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Tantalum Rod

Tantalum Rod Tantalum Rod Tantalum Rod

Tantalum Rod, Tantalum Bar

Tantalum-10% Tungsten and Tantalum-2.5% tungsten have a higher strength at elevated temperatures, and better corrosion resistance than pure tantalum.
Standard: ASTM B365

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

<35000

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

Permissible variations in diameter for Tantalum rods

Diameter, inch (mm)

Tolerance, +/-inch (mm) 

 0.125~0.187 excl (3.175~4.750)

0.003 (0.076) 

 0.187~0.375 excl (4.750~9.525)

0.004 (0.102) 

 0.375~0.500 excl (9.525~12.70)

0.005 (0.127) 

 0.500~0.625 excl (12.70~15.88)

0.007 (0.178) 

 0.625~0.750 excl (15.88~19.05)

0.008 (0.203) 

 0.750~1.000 excl (19.05~25.40)

0.010 (0.254) 

 1.000~1.500 excl (25.40~38.10)

0.015 (0.381) 

 1.500~2.000 excl (38.10~50.80)

0.020 (0.508) 

 2.000~2.500 excl (50.80~63.50)

0.030 (0.762) 

Mechanical requirements (annealed condition)

    Rod, Diameter 0.125" (3.18mm)~2.5" (63.5mm)

 Grade

Tensile strength, psi (MPa), ≥ 

Yield strength, psi (MPa), ≥ 

Elongation in 1 inch gage length, %, ≥ 

 RO5200/RO5400

 25000 (172)

 15000 (103) 

25 

 RO5252

 40000 (276)

 28000 (193) 

 20

 RO5255

 70000 (482)

 55000 (379)

 20

 RO5240

 40000 (276)

28000(193)

 25

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

 

Related Links

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Tungsten Rod
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