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Описание на продукта

Tantalum Rod (Tantalum Bar) is well-known mainly for its unmatched corrosion resistance and chemical inertness. Tantalum Rod (Tantalum Bar) is also extremely stable at high temperatures, since tantalum has a melting point around 3000°C. Tantalum is also one of the most bio-compatible metals available and is also radio-opaque due to its high density (16.68 g/cm3).

Tantalum Grades Guide:

R05200, unalloyed tantalum, electron-beam furnace or vacuum-arc melt, or both;

R05400, unalloyed tantalum, powder-metallurgy consolidation;

R05240, tantalum alloy, 60 % tantalum, 40 % niobium, electron-beam furnace or vacuum-arc melt;

R05252, tantalum alloy, 97.5 % tantalum, 2.5 % tungsten, electron-beam furnace or vacuum-arc melt, or both;

R05255, tantalum alloy, 90 % tantalum, 10 % tungsten, electron-beam furnace of vacuum-arc melt, or both.

Physical Properties:

Density 16.6 g/cc

Melting Point 3290 K, 2996°C, 5462°F

Boiling Point 5731 K, 6100°C, 9856°F

Coefficient of Thermal Expansion (20°C) 6.5 x 10(-6) / °C

Electrical Resistivity (20°C) 13.5 microhms-cm

Electrical Conductivity 13% IACS

Specific Heat 0.036 cal/g/°C

Thermal Conductivity .13 cal/cm(2)/cm°C/sec

Technology:

Tantalum Powder → Isocratic Pressing → Bar Billet →Sintering → Semi-finished bar →Forging → Swaging → Polished → End products → Inspection → Packing

Testing:

Corrosion test

Eddy Current test

Mechanical test

Microstructure test

Standard	ASTM B365, ASTM F560
Material	RO5200, RO5400, RO5252, RO5255
Shape	Round, Square, Hex (A/F), Rectangle, Wire
Dimension range	As per custom size
Surface	Black, Pickling, Sand-blasting, Polished
State	Annealed (M) or Non-Annealed(Y)
Third party inspection	Acceptable

Name	Ro5200 Pure Tantalum Price bar
Purity	99.95% min
Grade	R05200, R05400,R 05252, R05255, R05240
Standard	ASTM B708 GB/T 3629
Size	Item Thickness(mm) Width(mm) Length(mm) Foil 0.01-0.09 30-150 >200 Sheet 0.1-0.5 30-60 9.630-1000 Plate 0.5-10 50-1000 50-2000
Condition	1. Hot-rolled/Cold-rolled; 2.Alkaline Cleaning 3.Electrolytic polish; 4. Machining, grinding; 5.Stress relif anealing

Chemistry%
Designation	Chief Component		Impurities Maximum
Designation	Ta	Nb	Fe	Si	Ni	W	Mo	Ti	Nb	O	C	H	N
Ta1	Remainder		0.004	0.003	0.002	0.004	0.006	0.002	0.03	0.01	0.004	0.0015	0.002
Ta2	Remainder		0.01	0.01	0.005	0.02	0.02	0.005	0.08	0.015	0.01	0.0015	0.01
TaNb3	Remainder	<3.5	0.01	0.01	0.005	0.02	0.02	0.005		0.015	0.01	0.0015	0.01
TaNb20	Remainder	17.0-23.0	0.01	0.01	0.005	0.02	0.02	0.005		0.015	0.01	0.0015	0.01
Ta2.5W	Remainder		0.005	0.003	0.002	3	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

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