Specifications

Tantalum Wire
Available in a wide range of forms including nut, screw, ring, wire, foil, sheet, rod, strip, plate, tube, alloy

Introduction:

Tantalum is dark, dense, ductile, very hard, easily fabricated, and highly conductive of heat and electricity. The metal is renowned for its resistance ,as the metal powder, is in the production of electronic components, mainly capacitors and some high-power resistors. Tantalum electrolytic capacitors exploit the tendency of tantalum to form a protective oxide surface layer, using tantalum powder, pressed into a pellet shape, as one "plate" of the capacitor, the oxide as the dielectric, and an electrolytic solution or conductive solid as the other "plate". Because the dielectric layer can be very thin (thinner than the similar layer in, for instance, an aluminium electrolytic capacitor), a high capacitance can be achieved in a small volume. Because of the size and weight advantages, tantalum capacitors are attractive for portable telephones, personal computers, and automotive electronics.

ASTM B 365 as follows:

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

 R05400, unalloyed tantalum, powder-metallurgy consolidation,

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

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

 R05240 tantalum alloy, 60 % tantalum 40 % columbium, electron-beam furnace or vacuum-arc melt, or both.
Chemical Compositon

Element	Compositon,Max,%
	R05200	R05400	R05255	R05252	R05240
C	0.010	0.010	0.010	0.010	0.010
O	0.015	0.03	0.015	0.015	0.020
N	0.010	0.010	0.010	0.010	0.010
H	0.0015	0.0015	0.0015	0.0015	0.0015
Nb	0.10	0.10	0.10	0.50	35.0-42.0
Fe	0.010	0.010	0.010	0.010	0.010
Ti	0.010	0.010	0.010	0.010	0.010
W	0.050	0.050	9.0-11.0	2.0-3.5	0.050
Mo	0.020	0.020	0.020	0.020	0.020
Si	0.005	0.005	0.005	0.005	0.005
Ni	0.010	0.010	0.010	0.010	0.010
Ta	remainder	remainder	remainder	remainder	remainder

Permissible variations in diameter for wires

Diameter, inch (mm)	Tolerance, ±,inch (mm)
≥0.010~0.020 (0.254~0.508)	0.0005 (0.013)
≥0.020~0.030 (0.508~0.762)	0.00075 (0.019)
≥0.030~0.060 (0.762~1.524)	0.001 (0.025)
≥0.060~0.090 (1.524~2.286)	0.0015 (0.038)
≥0.090~0.125 (2.286~3.175)	0.002 (0.051)
≥0.125`0.187(3.175`4.750)	0.003(0.076)
≥0.187`0.375(4.750`9.525)	0.004(0.102)
≥0.375`0.500(9.525`12.70)	0.005(0.127)
≥0.500`0.625(12.70`15.88)	0.007(0.178)
≥0.625`0.750(15.88`19.05)	0.008(0.203)
≥0.750`1.000(19.05`25.40)	0.010(0.254)
≥1.000`1.500(25.40`38.10)	0.015(0.381)
≥1.500`2.000(38.10`50.80)	0.020(0.508)
≥2.000`2.500(50.80`63.50)	0.030(0.762)

Our products is available in a wide range of forms including nut, screw ,ring ,wire, foil, sheet, rod, strip, plate, tube, alloys according to Standard ASTM AMS ASME MIL DMS JIS GB, etc.

As a DNV certified ISO9001:2000 company, we have strict quality control system and provide professional service to our customers around the world. Our customers are in aerospace industry, chemical equipment industry, medical industry and civilian industry in USA, UK, Germany, Sweden and some other countries.