Tantalum's corrosion resistance makes it a valuable material in a large number of chemical applications
Jul 10, 2017


Tantalum's corrosion resistance makes it a valuable material in a large number of chemical applications. We use our "unyielding" material, for example, to produce heat exchangers for the equipment construction sector, charge carriers for furnace construction, implants for medical technology and capacitor components for the electronics industry.


Tantalum is a sensible choice whenever high corrosion resistance is required. Even though tantalum is not one of the noble metals, it is comparable to them in terms of chemical resistance. In addition, tantalum is very easy to work at well below room temperature despite its bodycentered cubic crystal structure.


Chemical Compositions

Chemistry                                                               ppm

Designation

Main Contents

Impurities maximum

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

9. Permissible variations in diameter for Tantalum rods and Tantalum 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)

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)