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tantalum products
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Current Category:tantalum products

Tantalum tubes

Tantalum tubes

Tantalum tubes   Tantalum- tungsten alloy tubes

Material:  RO5200RO5400RO5252(Ta-2.5W)RO5255(Ta-10W)
size:      Diameter: φ1.0-150mm
       Thickness: 0.2-5.0mm
       Length:  100mm-12000mm       
Standard:  As per ASTM B521-98

Table 1. Chemical composition:

 

Chemistry

Designa

tion

Chief

component

Impurities     Maxmium

 

Ta

Nb

Fe

Si

Ni

W

Mo

Ti

Nb

O

C

H

N

Ta1

Remainder

——

0.005

0.005

0.002

0.01

0.01

0.002

0.03

0.015

0.01

0.0015

0.01

Ta2

Remainder

——

0.03

0.02

0.005

0.04

0.03

0.005

0.1

0.02

0.01

0.0015

0.01

TaNb3

Remainder

<3.5

0.03

0.03

0.005

0.04

0.03

0.005

——

0.02

0.01

0.0015

0.01

TaNb20

Remainder

17.0~23.0

0.03

0.03

0.005

0.04

0.03

0.005

——

0.02

0.01

0.0015

0.01

Ta2.5W

Remainder

 

0.005

0.005

0.002

3.0

0.01

0.002

0.04

0.015

0.01

0.0015

0.01

Ta10W

Remainder

 

0.005

0.005

0.002

11

0.01

0.002

0.04

0.015

0.01

0.0015

0.01

Table2. Permissible variations in diameter & wall thickness

 

 Outside diameter, inch (mm)

Diameter tolerance, inch(mm), +/- 

Permissible variaton in wall thickness, %, +/- 

 <1 (25.4)

0.004 (0.102) 

5

 1~1.5 (25.4~38.1)

0.005 (0.127) 

5

 1.5~2 (38.1~50.8)

0.006 (0.152) 

5

 2~2.5 (50.8~63.5)

0.007 (0.178) 

5

 2.5~3.5 (63.5~88.9)

0.010 (0.254) 

5 

 

Table3. Mechanical requirements (annealed condition)

 

Grade

Tensile strength  δbpsi (MPa), ≥

Yield strength  δ0.2, psi (MPa),≥

 Elongation in 1"/2" gage length, %, ≥

RO5200/RO5400

30000 (207)

20000 (138)

25 

 RO5252

40000 (276) 

28000 (193) 

20 

 RO5255

70000 (481) 

60000 (414) 

15 

 RO5240

40000 (276) 

28000 (193) 

20 

Special requirements to be agreed on by the supplier and buyer of negotiation