		Impurities  maxmium
	Ta	Nb	Fe	Si	Ni	W	Mo	Ti	Nb	O	C	H	N
Ta1	Remainder		0.004	0.003	0.002	0.004	0.004	0.002	0.03	0.015	0.004	0.0015	0.002
Ta2	Remainder		0.01	0.01	0.005	0.02	0.02	0.005	0.08	0.02	0.01	0.0015	0.01
TaNb3	Remainder	3.5	0.01	0.01	0.005	0.02	0.02	0.005		0.02	0.01	0.0015	0.01
TaNb20	Remainder	17.023.0	0.01	0.01	0.005	0.02	0.02	0.005		0.02	0.01	0.0015	0.01
Ta2.5W	Remainder		0.005	0.003	0.002	3.0	0.006	0.002	0.04	0.015	0.005	0.0015	0.006
Ta10W	Remainder		0.005	0.003	0.002	11	0.006	0.002	0.04	0.015	0.005	0.0015	0.006