Pure Tantalum Bar in China

Specifications Pure Tantalum Bar

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

Pure Tantalum Bar specification

1.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. 2.GB 14841 as follows:

Type	Manufacturing Method	Supplying State.	Diameter	Length
			mm
Ta1         Ta2                     TaNb3     TaNb20	Forging	Hard State     Annealed Condition	3.0-6.5	500-1500
			>6.5-10.0	400-1500
			>10-18	300-1200
		Hot Forging State Annealed Condition	>18-25	200-2000
			>25-40	150-4000
			>40-50	100-3000
			>50-65	100-1500
	Extrusion	Hot Extrusion State Annealed Condition	18-25	200-2000
			>25-40	150-2000
			>40-65	100-500
FTa1 FTa2	Rolling	Hard State    Annealed Condition	3.0-5.0	500-1500
			>5.0-12	300-1200

3.Tolerance

Diameter	Diameter  Tolerance				Length	Tolerance
	forging rod	Extruded Rods	rolling rod	ground rod
3.0-4.5	±0.05	-	±0.05	-	500-1500	+ 5
>4.5-6.5	±0.10	-	±0.10	-	500-1500	+ 5
>6.5-10.0	±0.15	-	±0.15	-	400-1500	+ 5
>10-16	±0.20	-	±0.20	-	300-1200	+ 5
>16-18	±1.0	-	-	±0.30	200-2000	+ 20
>18-25	±1.5	±1.0	-	±0.40	200-2000	+ 20
>25-40	±2.0	±1.5	-	±0.50	150-4000	+ 20
>40-50	±2.5	±2.0	-	±0.60	100-3000	+ 20
>50-65	±3.0	±2.0	-	±0.80	100-1500	+ 20

Pure Tantalum Bar photo shows

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