Product Details

Specifications

99.95% tantalum square bars/rods/poles
Purity:99.95%min

99.95% tantalum square bars

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.

size: 3.0mm up to 120mm Diameter x random length, They are very popular in the market on account of their superior quality and competitive price.Special requirements to be agreed on by the supplier and buyer of negotiation.

Table.1.Chemical composition:

Chemistry %
Designation	Chief component		Impurities maxmium
Designation	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

Table2. Permissible variations in diameter for rods

Diameter, inch (mm)	Tolerance, +/-inch (mm)
0.125~0.187 excl (3.175~4.750)	0.003 (0.076)
0.187~0.375 excl (4.750~9.525)	0.004 (0.102)
0.375~0.500 excl (9.525~12.70)	0.005 (0.127)
0.500~0.625 excl (12.70~15.88)	0.007 (0.178)
0.625~0.750 excl (15.88~19.05)	0.008 (0.203)
0.750~1.000 excl (19.05~25.40)	0.010 (0.254)
1.000~1.500 excl (25.40~38.10)	0.015 (0.381)
1.500~2.000 excl (38.10~50.80)	0.020 (0.508)
2.000~2.500 excl (50.80~63.50)	0.030 (0.762)

Table3. Mechanical requirements (annealed condition)

Rod, Diameter 0.125" (3.18mm)~2.5" (63.5mm)
Grade	Tensile strength, psi (MPa), ≥	Yield strength, psi (MPa), ≥	Elongation in 1 inch gage length, %, ≥
RO5200/RO5400	25000 (172)	15000 (103)	25
RO5252	40000 (276)	28000 (193)	20
RO5255	70000 (482)	55000 (379)	20
RO5240	40000 (276)	28000(193)

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