tantalum bar ASTM B365 standard:ASTM B365 RO5200,RO5400 RO5252 (Ta-2.5W) RO5255 (Ta-10W) purity:99.95%,99.99% ISO9001:2008

tantalum bar ASTM B365

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.

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

Chemical Compositon

Type			Ta1	Ta2	TaNb3	TaNb20	FTa1	FTa2
Chemical Composition %	principal component	Ta	Remainder	Remainder	Remainder	Remainder	Remainder	Remainder
		Nb	-	-	1.5-3.5	17-23	-	-
	Impurity≤%	Fe	0.005	0.030	0.030	0.030	0.010	0.030
		Si	0.005	0.020	0.030	0.030	0.005	0.030
		Ni	0.010	0.010	0.010	0.010	0.010	0.010
		W	0.010	0.040	0.040	0.040	0.010	0.040
		Mo	0.010	0.020	0.020	0.020	0.010	0.020
		Ti	0.005	0.010	0.010	0.010	0.005	0.010
		Nb	0.050	-	-	-	0.050	0.100
		O	0.015	0.030	0.030	0.030	0.030	0.035
		C	0.010	0.020	0.020	0.020	0.010	0.050
		H	0.002	0.005	0.005	0.005	0.002	0.005
		N	0.010	0.025	0.025	0.025	0.010	0.030

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

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 countri

Packaging

We would like to pack the products in plywood case or as per order

Payment

 OL/C,T/T,D.P,western union is acceptable

Photo shows

If you have any needing,pls contact me any free time~~

Looking forward to hearing from you~~