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Tantalum wire
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Tantalum wire

Commodity£ºTantalum wire
Standard£º   ASTM B 365-98

Dimension:¡é0.25~¡é4mm

 

 

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Tantalum wire  

Material:      RO5200, RO5400, RO5252(Ta-2.5W), RO5255(Ta-10W)

Available size:  ¡é0.25~¡é120mm

Standard:      As per ASTM B 365-98

Purity :        >=99.95% or 99.99%

 

Table.1.Chemical composition:

Chemistry                                                               ppm
Designation
Chief component
Impurities  maxmium
Ta
Nb
Fe
Si
Ni
W
Mo
Ti
 
O
C
H
N
Ta1
Remainder
300
40
30
20
40
40
20
 
150
40
15
20
Ta2
Remainder
800
100
100
50
200
200
50
 
200
100
15
100
TaNb3
Remainder
£¼35000
100
 100
50
200
200
50
 
200
100
15
100
TaNb20
Remainder
170000-
230000
100
100
50
200
200
50
 
200
100
15
100
Ta2.5W
Remainder
400
50
30
20
30000
60
20
 
150
50
15
60
Ta10W
Remainder
400
50
30
20
110000
60
20
 
150
50
15
60

 

Table2. Permissible variations in diameter for rods and wires

Diameter, inch (mm)

Tolerance, +/-inch (mm)

0.010~0.020 excl (0.254~0.508)

0.0005 (0.013)

0.020~0.030 excl (0.508~0.762)

0.00075 (0.019)

0.030~0.060 excl (0.762~1.524)

0.001 (0.025)

0.060~0.090 excl (1.524~2.286)

0.0015 ( 0.038)

0.090~0.125 excl (2.286~3.175)

0.002 (0.051)

 Table3. Mechanical requirements (annealed condition)

Wire, Diameter, inch (mm)

Grade

Diameter, inch (mm)

tensile strength,    psi (MPa),¡İ

Elongation,      %, ¡İ

RO5200/RO5400

0.010(0.254)~0.0149(0.379)

35000 (241)

10

0.015(0.381)~0.0249(0.633)

35000 (241)

15

0.025(0.635)~0.124(3.14)

30000 (207)

20

RO5252

0.010(0.254)~0.0149(0.379)

40000 (276)

5

0.015(0.381)~0.0249(0.633)

40000 (276)

10

0.025(0.635)~0.124(3.14)

40000 (276)

15

RO5255

0.010(0.254)~0.0149(0.379)

70000 (482)

5

0.015(0.381)~0.0249(0.633)

70000 (482)

10

0.025(0.635)~0.124(3.14)

70000 (482)

15

RO5240

0.010(0.254)~0.0149(0.379)

40000 (276)

10

0.015(0.381)~0.0249(0.633)

40000 (276)

15

0.025(0.635)~0.124(3.14)

40000 (276)

20

Note: 10" (254mm) gage length to 0.050"(1.27mm) diameter and 1" (25.4mm) or 2"(50.8mm) gage length over 0.050"(1.27mm) diameter    Special requirements to be agreed on by the supplier and buyer of negotiation
 

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